• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This invention discloses a mobile slurry / slurry emission reduction system, such as liquid fertilizer, wherein the mobile system is mounted on a mobile unit and comprises a liquid slurry spreader with a slurry acid delivery / injection agent wherein the slurry sprayer and / or the means for supplying / injecting an acid into the slurry are associated with distribution means for allowing a slurry with reduced emission to be placed at the site of application, wherein the means for supplying / injecting an acid into the slurry comprises an acid tank where the acid tank is arranged as a front tank on the mobile unit.
    公开号:DK201400014U1
    申请号:DK201400014U
    申请日:2014-01-28
    公开日:2014-02-14
    发明作者:Toft Morten
    申请人:Toft Morten；
    IPC主号:
    专利说明:

    in DK 2014 00014 U1
    Mobile system and apparatus for reducing manure and odor from manure
    FIELD OF THE INVENTION
    The present invention relates to reducing the emission of slurry ammonia and hydrogen sulphide in particular.
    BACKGROUND OF THE INVENTION
    Significant amounts of manure emissions, especially ammonia, but also bad odor from compounds such as hydrogen sulphide, are produced when the manure is stirred during dispersal on the soil by e.g. a field.
    Currently, countries such as Denmark and the Netherlands are introducing legislation to limit emissions. Especially ammonia, which damages nitrogen-sensitive natural areas by eutrophication, and hydrogen sulphide, which produces a bad odor and is generally not accepted by society.
    In a country like Denmark, 95% of emissions come from agriculture, such as animal husbandry, especially pigs and cows. Emissions are identified for three sources - animal sheds, manure storage facilities and the spread of manure in a field. The current legislation aims at reducing emissions from stables (requires a 30% reduction) and storage facilities (roofing of plants). The upcoming legislation aims at reducing the spread of manure on agricultural land and currently determines the use of land reclamation on black soil and pasture land.
    Furthermore, it is known that the fertilizer effect of the slurry is reduced when the slurry is delivered on the ground due to the volatilization of primary ammonia. This has traditionally been solved by bringing the slurry into the soil by producing a groove, placing the slurry in the groove and covering the slurry with soil. However, pulling a large number of harrow tines and slurry cover mechanisms through the ground is very demanding, reducing the working width of the slurry spreader, thereby increasing working time. Furthermore, the overall requirements for the manure spreader / manure tanker structure are increased.
    2 DK 2014 00014 U1
    The reduced working width of the manure spreader increases the time it takes to disperse the manure. Therefore, it is necessary that the slurry spreader runs between the tracks which are usually used for field work, e.g. when fertilizers are dispersed, when pesticides are dispersed or otherwise. Driving between normal tracks can reduce field yield by up to 5%.
    There are several technologies available for the various emission sources to limit or eliminate emissions.
    Stable Acid Addition Air Washing Ozone Slurry Cooling Less sloping area Storage Acid addition Natural crust Burnt clay granules Plastic squeegee Presening cover Mark Acid injection Injection Spreading and cultivation £
    As can be seen, acid addition is the only technology covering all three sources. When the slurry pH is lowered, ammonia is converted to ammonium, which does not evaporate.
    island
    The reason for the various technologies is economical, which includes the need for biogas production material as well as the inconvenience and potential danger of handling large quantities of acid.
    The slurry cannot be acidified before the fermentation process if it is to be used for biogas production. In order to maintain the viability of the methane-producing bacteria in the slurry, the pH must be kept above 6.8. Furthermore, biogas production generally increases the pH of the slurry from pH 7 to pH 8. Thus, if the biogas is part of the slurry chain, acidification / acid addition must be done during application / spreading.
    In the event that the slurry is degassed, it is much more vulnerable to emission as the slurry pH is increased by degassing. In the case of biogas, the emission from the slurry increases from approx. 10% to 40% when the pH is increased from pH 7 to pH 8. Therefore, acid addition has a much greater effect, since it is possible to eliminate the emission from ammonia during application / dispersion. As there is much more ammonia in the degassed slurry, the economics of acid addition are also improved.
    Further benefits are obtained from acid addition during slurry application / spreading. Firstly, not all slurry to be used for distribution / spreading must be acidified. If the manure is used for spring crops, such as spring barley or maize (an estimated 30% of all manure), there is no need to add acid as the manure will be deposited in the soil before or during sowing in the spring. After that, the slurry can be unnecessarily acidified by biogas plants, which is uneconomical.
    Second, the slurry contains a large pH buffer due to its organic content. If the slurry is lowered to e.g. pH 6, it will return to a higher pH level than before the acid addition within 100 hours. This means that the slurry pH needs to be lowered to below 5.5 to keep it safe. The economic level of emission reduction is between 6 and 6.5 and therefore reducing the slurry pH to 5.5 is an additional cost.
    From U.S. Patent 3,966,450, it is known to add inorganic acid to the slurry to lower the slurry pH to reduce the emission of ammonia from the slurry.
    However, acidification of large quantities of manure requires large amounts of acid. Handling large amounts of inorganic acid as well as the process of adding acid to manure is dangerous due to the chemical properties of the acid as well as the development of heat and gas during mixing of manure.
    From EP 0 569 321 A1 and NL C 1012650 it is known to inject acid into slurry just before distribution / application of slurry. The acid tank is located on or in the manure tanker / manure spreader. Thus, the acid must be poured manually or pumped into the acid tank, which is both dangerous and time consuming. Furthermore, coupling of the acid tank with the manure tanker / manure spreader adds a significant additional load to the manure tanker / manure spreader, which reduces the manure of the manure tanker / manure spreader. Therefore, it is necessary to perform extra runs to distribute / disperse a certain amount of manure.
    4 DK 2014 00014 U1
    Objects of the Invention
    It is the object of the present invention to provide a simple and safe system and method for handling large amounts of acid used to reduce the emission of volatiles to overcome the above problems.
    Description of the Invention
    The following invention addresses these issues. A mobile slurry / slurry emission reduction system, such as liquid manure, wherein the mobile system is mounted on a mobile unit and comprises: a slurry tanker / slurry in liquid communication with means for supplying / injecting an acid into the slurry where the slurry tanker the / diffuser and / or means for supplying / injecting an acid into the slurry are associated with distribution means for allowing slurry with reduced emission to be placed at the site of application, and wherein the means for supplying / injecting an acid into the slurry comprises an acid tank, where the acid tank is arranged as a front tank on the mobile unit.
    In an advantageous embodiment, the front tank is shielded by an enclosure.
    It should be emphasized that throughout this description, the term "slurry" is to be interpreted as any kind of liquid fertilizer, organic fertilizer, slurry or similar liquid or partially liquid mass in the form of an aqueous mixture of substantially insoluble material.
    Furthermore, it must be emphasized that throughout the application the term "place of application" is to be understood as any kind of field, soil or similar where the manure and / or nutrient qualities of the manure are utilized.
    Throughout the application, the term "emission-reducing substance" is to be understood as the product resulting from the process of treating slurry with at least acid.
    Emission from manure is meant as emission primarily from ammonia, but also from other fertilizers, nutrients or smells of manure.
    5 DK 2014 00014 U1
    In order to obtain a system that changes the manure properties, means are needed to inject / supply acid to the manure along with the capacity to store the manure before it is modified, as well as means to distribute / disperse it at the site of application. Furthermore, connections are needed e.g. in the form of hoses necessary for the proper functioning of the system. The components of the injection / delivery agent and the distribution / dispersion means can be retrofitted to existing machinery, such as a manure spreader / manure tanker and a mobile vehicle capable of hauling manure manure / manure spreader, preferably a tractor.
    It is emphasized that slurry / slurry tanker shall be understood as any tank which may include slurry and be associated with means of injection / supply of acid and means for applying / spreading the emission-reduced substance (modified slurry) at the place of use.
    The slurry is usually applied from the storage tank / slurry tank to a field 2-8 times during the season. The storage tanks usually have a capacity between 1000 and 5000 m3. It is very difficult to add the acid to such a large amount and mix it evenly.
    Furthermore, when the acid is added to the slurry, it will lead to a significant decrease in the pH of the slurry. However, when allowed to remain in the storage tank for more than 24 hours after the addition of acid, the pH buffer in the slurry's organic matter will be activated and eventually lead to a higher pH value than before the acid treatment. It is therefore necessary to treat the slurry during the application process from the storage tank to the field.
    Adding acid to the slurry can be very dangerous as an instant evolution of CO2 and heat takes place. If the acid were to be added while filling the tank of the manure tanker / manure spreader, the carbon dioxide would create a lot of foam and limit the amount of manure that may be in the tank, alternatively it would create such a pressure that the tank could burst.
    To prevent possible damage to the manure tanker / manure spreader and the creation of possible explosive situations, the acid can be added to the manure without application to the field.
    6 DK 2014 00014 U1
    Injection of the acid directly into or near the pump is therefore advantageous in that it is uniformly mixed in the slurry and carried directly to the site of application without any danger. However, acid pumping / acid injection can be arranged in several places along the slurry's path from the slurry pump and to the means of distribution as long as the acid is not injected into the slurry tanker / slurry spreader.
    The mobile system is advantageously mounted on a mobile unit, whereby it can be transported not only to the place of use but also around the place of use. For example, the mobile unit may be a tractor, a truck or any other vehicle capable of moving the mobile system.
    Therefore, the farmer only needs to buy additional equipment and not brand new machinery for the distribution system to work.
    The amount of acid used ranges from 10 to over 100 l / ha. When using acid to reduce the pH of the slurry, significant personal risk is involved as acid is very corrosive and classified as dangerous goods. When the slurry is distributed / dispersed, the amounts of acid will vary greatly and the differences will be considerable, depending on the slurry pH and the intended emission reduction. The variance can be from 0.5 to 10 1 / m3 slurry.
    Since a normal application / application rate is between 20 and 40 m3 slurry per day. per hectare, and slurry spreads often work 24 hours a day in high season, leading to a capacity of approx. 2500 m slurry per 24 hours and a consumption of from 1250 to 25,000 1 acid. A commonly used sulfuric acid has a density of 1.84 g / cm 3.
    Normally, a manure tanker / manure spreader carries a load of between 15 and 25 tonnes of manure, and since the total axle load must not exceed 10 tonnes, the manure tanker / manure spreader often exceeds the legal weight limits for driving on public roads.
    7 DK 2014 00014 U1
    It is therefore of the utmost importance that the manure tanker / manure spreader carry only a small amount of acid. Furthermore, the logistics of supplying the manure spreader with enough acid must take as little time as possible and at the same time be completely safe to handle. It is also very important that this task can be performed by one person alone, as the tractor driver will very often be without the help of others.
    During this process, it is very important that the logistics chain does not expose people to unnecessary risk. The system therefore includes a front tank container designed for transport to a filling point - acid production, port or other filling site - where maximum safety can be assured during filling the tank. The potentially dangerous task of filling the front tank with acid is therefore no longer the responsibility of the tractor driver. He just wants to lift the tank in place at the front of the tractor. The front tank is then connected to the means for supplying / injecting acid, and the acid can be safely transferred from the front tank to the acid injection site where the acid is mixed with the slurry.
    The acidic front tank may advantageously be arranged in a housing designed to be arranged in front of a mobile vehicle, such as a tractor, and comprise an opening through which the acid-filled tank can be arranged, either by moving the tank in place with a forklift truck or by push or drive the tank into the cage when the enclosure is arranged just above ground. The enclosure can, after installation of the acid tank, be lifted up to a given position above the ground and held in this position during further transport. The opening of the enclosure can be either at the top of the enclosure or at the bottom of the enclosure.
    The opening of the enclosure can be closed with a door, such as a door. can be pushed aside or in front of the opening to open or close the opening, or the door can be connected to the enclosure with hinges. The door is preferably made of rods, but can be made of any material, e.g. material similar to the enclosure as long as the opening can be sufficiently closed to prevent the acid-filled tank from being dropped from the enclosure.
    Arranging the acid-filled tank in an enclosure is advantageous, as the enclosure can be assembled in a way that allows the acid-filled tank to be protected against accident during transport, e.g. in that the enclosure is collision-proof. Large amounts of acid can then be transported without risk to the environment, persons, etc.
    The acid tank can be arranged on a tractor connected in front of the manure spreader / manure tanker. This invention describes a pallet truck with a three-point suspension for a front lift on a tractor. This type of compound is advantageous because of the flexibility that allows the compound to be stable and the ability to raise and lower the acid tank / pallet tank. It allows the acid tank to be replaced more easily. However, the acid tank and / or pallet truck may be arranged in front of e.g. a tractor with every possible connection, as long as the connection is safe and firm, so that the acid tank, e.g. not damaged or lost during transport. The mobile system is in fluid communication with a manure tanker / manure spreader via hoses and pipes.
    Currently, biogas systems are being installed in large numbers. Germany has over 4000 units, and in Denmark the government has announced a strategy for degassing 50% of all manure in 2020. The mobile system for acid addition has a great advantage, as it is possible for the farmer to use a strategy with biogas and later acidification of slurry as well as acidification in the barn. He can also choose between his own investment or buy it as a service from a contractor.
    The mobile system is either an Original Equipment Manufacturer, OEM, system or a retrofitted system that can be mounted on various known vehicles, such as slurry / slurry tankers. Therefore, the system is highly compatible with the equipment already available in e.g. agriculture, and therefore economically feasible for the farmer.
    In an advantageous embodiment, in addition to a tractor and a slurry / slurry tanker, the overall system includes a secure front tank system for a tractor to transport the acid to the site of application, logistics agents for acid injection near or in the tank slurry / distribution tank or tube. leads the acid to the distributor, a system for measuring slurry pH (units for measuring volume, an online pH unit) to determine the amount of acid needed to comply with applicable emission limit legislation, documentation system (terminal - or 9 DK 2014 00014 U1 documentation unit) of the effect of the acid and thereby the emission from the slurry, an on-off safety device and theft protection.
    In a further advantageous embodiment, the mobile system further comprises one or more pH sensors.
    The pH sensors can be mounted in the mobile system in one or more places. Preferably, one or two pH sensors can be mounted in the mobile system. Using two pH sensors, they can be placed before and after injection / delivery of acid, leading to a measurement of the effect of added acid, and the amount of acid can be adjusted by knowing the pH before and after the treatment, combined with knowledge of the volume of the slurry. that needs to be addressed.
    A pH measurement can be performed at the beginning of the slurry composition and made several times with the addition of acid. The multiple measurements can be taken as spot measurement at specific times, such as once every 15 seconds, every 30 seconds, every minute or once every five minutes, or the pH can be measured continuously. When a specific pH value of slurry mixed with acid is reached, the supply of acid can either be stopped manually by the person operating the mobile system or automatically stopped by the mobile system when a predetermined pH value is reached.
    Furthermore, the final pH can be determined theoretically after measuring the slurry pH before acid addition and knowing the volume flow of slurry to be applied. Furthermore, the season and the species of animal from which the slurry comes must be entered, together with the type and pH of the acid in a computer unit to calculate the acid flow.
    This is very advantageous as the correct amount of acid can be added. Too little an amount can lead to insufficient lowering of the pH and an insufficient amount of NH3 will be converted to NH4 +. Therefore, the volatile NH3 will still be discharged. The supply of too much acid is financially inadequate and handling large quantities of acid is problematic. Therefore, it is important to find the correct balance between too much and too little acid added.
    Preferably, the pH sensor is arranged according to a distributor contained within the distributor means for the most reliable measurements. Therefore, additional connection hoses are preferably arranged in the mobile system, which carries the emission-reduced substance from the distributor to the pH sensor, which is arranged on the slurry / slurry tanker before the emission-reduced substance is distributed / dispersed at the site of application.
    In a further advantageous embodiment, the mobile system further comprises at least one additional tank, the at least one additional tank being arranged adjacent to the front tank, preferably integrated into the enclosure. In a still further embodiment, the mobile system comprises at least one sensor capable of measuring the contents of the at least one additional tank and / or the acid tank.
    The mobile system may advantageously be equipped with at least one additional tank or container for transporting additives to be added to the slurry or the emission-reducing substance. The additional tanks or containers may be arranged adjacent to the acid tank, e.g. on both sides of the acid tank. The additional tanks can either be integrated into the enclosure, ie. containers are arranged in separate or partially separate compartments adjacent to the acid tank, or the additional tanks may be arranged on the outside of the enclosure, optionally attached to the enclosure with a locking mechanism.
    Preferably, one of the tanks contains water and is arranged adjacent to the acid tank. The water can be used for cleaning the system after the slurry acid addition process to clean and clean the hoses and connections in the mobile system. This avoids that small amounts of acids are left in the hoses of the mobile system and may involve a risk of handling the mobile system if there is a risk of acid leaking on the person handling the system, the formation of gases or possibly the etching of parts in the system. Of course, this is a greater risk if the mobile system is only used for a short period each year.
    Furthermore, the life expectancy of the sensors is extended if they are purified with water after use. In particular, the pH sensor can be damaged by prolonged contact with slurry, and the expected life of the pH sensor is therefore greatly increased by creating an aqueous environment during the rest periods, ie. when the mobile system is not used.
    The water entry into the mobile system can either be through the same connection and hose through which the acid enters the system, or it may be through another hose. If it is the same connection and hose, the connection is preferably a * dry coupling * and arranged in such a way that the connection is easily transferred from the dry coupling compound of the acid-filled tank and the container with water. If there are different connections and pipes, the pumping of acid or water is independent, either by one or by separate pumps. However, pumping either acid or water is preferably controlled automatically, as mixing strong acid with water can be very dangerous. The pumping can preferably be controlled from a common computer unit with a common interface which coordinates all interactions and measurements of the mobile system.
    It should be understood that the contents of the additional tanks may be components other than water, e.g. iron sulphate, but that the pumping mechanism and the coupling to the overall system are similar to the mechanisms described for water. Although other constituents such as iron sulphate can be added to the slurry with acid and can be controlled by measuring the amount of component needed to change the overall slurry composition to values given by, for example, government directives.
    In a further advantageous embodiment, the mobile system further comprises one or more sensors capable of measuring the amount of nitrogen, phosphorus and / or potassium in the slurry. In a further advantageous embodiment, the mobile system further comprises a GPS unit with a log function or a GPS unit with a log function and a wireless mobile telephone module such as a GSM connection.
    As an option, the system may comprise one or more sensors for measuring the NPK content of the slurry or at least one of the components nitrogen, phosphorus and potassium. This is useful as the amount of each component is important for appropriate growth of the plants in the field. In addition, the required amount will vary with the soil type as well as the crops. Knowing the composition of the slurry to be processed is an advantage that can be obtained with GPS and a wireless mobile phone module, such as a GSM connection integrated into the system.
    A GPS unit with a log function or a GPS unit with a log function and a wireless mobile phone module, such as a GSM connection, for storing the data on a remote server can advantageously be combined with the mobile system. A number of countries, like Denmark and the Netherlands, have introduced legislation to limit emissions from manure application. In order to manage the legislation, there is a requirement to document emissions reduction and can be accommodated with the GPS unit with a log function as well as a wireless mobile phone module such as a GSM connection.
    In addition, to optimize the economically beneficial amount of acid to be used, it is necessary to know the amount of nitrogen in the slurry. Nitrogen levels can vary between different slurry species, but also within a single slurry storage tank / slurry tank, depending on how well the slurry has been mixed prior to distribution / spread. Measurement of each portion of slurry is therefore preferred.
    The nitrogen level can be measured with an external NIR sensor system or it can be integrated into the slurry / slurry tanker control system. Measuring the amount of nitrogen in the slurry on the fly allows the system to distribute the emission-reduced substance according to kg N per kilogram. instead of m1 2 3 slurry per ha. Since each tank load has a varying amount of kg N per ha, this is a major advantage in distributing the ideal amount of nutrients that are part of the emission-reducing substance. Algorithms in the system will then determine whether the required amount of acid will simply comply with current legislation or whether more acid should be added to optimize the economic yield. This will optimize yield - and thus the economy - and reduce the possible leaching of nutrients to waterways that cause environmental damage.
    in case the slurry is applied to a field, the authorities require documentation 2 of the pH value at the time of application to approve the 3 acid addition technology. It is therefore advantageous to have the system integrated into the application system (manure spreader / manure tanker) as the system already has the necessary pH measurement and documentation equipment.
    In an advantageous embodiment, the mobile system further comprises foam generators, which foam generators convert the slurry to foam, preferably using a compressed air foaming system or an air suction foam system, and wherein the foam generating means are arranged in connection with the distribution / spreading means.
    In some embodiments, it is advantageous to generate foam in addition to injection of acid. The foam is formed from all the slurry to be distributed / spread. The foam slowly releases the slurry into liquid form, allowing the soil to absorb all nutrients from the slurry where it was intended, creating good economics through plant growth where it was intended, reducing the potential environmental impact of excess nutrients. The foam thus advantageously prevents the effect of drains, which are often seen when liquid slurry or liquid slurry combined with foam is supplied with undulating and sloping soils. Furthermore, the foam reduces the volatility of unwanted volatiles such as NH3, because the bubble's foam structure lowers the rate of volatility of the volatiles, thereby reducing the diffusion.
    The slurry is converted to foam by whipping gas into the slurry with a compressed air foaming system (CAFS) or by the supply of acid, e.g. injection into the slurry. Acid can be injected before or after the foam is produced. However, adding acid first may lead to a useful effect, since mixing acid and slurry produces heat and increased pressure, whereby a reduced amount of pressure is required to create foam. Therefore, less effect is needed for foaming.
    In addition, several CAFS equipment today are capable of generating two or more separate streams where the physical characteristics of the foam are different, e.g. a fine and a coarse bubble structure. After generating the various foam types, these can be pooled into a stream within the CAFS equipment and as such fed to the distribution means. Due to the nature of the foam, the foams having different physical properties will not mix 14 DK 2014 00014 U1. Therefore, the coarse foam at the point of application will end up being closest to the ground, while the fine foam will end up on top of the coarse foam.
    Furthermore, the foam may be made by a mechanical process such as injection of a gas, the process being selected from one of the following: injection of air or other gas into the slurry; or by whipping air or other gas into the slurry; or by removing pressure from the slurry, e.g. using a compressed air foaming system or an air intake suction foam system.
    In one aspect of the invention, the foam run-off time is maximized in order to create a foam cover in the field. This will to some extent act as a greenhouse and serve as a growth promoter for the plants as the soil temperature rises below the protective foam. Instead of applying the foam at a single overpass at 20 - 40 tonnes / ha, several runs with smaller quantities of manure are made over a number of days, so that the use of plastic in agricultural or horticultural operations in the open air may be avoided.
    Furthermore, the foam layer can possibly reduce the turbulence of the atmosphere, which comes from the wind, and thus significantly reduce evaporation of water from the field. The amount of moisture available to plants is a critical factor, especially in the early growth stages where slurry is often applied and can lead to significantly higher yields.
    In a further advantageous embodiment, the mobile system further comprises connecting means for transporting the acid from the mobile system to the slurry in a slurry channel or a front tank.
    The mobile system can be used as an acid supply to directly supply golden acid in either slurry channels or in a front tank. In this system, the acid is passed from the acid tank in front of the mobile unit and through connecting means, e.g. a hose, pipe etc. connected to the mobile system. The connecting means preferably goes along the crane arm of the manure spreader / manure tanker and together with it is lowered into the manure channel or front tank. Alternatively, connecting means may be lowered into the slurry separate from the crane arm and may be distributed independently of the crane arm. In this way, the acid can be pumped into the slurry without any mixture other than the ordinary transport of the slurry in the slurry channel or mixture in the front tank.
    The connecting means connected to the manure crane arm of the manure spreader / manure tanker or a similar mechanism allows further mixing of the manure and the acid and ensures that the acid is properly mixed with the manure. It prevents the formation of large amounts of acid in a smaller area, which must be avoided for safety reasons. Furthermore, the continued movement of the slurry in the slurry channels means that the mobile system only needs to be transported to one place in the stable, and from there all the slurry in the slurry channels can be added acid. After reaching a given pH of the slurry in the slurry channel or front tank, the crane arm or connecting means can be removed from the slurry, and the mobile system can be used for other purposes such as acidification of slurry for distribution / spread on fields or to lower the pH of the slurry channels or front tank. (e) in another barn.
    In order to be able to use the mobile system on multiple farms, an additional function is preferably present in the mobile system. At the end of each task or at the end of a job where the mobile system is to be used on another farm, the system is cleansed to prevent the spread of pollution between the farms. This can be done by filling the slurry / slurry tank with slurry, lowering the slurry pH to pH 0-2 and circulating the acidified slurry for a certain time, preferably at least We hour before emptying the slurry / tanker into slurry channels, front tanks or spreading on the ground. This can greatly prevent fumigation between farms, and further cleaning of the mobile system can be reduced to a minimum.
    Alternatively, the mobile system has means for removing the slurry from the barn, injecting acid into the slurry and returning the slurry to the barn. In one embodiment of the invention, the apparatus further comprises extraction means for extracting the slurry portion from the slurry channel and / or slurry storage tank / slurry container.
    Slurry can be pumped from the slurry channels or a slurry storage tank / slurry tank, e.g. by means of a crane arm where the slurry is fed from the slurry channels or a slurry collection tank via hoses or a similar mechanism into the slurry tanker / slurry spreader equipped with the mobile system. The slurry is now treated with acid to lower the pH and instead of distributing / spreading the acidic slurry on a field. The emission-reduced substance is returned to the slurry channels via hoses connected to the slurry channels and the mobile system.
    The advantage of the mobile system is that the barn does not have to invest in any permanent infrastructure for an injection system and is exposed to acid storage in the premises. In many cases, the farm will already have a manure spreader / manure tanker and can therefore increase the utilization of the manure spreader / manure tanker as it is usually only used for a two-month period each year.
    A normal manure spreader / manure tanker can be refilled and refilled with 20 m3 manure in 10 minutes. With an average of 1000 m3 slurry in the barn, the acid addition process should last only 8 hours and the process, depending on the pH value, should not be repeated more than once a month.
    If the farm does not have a manure tanker / manure spreader, it can use a rented manure spreader. It will have the same beneficial effect on the economy as this feature will be beyond the normal use of a slurry tanker / slurry spreader and extend the season, as well as being used far more frequently. In particular, it will save the farmer an expensive investment, which for many smaller farms will not be sustainable.
    There are also benefits to using a mobile acid addition system in older stables. Since they may not have the time to pay for the investment, buying the acid additive as a service can be a great advantage rather than investing a lot of money in a permanent infrastructure. It may be that the farmer has more than one production unit and with an investment in the mobile system he can add acid in all units with only one investment.
    This invention further discloses an automatic pH sensor system comprising a mobile system, wherein the automatic pH sensor system further comprises a pH sensor, which pH sensor is arranged in connection with a slurry in a slurry channel, wherein the pH sensor measures a The pH value of the slurry, and wherein the pH sensor is further associated with a warning system, which warning system comprises a computer unit.
    17 DK 2014 00014 U1
    The mobile system has means for measuring the pH of the slurry, which is usually between pH 6.5 and 7.5. The mobile system then lowers the pH to a level below pH 6. At a level of approx. The pH 5.5 reduces the emission of ammonia from the slurry to 0. The slurry pH can then be lowered to a level below the optimum pH 5.5 in the slurry channels. In the following weeks, the pH of the slurry channels will gradually increase again by the application of slurry in the slurry channels. Once the pH has returned to a level of pH 6 or above, it is time to repeat the process.
    A pH sensor can advantageously be arranged in conjunction with the slurry channel to measure the gradual change in pH. When the pH reaches a certain level of e.g. pH 6 or other predetermined pH value determined by the temperature of the stable and manure composition as well as the maximum allowable or desired emission of e.g. ammonia, a warning is signaled either to the farmer or to a contractor that it is time to re-add the slurry in the channels acid. The warning can be any kind of message, though a text message or email is preferable.
    The pH sensor can either communicate continuously to a computer unit or at specific times and send the slurry pH value with wireless communication, after which the computer unit correlates the actual pH value with the predetermined pH value. When the actual pH value is greater than the predetermined pH value, an email or SMS is sent to a predetermined address or an alarm in the form of sound or light can be turned on / off. Alternatively, the pH can be controlled manually.
    The computer unit may be integrated into the pH sensor or it may be a separate unit.
    The invention further discloses a process for reducing the emission of volatiles, such as slurry ammonia, with a mobile system as previously described, the method comprising the following steps a) feeding acid from a mobile unit's front tank, b) feeding the acid to the slurry for formation of an emission-reducing substance.
    18 DK 2014 00014 U1
    The means for generating the emission-reducing substance include tubes / tubes and flow systems for transporting the slurry to the means for injecting / injecting acid, in which the slurry is modified to an emission-reducing substance.
    The process generates an emission-reduced substance, which is distributed in the field or for distribution in slurry channels or front tanks. The mobile system is arranged on the manure tanker / manure spreader and the mobile tractor such as a tractor. An acid-filled tank is arranged as a front tank on the mobile towing vehicle, possibly inside an enclosure, and the acid tank is connected to the hoses of the mobile system. The acid is then pumped via pipes along the mobile tow truck and to the manure tanks / manure spreader, where the acid is mixed with manure pumped from the manure tanker / manure spreader. This creates the emission-reducing substance.
    Advantageously, the process of creating the emission-reducing substance can be produced during application at the site of application. Therefore, the slurry inside the distributor tank is not modified and no additional equipment should be introduced into the slurry spreader / slurry tanker itself. Equipment for treating the manure is arranged at the manure spreader / manure tank outlet or at a further position outside the manifold tank. The equipment can then be placed on ordinary manure tankers / manure spreaders.
    Furthermore, a method is described in which the amount of acid supplied to the slurry is calculated by a computer unit based on and preferably continuously adjusted with one or more pH measurements obtained with one or more pH sensors.
    Lowering the pH to achieve less emission from the slurry is well known. However, slurry from different animals as well as different portions of slurry from the same slurry / slurry tanker will vary in their pH to begin with as well as their reaction to the acid supplied. Therefore, the amount of acid needed in each case will be different, e.g. depending on the nature of the animals, the season, the shelf life of the manure, the mixture and the supply. Adding too much acid is expensive and increases the potential risk of its transport and handling. The slurry's pH and / or the emission-reduced substance may advantageously be measured one or more times to adjust the amount of acid added to the composition.
    The process may advantageously be automatic in measuring pH values both before, after and / or multiple measured pH values. It allows algorithms to adjust the amount of acid automatically and preferably gradually according to a preset pH. The target value can either be given at a government-determined level of emission or reduction of emission, or it can be the result of an economically beneficial level where the saved amount of ammonia is optimized for plant growth.
    When acid is added to the slurry there is a potential explosion hazard as a significant amount of heat and carbon dioxide is generated in the process. It is therefore important that the injection of acid takes place during the process of applying slurry in the field or under highly controlled conditions. The position of the injection pump and the control of the volume of the acid as well as the start and stop of injection are therefore very important to avoid dangerous situations.
    Further, a process is described in which an additive is added to the slurry or emission-reducing substance after conversion of all slurry to the emission-reduced substance, where the additive is oxygen, ozone, hydrogen peroxide, a ferrous sulfate solution, or bacteria.
    In one aspect of the invention, one or more additives may be added to the slurry or the emission-reducing substance. The additive may be one or more components of the groups of odor reducing agents, odor masking agents, oxidizing and / or deodorizing agents. Examples are oxygen, ozone, hydrogen peroxide, iron sulphate solution, extracted manure protein, various bacterial strains or inorganic acids such as sulfuric acid, phosphoric acid, hydrochloric acid, nitric acid, boric acid, hydrofluoric acid, hydrochloric acid, hydrochloric acid, or acetic acid, acetic acid, acetic acid, acetic acid, acetic acid, acetic acid, acetic acid, acetic acid.
    Oxygen, ozone and hydrogen peroxide are commonly known additives for reducing manure odors and can advantageously be combined with the emission-reducing substance, either before or after conversion of the slurry to the emission-reducing substance. This not only inhibits the emission of volatile substances from the slurry, but also the odor. It is very beneficial for the environment.
    Iron sulfate may be added to reduce e.g. the amount of phosphate in the slurry. Thus, the slurry that is distributed / spread in the field will be reduced in its phosphate content close to sensitive natural areas such as lakes.
    Different types of inorganic acids can be added to the slurry or the emission-reducing substance. Preferably, sulfuric acid is selected because of low cost and acidity value. Sulfuric acid comprises two positively charged hydrogen ions, which gives a great ability to lower the pH and convert ammonia to ammonium (NH3 to NFLf1 "). Ammonium cannot evaporate by diffusion as ammonia and will be retained by the soil at its positive charge and as such is one of the best fertilizers available.
    Bacteria are known to be capable of metabolizing several types of products, e.g. they are capable of reducing the manure odor by metabolizing its components. Lactic acid bacteria can be advantageously added, but other bacterial strains may also be suitable.
    Further, a process is described, the method comprising a further step in which the emission-reduced substance is transformed into foam.
    In an advantageous method, the emission-reduced substance is produced by a liquid part of the slurry where some or all solid material of the slurry is removed. This can be done with a filtration system or a system for centrifuging the slurry. This particular treatment is especially useful when creating foam because solid material in the slurry can hinder the foam formation process.
    Foam equipment such as CAFS (compressed air foam system) has the ability to create different types of foam with different bubble size and run-off time and is excellent for creating foam as an emission-reducing substance.
    21 DK 2014 00014 U1
    Two or more streams of emission-reducing substances can be produced with different physical properties to promote a low volatile emission and allow the nutrients to be absorbed by the soil.
    In one aspect of the invention, the foam application can be divided into two foam streams, the first foam stream having a coarse bubble structure which does not last long and in which there is no additive in the slurry and the second foam stream is a much finer bubble structure and treated with acid. and / or additives. Alternatively, both streams may be treated with acid and / or additives.
    The fine foam is placed on top of the coarse foam. This will allow for a smaller amount of additive since not all foam has been treated and the finer foam structure has longer run-off time. It will improve the emission reduction as it will have a longer run-off time and therefore a longer effect on the emission reduction. At the same time, it will prevent the effect of slurry drains on hilly terrain.
    In a further advantageous method, fine foam can be arranged at the sides of the coarse foam as well as on top of the foam. This can effect the coarse foam effective encapsulation and further prevent compounding when the coarse foam runs off.
    In one aspect of the invention, the coarse and fine foam is mixed and distributed / distributed through the same system. After application to the soil, the fine foam will always have a longer run-off time and will be left after the coarse foam is absorbed into the soil and eventually leave a low pH liquid film on the surface, allowing a much longer effect of the emission reduction.
    Alternatively, one or more of the streams may be created by supplying different types of emulsifier (s) to the emission-reducing substance. In this way, the emission-reduced substance is kept at the site of application for a sufficient period of time for the nutrients in the emission-reduced substance to be absorbed by the soil. An example of the emulsifier may be a relaxant.
    22 DK 2014 00014 U1
    Further description is a method in which the emission-reduced substance is distributed / dispersed at a site of application.
    The emission-reducing substance thus formed is then carried by the manure distributor of the manure tanker / manure spreader to the place of use. By way of example, the emission-reduced substance may be piped to a distributor which may be specially designed or be a distributor already present on ordinary tanks containing manure. Thus, the distributor may be of a form which distributes the manure / emission-reduced substance by wide spreading through a nozzle, broadly spreading through a boom with two to 100 nozzles, or by applying the manure / emission-reducing substance to the application via hoses / tubes which hanging vertically from a beam.
    Further, a process is described, the method further comprising steps of conveying the acid to a slurry channel or a front tank. Further, a method is described in which the slurry is further oxidized.
    The mobile system can be connected to a slurry channel in a stable or a front tank to lower the slurry pH. Acid is transferred from the front tank via the mobile system and via the connection to the slurry in the slurry or front tank. The emission of especially ammonia from the slurry ducts and front tanks is thereby significantly reduced.
    In addition, the addition of acid to slurry from slurry tanks can be combined with oxidation of slurry to increase the action of the acid. The oxidation can either be carried out in the slurry spreader / slurry tanker or an additional chamber introduced into the slurry and can be carried out either before or after the acid addition. If the oxidation is to be carried out on the manure spreader / manure tanker, manure is pumped into the manure spreader / manure tanker, preferably by means of the crane arm, and is oxidized with oxidizing agents, e.g. a compressor. The oxidizing agents are part of the mobile system. After oxidation, the oxidized slurry is returned to the slurry channel or front tank. If the oxidation is to be carried out in a further chamber, this chamber is connected to the oxidizing agents on the mobile system, e.g. via hoses. Slurry is pumped into the additional chamber, oxidized and pumped out of the additional chamber. The additional chamber and connection to the oxidizing agent is preferably attached to the crane arm.
    23 DK 2014 00014 U1
    Furthermore, the slurry from the slurry canals can be treated with additional components, such as ozone, iron sulfate, hydrogen peroxide, to obtain not only an ammonia emission-reducing substance but also an odor emission-reducing substance. The additional components are preferably part of the enclosure at the front of the tractor. However, they may as well be supplied from a tank next to the mobile system. They can either be fed into the manure spreader / manure tanker or mixed with manure when pumped from the manure spreader / manure tanker.
    Further, a method is described, the method comprising an automatic warning step, wherein the automatic warning step comprises the sub-steps a) measuring the pH of a slurry in a slurry channel, bringing a pH value, b) communicating the pH value to a computer unit, c) alternatively correlate the pH with a threshold and inform a provider of acid treatment needs if the pH is above this threshold.
    The slurry pH in the slurry channels can therefore be lowered by treatment in the mobile system. However, over time, the pH also increases with the emission due to the animals' continued filling of the slurry channels and to the organic content of the slurry channels. Therefore, the process of changing the pH of the slurry channels must be repeated.
    The method can advantageously be used where the pH of the slurry channel is measured point-wise or continuously by a pH-sensor. By point measurement, the pH sensor is advantageously raised from the slurry, cleaned and kept in a humid environment until the next measurement is to take place. After measuring the slurry pH, the pH value is stored on a computer unit where it can alternatively compare the pH value to a predetermined value.
    Description of the drawing
    Hg. 1 is a side view of a manure distributor system with hoses; FIG. 2 is a rear view of a manure distributor system with nozzles; FIG. 3 shows a mobile system with a front tank; FIG. 4 shows a front view of a front tank, 24 DK 2014 00014 U1 fig. 5 shows a side view of a front tank; FIG. 6 shows a top view of a closed front tank; FIG. 7 shows a mobile system connected to a slurry channel in a stable; FIG. 8 shows a crane arm immersed in a slurry for mixing with acid; FIG. 9 shows a crane arm immersed in a slurry for mixing with acid and oxygen; FIG. Figure 10 shows a crane arm submerged in a slurry for pumping the slurry into a slurry / slurry tanker for mixing with oxygen and returning to the slurry channel for mixing with acid.
    Detailed Description of the Invention
    A slurry manifold system 1 is shown in FIG. 1. This manure distributor system 1 comprises a tractor 3 connected to a manure tanker / manure spreader 5. The manure manure manure / manure spreader 5 is of the type in which spreading / distribution of manure is carried out through several hoses 7 for application of manure in the field (place of application) 9.
    The tractor 3 and the manure spreader / manure tanker 5 are equipped with an embodiment of the mobile system. At the front end of the tractor 3 is arranged an acid tank 11 which is connected via a pipe system 12 to an acid pump 13 combined with a slurry pump 15. Since the acid must not be accidentally injected into the tank containing slurry 5, the acid pump 13 cooperates with a tachometer 17 for coordination with the activity of the slurry pump 15, a flow meter 19, and / or a recirculation sensor 21 is set for field application.
    The mixture of manure with slurry is then passed past the flow meter 19 and the recirculation sensor 21 before the emission-reduced substance is distributed on the field 9 through the several hoses 7.
    The mobile system further comprises pH sensors 23, 25 to control the amount of the injected acid. In this particular illustration, there are two pH sensors, one 23 for measuring the pH of untreated slurry and one 25 for measuring the pH of the slurry after supply of slurry. The amount of acid to be pumped into the slurry can also be determined by the flow meter 19 alone or in combination with one or both pH sensors 23, 25. Further adjustment of the amount of acid pumped into the slurry can be performed with a NIR-25. DK 2014 00014 U1 system 27, which measures the amount of nitrogen which, in connection with the pH value, calculates the percentage of NH3 versus NH4 +. Depending on these measurements, the slurry may be given more or less acid.
    All data communication on the system is managed through the ECU, Electronic Communication Unit, 29 and is controlled by an operator interface system which is controlled from the terminal unit 31. The terminal unit 31 can either be integrated into the tractor's existing interface system or retrofitted.
    A fleet management unit 33 can be further installed in the system to improve documentation. The fleet management system 33 may contain a positioning system, telecommunications capability and logging function, monitor the operation and store the information on a map and send the data Online to a server which provides the necessary documentation to the authorities.
    FIG. 2 shows another embodiment of a manure spreader / tanker 35. The manure spreader / manure tanker has at the rear end CAFS equipment 37 for injecting air into the manure. It should be emphasized that CAFS equipment 37 may also be arranged elsewhere on the slurry spreader / slurry tanker 37, as may other types of foam generating means. The slurry spreader / slurry tanker 37 is further equipped with a beam 39 having four nozzles 41. However, the beam may comprise more or fewer nozzles. From the nozzles 41, foam 43 is distributed at the site of application 9.
    Although not shown, the manure tanker / manure spreader 37 of FIG. 2 also includes all or some of the equipment described for the embodiment shown in FIG. First
    FIG. 3 shows an embodiment of the mobile system 1 comprising a different composition of components than shown in FIG. The mobile system 1 is mounted on a tractor 3 connected to a manure spreader / manure tanker carriage 5. A front tank 11 is arranged at the front of the tractor 3 and contains an acid tank in an enclosure secured with a door comprising rods 45. The front tank 11 further comprises a additional container on each side of the acid tank. In this illustration, only one of the additional containers 47 is visible. The additional container 47 may be filled with water for cleaning the pipes and / or the pipes 49 of the mobile system 1 or additives to be added to the slurry together with the acid. The water or additive can be filled directly into the additional container 47, or a smaller container containing the water or additive can be placed inside the additional container 47.
    A terminal unit 31, such as an Isobuster terminal, is arranged in the cab and can either be integrated into the tractor's existing interface system or retrofitted. In this way, all data communications can be operated from one area and the amount of acid mixed with manure can be controlled to achieve the most optimal fertilization. This can also be connected to GPS equipment coordinated with the knowledge of the earth to obtain the most optimal fertilization of this particular piece of land.
    The contents of the front tank 11 are connected via pipes and / or hoses 49 to the manure spreader / manure tanker 5, whereby acid is fed from the front tank 11 and to a static mixer 51 for mixing manure with acid. The mobile system further comprises a pH sensor 53 for controlling the amount of the injected acid. In this illustration, there is a pH sensor which measures the pH of the slurry before acid is added and continuously during the supply of acid. The supply of acid is either stopped automatically when a given pH is reached, correlated with a predetermined pH, or the user can manually stop the acid injection at a given pH. The life of the pH sensor 53 can be improved by purifying the pH sensor 53 with water from the additional vessel 47 at the end of the fertilization process.
    The amount of acid to be pumped into the slurry can also be determined by the flow meter 19 alone or in combination with the pH sensor 53.
    FIG. 4 shows a close-up view of the front tank 11 arranged at the front of the tractor 3. The enclosure with a gate with rods 45 is open and shows an opening where an acid tank can be arranged. Further shown is a dry coupling 55 which can be mounted on connecting pipes and hoses 49 in the system and to an acid hose 57 for mounting in the acid tank. A second dry coupling 59 is further provided on the second additional container 61 to enable the pipes and hoses 49 to be moved from the acid tank to the second additional container 61. Similarly, but not visible, there is a third dry coupling on the first 27 DK 2014 00014 U1 additional container 47, which allows the movement of the pipes and hoses 49 to be moved from the acid tank to the first additional container 47. The drying connections can preferably be locked to prevent the user from being accidentally damaged by the contents of the containers. .
    In addition, a GPS / wireless mobile telephone module 63, such as GPS / GSM, is arranged on the front tank 11 together with a first additional container 47. On the acid hose 57 is arranged a sensor 65 which records the contents of the acid tank. Sensors may also be present on the first 47 and other 61 additional containers to record their contents and presence.
    FIG. 5 shows a side view of the tractor 3 combined with a front tank 11 and a manure spreader / manure tanker 5. At the rear of the tractor 3 there is a fourth dry coupling 67 which connects the pipes and / or hoses 49 of the mobile system between the tractor 3 and the manure spreader / manure tanker 5. Furthermore, the three-point connection 69 between the front lift 11 and the tractor 3 is seen.
    FIG. 6 shows a top view of a front tank 11. Enclosed with a gate with rods 45 is closed and includes an acid tank 71. The first dry coupling 55 is seen between two of the rods 73, 75. In addition, a first additional container 47 and a second additional container 61 are shown. Enclosed with a gate with bars 45 provides sufficient support against damage to the acid tank 71 when closed, thus resulting in a safe way of carrying large amounts of acid.
    FIG. 7 shows a stable 77 comprising a slurry duct system 79, which is normally seen in housing for cows and cattle. The general principle of the mobile system can be applied to other housing systems, e.g. for pig stables, although the connection between the mobile system and the slurry channels may be slightly different.
    In this stable 77, the mobile system connected to a tractor 81 is driven into the stable 77, e.g. on the feed aisle 83. The crane arm 85 of the mobile system found on the slurry spreader / slurry tanker of the mobile system is lowered into the slurry in slurry channels 79 and acid is transferred from the front tank 87 of mobile system 81 via hoses and crane arm 85 into slurry 79 slurry. Due to the slurry flow in the slurry channels 79, all sludge in slurry channels 79 is mixed with acid entering the slurry channels from the mobile system. This reduces the emissions of e.g. ammonia directly and easily.
    FIG. 8 illustrates a crane arm 85 immersed in slurry 89 in a slurry channel or a front tank. The crane arm 85 comprises a three-way valve 93 for switching between slurry mixing or pumping of slurry to the slurry spreader / slurry tanker and a pump 91. In this illustration, the crane arm 85 pumps slurry from the slurry channel or front tank 95 past the three-way valve 93 and the static mixer 101 to 97. the manure channel or front tank along the arrows in the illustration. The acid from the mobile system is supplied to the slurry 89 via a hose 99 connected to the mobile system and thus the front tank.
    Alternatively, the faucet 85 further comprises a compressed air tube for oxidation 103 as well as an oxidation chamber 105 as shown in FIG. 9. Hereby acid is mixed with slurry 89 at three-way valve 93, after which the acid-mixed slurry 107 is transferred to the oxidation chamber 105, where the acid-mixed slurry 107 is oxidized to optimize the action of the acid.
    As a further alternative to FIG. 8 and 9, slurry 89 is pumped from the slurry channel or front tank, as shown in FIG. 10, into the slurry spreader / slurry tanker in the mobile system connected e.g. a tractor where it is oxidized by recycling in the tanker and by supplying oxygen via a compressor. Slurry 89 is then returned to the slurry channel or front tank through the crane arm 85 in a direction opposite to the arrows 109 until it reaches the three-way valve 93, where the three-way valve 93 is switched to pass the oxidized slurry past the static mixer 101. Acid is supplied to the slurry via hose 99. either before or after slurry 89 has been oxidized in slurry spreader / slurry tanker.
    权利要求:
    Claims (17)
    [1]
    A mobile slurry / slurry emission reduction system, such as liquid manure, wherein the mobile system is mounted on a mobile unit and comprises: a slurry tanker / slurry in liquid communication means for supplying / injecting an acid into the slurry, wherein the slurry tanker The / diffuser and / or means for supplying / injecting an acid into the slurry are associated with distribution means for allowing slurry with reduced emission to be placed at the site of application, characterized in that the means for supplying / injecting an acid into the slurry comprises a acid tank, where the acid tank is arranged as a front tank on the mobile unit.
    [2]
    Mobile emission reduction system from a slurry according to claim 1, characterized in that the front tank is shielded by an enclosure.
    [3]
    Mobile emission reduction system from a slurry according to any one of the preceding claims, characterized in that the mobile system further comprises one or more pH sensors.
    [4]
    Mobile emission reduction system according to any one of the preceding claims, characterized in that the mobile system further comprises at least one additional tank, wherein the at least one additional tank is arranged next to the front tank, preferably integrated in the enclosure.
    [5]
    Mobile emission reduction system according to any one of the preceding claims, characterized in that the mobile system further comprises one or more sensors capable of measuring the amount of nitrogen, phosphorus and / or potassium in the slurry. .
    [6]
    Mobile emission reduction system according to any one of the preceding claims, characterized in that the mobile system further comprises a GPS unit with a log function or a GPS unit with a log function and a wireless mobile telephone connection. 30 DK 2014 00014 U1
    [7]
    Mobile emission reduction system according to any one of the preceding claims, characterized in that the mobile system further comprises foam generators, which foam generators convert the slurry to foam, preferably using a compressed air foaming system or an air suction foam system, and wherein the foam generators are arranged in connection with the distribution / spreading members.
    [8]
    Mobile system for reducing emission from a slurry according to any one of the preceding claims, characterized in that the mobile system further comprises connecting means for transporting the acid from the mobile system to the slurry in a slurry channel or a front tank.
    [9]
    Automatic pH sensor system, comprising a mobile system according to any one of the preceding claims 1-8, characterized in that the automatic pH sensor system further comprises a pH sensor, which pH sensor is arranged in connection with a slurry in a slurry channel or a front tank where the pH sensor measures a pH value of the slurry and wherein the pH sensor is further connected to a warning system, which warning system comprises a computer unit.
    [10]
    A process for reducing volatile matter emissions, such as ammonia, from slurry with a mobile system according to any one of claims 1-9, characterized in that the method comprises the following steps: c) feeding acid from a mobile unit's front tank; d) supply of the acid to the slurry to form an emission-reducing substance.
    [11]
    Process for reducing volatile matter emissions according to claim 10, characterized in that the amount of acid added to the slurry is calculated by a computer unit based on and preferably continuously adjusted with one or more pH measurements obtained with one or more pH sensors. .
    [12]
    A process for reducing the emission of volatiles according to any one of claims 10-11, characterized in that an additive is added to the slurry or the emission-reduced substance after conversion of all slurry to the emission-reduced substance where the additive is oxygen, ozone, hydrogen peroxide, a ferrous sulfate solution or bacteria.
    [13]
    A process for reducing the emission of volatiles according to any one of claims 10-12, characterized in that the process comprises a further step in which the emission-reduced substance is transformed into foam.
    [14]
    A process for reducing the emission of volatiles according to any one of claims 10-13, characterized in that the emission-reduced substance is distributed / dispersed at a site of use.
    [15]
    A process for reducing the emission of volatiles according to any one of claims 10-13, characterized in that the method further comprises steps of conveying the acid to a slurry channel or a front tank.
    [16]
    Process for reducing volatile matter emissions according to claim 15, characterized in that the slurry is further oxidized.
    [17]
    A process for reducing volatile emissions according to claim 16, characterized in that the method comprises an automatic warning step, the automatic warning step comprising the sub-steps: d) measuring the pH of a slurry in a slurry channel, resulting in a pH value, e. ) communicating the pH to a computer unit; (f) alternatively correlating the pH with a threshold and informing a provider of acid treatment needs if the pH is above that threshold.
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    同族专利:
    公开号 | 公开日
    US20110000269A1|2011-01-06|
    EP2272315B1|2018-03-28|
    ES2675790T3|2018-07-12|
    EP2272316B1|2018-04-11|
    EP2272315A1|2011-01-12|
    PL2272316T3|2018-09-28|
    DK2272316T3|2018-07-09|
    EP2272316A2|2011-01-12|
    LT2272316T|2018-07-10|
    DK2272315T3|2018-07-09|
    EP2272316A3|2016-10-19|
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    法律状态:
    2015-01-09| UHB| Application (utility model) shelved due to non-payment|Effective date: 20141209 |
    优先权:
    申请号 | 申请日 | 专利标题
    EP09164626.5A|EP2272315B1|2009-07-06|2009-07-06|A system and apparatus for reducing emission from slurry|
    EP10153436.0A|EP2272316B1|2009-07-06|2010-02-12|A mobile system and apparatus for reducing emission and smell from slurry|
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