• 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:
    System for purifying slurry stored in a slurry pond comprising a pre-filtration stage (2), a filtration stage (3) and optionally a post-filtration stage (4), such that it is obtained from the passage of slurry through all these stages a liquid fraction that can be used for irrigation and other applications, and a solid fraction that is a high quality fertilizer, where the prefiltration stage comprises a solid/liquid separator (5), a sieve (7) and a centrifugal separator (11) connected in series; the filtration stage (3) comprises three tanks (14, 19, 26) connected in series with pumps (21, 28) and filters (22, 29) between them and aeration pipes (17, 23, 32) inside of each deposit (14, 19, 26); and the postfiltration step (4), if any, comprises a third filter (39) and a fourth pump (36). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2703975A1
    申请号:ES201930124
    申请日:2019-02-15
    公开日:2019-03-13
    发明作者:Usandizaga Jaime Maria Segovia
    申请人:Usandizaga Jaime Maria Segovia；
    IPC主号:
    专利说明:

    [0001]
    [0002]
    [0003]
    [0004] Field of the invention
    [0005] The present invention relates to a system for purifying slurry that avoids the use of chemicals in the purification of slurry and provides a component of high energy value avoiding soil contamination, using only mechanical treatments to slurry. The system object of the invention is applicable in the livestock sector.
    [0006]
    [0007] BACKGROUND OF THE INVENTION
    [0008] The bovine and porcine livestock sectors are of great economic importance, with a turnover exceeding 10,000 million euros. Spain with more than 30 million heads owns more than 20% of the cabin of the U.E.
    [0009]
    [0010] The bovine and porcine livestock sectors jointly generate more than 50 million m3 of slurry each year, many of which can be used in agriculture as fertilizer, but more than 30% are produced in areas that do not have nearby agricultural land or these they can not accept them; being, therefore, surplus.
    [0011]
    [0012] Odors and the emission of greenhouse gases are known problems in the routine management of slurry. In addition, the discharge of excess slurry gives rise to serious air and soil contamination, surface and groundwater, causing serious environmental and health problems for the population residing in areas of high livestock concentration.
    [0013]
    [0014] The environmental problems derived from slurry have given rise to various regulations that require the treatment of them, especially in the case of surpluses, either on the farm itself or in centralized plants.
    [0015]
    [0016] As we know, the biggest problem of slurry is its high concentration in nitrogen that makes it potentially dangerous for people to breathe and for the water masses in their environment. To reduce its pollutant load, biological processes are the most efficient at the cost of high energy consumption.
    [0017] The integral treatments that are required in areas with high levels of nitrogen usually have very high costs and sometimes represent a serious problem for the farmer if he has to assume all of them.
    [0018]
    [0019] Given the difficulty of making the development of a sector of enormous economic and social importance compatible with the EU's environmental requirements, the application of cogeneration for the treatment of slurry and its inclusion in the special electrical regime was allowed. This model resulted in the promotion of multiple facilities for the treatment of slurry in Spain and the birth of a business sector.
    [0020]
    [0021] At present, there are centralized plants that incorporate cogeneration and serve hundreds of livestock farms, which have more than one million heads of pigs. These plants contribute to the progress of the rural environment and solve the environmental problem of slurry in an efficient and economically viable way for the livestock sector.
    [0022]
    [0023] In the cogeneration plants, natural gas is burned to thermally dry the slurry and, with the residual heat of combustion, electrical energy is generated and sold and injected into the network.
    [0024]
    [0025] The cogeneration plants treated only 10% of the existing surpluses. They manage to convert and recycle the agronomic nutrients of excess slurry in about 100,000 t / a of organic-mineral fertilizers, replacing chemical fertilizers manufactured with non-renewable natural resources. In addition, they contribute to the reduction of the emission of greenhouse gases by some 700,000 tons of CO2 equivalent per year.
    [0026]
    [0027] Another way to treat slurry is through anaerobic digestion or biodigestion, which is a natural process by which organic matter is decomposed by specific bacteria, in the absence of oxygen, generating biogas (gas with high methane content). Although the treatment by biodigestion does not solve the environmental problems generated by the high concentration of nitrogen in slurry and its negative effects, resulting from its transformation into ammonia or nitrates, it provides great advantages in terms of odor reduction, stabilization and above all reduction of greenhouse gas emissions.
    [0028] In the state of the art it is known the document WO03089375A disclosing a sludge treatment apparatus caused by the treatment of cattle excretions, and more particularly, to an apparatus for treating sludge in an oxidized form and dissolved floating air which can be treated , continuously and automatically, the excretions of livestock with physical means, such as a device for solid-liquid separation and dehydration at high speed, a stirring device, an air supply device and a device for removing foams. Just as the system object of the invention perform a treatment of the sludge without using any chemical.
    [0029]
    [0030] The apparatus disclosed in the previous document is an apparatus of great technical complexity, which requires agitation and dehydration devices, which makes it desirable to obtain a system that also performs the purification of slurries but with simpler elements.
    [0031]
    [0032] Description of the invention
    [0033] The object of the invention is a system for purifying slurry stored in a slurry pond comprising a prefiltration stage, a filtration stage and optionally a postfiltration stage, such that a liquid fraction is obtained from the slurry passing through all these stages. that can be used for irrigation and other applications, and a solid fraction that is a high quality fertilizer.
    [0034]
    [0035] The prefiltration stage of the system for purifying slurry stored in a slurry pond comprises a solid / liquid separator where the slurry arrives from the slurry tank driven by a first pump; a sieve attached to the solid / liquid separator configured to retain particles larger than 50pm of the slurry; and a centrifugal separator configured to extract a solid fraction and a liquid fraction from the slurry.
    [0036]
    [0037] The filtering step of the system for purifying slurry stored in a slurry tank comprises a first tank attached to the centrifugal separator such that the first tank houses a first aeration pipe in the lower zone; a second tank connected by a first pipe to the first tank, with a second pump and a first filter connected to the first pipe, such that the second tank houses a second aeration pipe in the lower zone; a third deposit connected by a second pipe to the second tank with a third pump and a second filter, connected to the second pipe, so that the third pump is configured to extract the liquid fraction of the slurry water mixture from the second tank passing through the second filter, and where the third The tank houses a third aeration pipe in the lower zone; at least one compressor connected to at least one of the three aeration pipes, the compressor being configured to supply pressurized air to the aeration pipes; and an outlet pipe of the third tank configured to extract the liquid fraction of the content of the third tank from the third tank.
    [0038]
    [0039] The system for purifying slurry stored in a slurry tank object of the invention comprises a tank of clean water, connected to the first tank such that the first tank receives and mixes the liquid fraction of the slurry from the centrifugal separator and clean water driven by a Clean water pump from the clean water tank.
    [0040]
    [0041] The system for purifying slurry stored in a slurry tank object of the invention comprises a fourth pump connected to an outlet pipe of the third tank configured to drive the liquid fraction of the slurry mixture present in the third tank to an outlet pipeline. irrigation water.
    [0042]
    [0043] The system for purifying slurry stored in a slurry tank object of the invention comprises a postfiltration stage comprising a fifth pump connected to an outlet pipe of the third tank, the fifth pump being configured to capture the liquid fraction of the third tank and propel it to a third filter for its later exit through a purified water outlet.
    [0044]
    [0045] In the system for purifying slurry stored in a slurry tank object of the invention, the pre-filtration step comprises a first solid conduit attached to an outlet for solids of the sieve, such that the first solid conduit is configured to conduct the extracted solid fraction. in the sieve to the purine raft; and a second solid conduit configured to send the solid fraction of the slurry to the slurry pond from the centrifugal separator.
    [0046]
    [0047] In the system for purifying slurry stored in a slurry tank object of the invention, the filtration step comprises a first baipas from the first pump to a point past the first filter; a second baipas from the second bomb until a point past the second filter.
    [0048]
    [0049] In the system for purifying slurry stored in a slurry tank object of the invention, the postfiltration step comprises a third baipas from the fifth pump to a point after the third filter.
    [0050]
    [0051] In the system for purifying slurry stored in a slurry tank object of the invention, the second tank comprises a drain valve located in the lower part of the second tank.
    [0052]
    [0053] In the system for purifying slurry stored in a slurry tank object of the invention, the first filter and the second filter have an outlet configured to direct the waste generated during the filtration process to the slurry pond.
    [0054]
    [0055] In the system for purifying slurry stored in a slurry tank object of the invention, the third filter has an outlet configured to direct the waste generated during the filtration process to the slurry tank.
    [0056]
    [0057] The system for purifying slurry stored in a slurry tank object of the invention comprises a frame where the components are supported.
    [0058]
    [0059] In the system for purifying slurry stored in a slurry tank object of the invention, the tank of clean water rests on the frame.
    [0060]
    [0061] BRIEF DESCRIPTION OF THE DRAWINGS
    [0062] Next, a series of drawings that help to better understand the invention and that are expressly related to an embodiment of said invention that is presented as a non-limiting example thereof, will be described very briefly.
    [0063]
    [0064] Figure 1 represents a schematic view of the system for purifying purines object of the invention.
    [0065]
    [0066] Detailed description of the invention
    [0067] The object of the invention is a system for transforming slurry, whether bovine and / or porcine, into water for irrigation and natural organic fertilizer, thereby reducing the total nitrogen and other nutrients in more than 60% since they enter as slurry until they leave as water for irrigation.
    [0068]
    [0069] The system object of the invention is placed at the exit of a slurry pond (1) located in any bovine or porcine farm.
    [0070]
    [0071] The system object of the invention comprises three stages to purify slurry: a prefiltration (2), a filtration (3) and, if necessary or recommended, a postfiltration (4).
    [0072]
    [0073] In the prefiltration stage (2) and connected to the outlet of the slurry tank (1), the system comprises a solid / liquid separator (5) where the slurry driven by a first pump (6) arrives, such that the solid / liquid separator (5) is configured to eject the solid fraction to the outside and obtain a liquid fraction with up to 500 μm and total solids up to 100,000 mg / l.
    [0074]
    [0075] The solid / liquid separator (5), in the preferred embodiment of the invention, is a separate solid / liquid dam type, where the separation of the solid and the liquid takes place using the different specific gravity of the solid particles present in the slurry regarding the liquid part. The solid / liquid separator (5) comprises a 0.30 mm light sieve, a reinforced auger, a regulating gate and a solid plug detector.
    [0076]
    [0077] The prefiltration stage (2) comprises, following the solid / liquid separator (5), a sieve (7) configured to retain particles larger than 50pm of the slurry, ie the sieve (7) retains all those particles of between 500pm and 50pm.
    [0078]
    [0079] The sieve (7) of the system object of the invention, in the preferred embodiment of the invention, is a vibrating sieve of the known ones in the state of the art that performs a second step of the purification that has an opening of separation of the sieve mesh between 50pm to 300pm and spread over several levels.
    [0080]
    [0081] The sieve (7) has an outlet for slurry (8) and an outlet for solids (9) connected to a first solids conduit (10) such that the solid fraction obtained by the sieve (7) is again poured into the reservoir. the purines by the first conduction of solids (10).
    [0082] From the sieve (7), the slurry passes to a centrifugal separator (11), which also extracts a solid fraction and a liquid fraction from the slurry, such that the solid fraction returns to the slurry pond through a second solids pipe (12). and the liquid fraction is sent to the filtration stage (3) through an outlet of the centrifugal separator (13).
    [0083]
    [0084] In the filtration step (3) the system object of the invention comprises three tanks (5, 8, 11), where a treatment without chemical products is carried out to reduce the size of the solid particles of the slurry, and also a reduction is obtained of nitrogen, phosphorus and potassium present in the slurry leaving the centrifugal separator (11). The filtration step (3) achieves a reduction of nitrogen, phosphorus and potassium higher than 60% with respect to the levels that enter the slurry in the first pump (6).
    [0085]
    [0086] The filtration stage (3) comprises a first tank (14), connected to the centrifugal separator (11) and which can optionally also be connected to a tank of clean water (15) from where it receives clean water driven by a clean water pump (16) so that the first tank (14) produces a mixture of clean water from the tank of clean water (15) with the slurry from the centrifugal separator (11).
    [0087]
    [0088] The first tank (14) houses inside it a first aeration pipe (17), located in the lower area of the first tank (14), the first aeration pipe (17) being connected to a first compressor (18) that is configured to supply air at a pressure of up to 108 bar, which enters the interior of the first tank (14) with a flow rate of between 0.8 and 3 m3 / h.
    [0089]
    [0090] The air supplied by the first compressor (18) to the first aeration pipe (17) serves to carry out, if necessary, a first treatment of the slurry water mixture and to oxygenate said slurry mixture present in the first tank (14). ), such that the first aeration pipe (17) receives air from the first compressor (18) and introduces it into the lower zone of said first tank (14), when introducing this air that rises in the form of bubbles, the nitrogen that is present in the slurry water mixture, rises to the upper part of the first tank (14).
    [0091]
    [0092] This first tank (14) communicates with a second tank (19) by means of a first pipe (20) connected to the lower zone of the first tank (14), where it is it extracts the liquid fraction of the slurry water mixture, from which part of the nitrogen has already been released.
    [0093]
    [0094] To send the liquid fraction of the slurry mixture to the second tank (19), the filtration stage (3) comprises a second pump (21) suitable for waste water, with an operating flow rate between 2 and 25 m3 / h . The second pump (21) sends the liquid fraction of the slurry mixture water to the second tank (19) by passing it through a first filter (22).
    [0095]
    [0096] The first filter (22), in the preferred embodiment of the invention, comprises a series of self-cleaning filters with membranes of different sizes, placed in series. In an exemplary embodiment, there are four filters with membranes of 100, 80, 50 and 10 pm, to obtain a liquid fraction with a maximum of 100 mg / l of total solids.
    [0097]
    [0098] The second tank (19) aims to oxygenate again the liquid fraction leaving the first tank (14) that has already passed through the first filter (13).
    [0099]
    [0100] To realize the oxygenation of the liquid fraction of the slurry mixture inside the second tank (19), the second tank (19) houses inside it a second aeration pipe (23), located in the lower area of the second tank (19), the second aeration pipe (23) being connected to a second compressor (24) which is configured to supply air at a pressure of between 2 and 4 bar, which enters the interior of the second tank (19) with a flow from 2 to 25 m3 / h depending on the flow of liquid fraction entering the second tank (19) and the type of slurry to be treated.
    [0101]
    [0102] The second tank (19) comprises a drain valve (25), which is located in the lower part of the said second tank (19), so that it can be emptied thanks to the pressure of the liquid fraction of the tank. the water slurry mixture contained in the second tank (19).
    [0103]
    [0104] The second aeration pipe (23) blows air to the liquid fraction of the slurry mixture by oxygenating it in a similar way as it is done in the first tank (14).
    [0105]
    [0106] The filtration stage (3) comprises a third tank (26) connected to the second tank (19) by a second pipe (27), so that the liquid fraction of the slurry mixture water is extracted from the second tank (19) and sent to the third tank (26) by the second pipeline (27) by means of a second pump (28).
    [0107]
    [0108] The second pipe (27) is also connected to a second filter (29) so that the second pump (28) sends the liquid fraction of the slurry mixture water to the third tank (26) passing through the second filter (29).
    [0109]
    [0110] The second filter (29) is composed of at least one self-cleaning filter, and if more than one are placed in parallel.
    [0111]
    [0112] The filtering step (3) comprises:
    [0113] - a first dipstick (30) from the second pump (21) to a point past the first filter (22),
    [0114] - a second skip (31) from the third pump (28) to a point past the second filter (29).
    [0115]
    [0116] Both the first baipas (30) and the second baipas (31) are intended to facilitate the maintenance work of the first filter (22) and the second filter (29).
    [0117]
    [0118] The third reservoir (26) aims to oxygenate the liquid fraction of the slurry mixture salient water and fully filtered from the second filter (29), which since it has already gone through several stages of filtration is increasingly clean.
    [0119]
    [0120] To oxygenate the liquid fraction of the slurry mixture present in the third tank (26), the third tank (26) comprises a third aeration pipe (32) present in the lower zone of said third tank (26) connected to a third tank (26). compressor (33) that blows air inside the third tank (26) through the third aeration pipe (32).
    [0121]
    [0122] The system object of the invention can output the liquid fraction of the water slurry mixture obtained and treated in the third tank (26), for which the system object of the invention comprises a fourth pump (34) that drives the liquid fraction of the slurry water mixture to an irrigation water outlet pipe (35).
    [0123]
    [0124] However, the system object of the invention can also submit to the liquid fraction of the slurry mixture water obtained in the filtration step (3) to a final treatment where the quality of the liquid fraction is improved for its use in another purpose other than irrigation.
    [0125]
    [0126] To carry out the final treatment, the system object of the invention comprises a post-filtration stage (4), which comprises a fifth pump (36) connected to an outlet pipe (37) of the third tank (26), which captures the water and the drives a third filter (38), for its later exit through a purified water outlet (41).
    [0127]
    [0128] The postfiltration stage (7) comprises a third muffle (39) that connects the output of the fifth pump (36) with a point after the third filter (38), this third muffle (39) has the function of facilitating maintenance of the third filter (38).
    [0129]
    [0130] The slurry mixture leaving the third filter (38) can be sent to the tank of clean water (15), through which bottom is introduced and mixed with the water present in said tank of clean water (15).
    [0131]
    [0132] All the filters (22, 29, 38) of the system have an outlet so that the waste generated during the filtration process can be returned to the slurry pond (1) of the livestock farm.
    [0133]
    [0134] Likewise, all the filters (22, 29, 38) of the system object of the invention are filters, which in the preferred embodiment of the system that is the object of the invention, have a filter element that is a perforated drum with tissue, but can also to be filters type rings, of membrane to pressure, of mesh or erogación.
    [0135]
    [0136] The system object of the invention in one embodiment of the invention is supported by a frame (40) which makes it possible to move from one location to another.
    权利要求:
    Claims (1)
    [0001]
    1- System for purifying slurry stored in a slurry pond (1) characterized by comprising:
    - a prefiltration step (2) comprising:
    or a solid / liquid separator (5) where the slurry arrives from the slurry tank (1) driven by a first pump (6);
    or a sieve (7) attached to the solid / liquid separator (5) configured to retain particles larger than 50pm of the slurry;
    or a centrifugal separator (11) configured to extract a solid fraction and a liquid fraction from the slurry;
    - a filtration step (3) comprising:
    or a first tank (14) attached to the centrifugal separator (11), such that the first tank (14) receives in the lower zone a first aeration pipe (17);
    or a second tank (19) connected by a first pipe (20) to the first tank (14), with a second pump (21) and a first filter (22) connected to the first pipe (20), such that the second tank (19) houses a second aeration pipe (23) in the lower zone;
    or a third tank (26) connected by a second pipe (27) to the second tank (19) with a third pump (28) and a second filter (29), connected to the second pipe (27), so that the third pump (28) is configured to extract the liquid fraction of the slurry mixture from the second tank (19) through the second filter (29), and where the third tank (26) houses a third aeration pipe in the lower zone ( 32);
    or at least one compressor (18, 24, 32) connected to at least one of the three aeration pipes (17, 23, 32), the compressor (18, 24, 32) being configured to supply pressurized air to the pipes aeration (17, 23, 32);
    or an outlet pipe (37) of the third tank (26) configured to extract from the third tank (26) the liquid fraction of the content of the third tank (26).
    2- System for purifying slurry stored in a slurry tank (1) according to claim 1, characterized in that it comprises a postfiltration stage (20) that comprises a fifth pump (36) connected to an outlet pipe of the third tank (37), the fifth pump (36) being configured to capture the liquid fraction of the third tank (37) and propel it to a third filter (38) for its later exit through a purified water outlet (41).
    3- System for purifying slurry stored in a slurry tank (1) according to any of claims 1 to 2, characterized in that it comprises a tank of clean water (15), connected to the first tank (14), such that the first tank tank (14) receives and mixes the liquid fraction of the slurry from the centrifugal separator (11) and clean water driven by a clean water pump (16) from the clean water tank (15).
    4- System for purifying slurry stored in a slurry tank (1) according to any of claims 1 to 3, characterized in that it comprises a fourth pump (34) connected to an outlet pipe of the third tank (37) configured to drive the liquid fraction of the slurry water mixture present in the third tank (26) to an irrigation water outlet pipe (35).
    5- System for purifying slurry stored in a slurry tank (1) according to any of claims 1 to 4, characterized in that the pre-filtration stage comprises:
    - a first solids conduit (10) attached to a solids outlet (9) of the sieve (7), such that the first solid conduit (10) is configured to conduct the solid fraction extracted in the sieve (7) to the purine raft (1); Y
    - a second solid conduit (12) configured to send the solid fraction of the slurry to the slurry pond from the centrifugal separator (11).
    6- System for purifying slurry stored in a slurry tank (1) according to any of claims 1 to 5, characterized in that the filtering stage (3) comprises:
    - a first baipas (30) from the first pump (21) to a point past the first filter (22);
    - a second skip (31) from the second pump (28) to a point past the second filter (29).
    7- System for purifying slurry stored in a slurry tank (1) according to any of claims 4 to 6, characterized in that the postfiltration step (4) comprises a third skip (39) from the fifth pump (36) to a point after the third filter (38).
    8- System for purifying slurry stored in a slurry tank (1) according to any of claims 1 to 7, characterized in that the second tank (19) comprises a drain valve (25) located in the lower part of the said second tank (19)
    9. System for purifying slurry according to any of claims 1 to 8, characterized in that the first filter (22) and the second filter (29) have an outlet configured to direct the waste generated during the filtration process to the slurry pond (one).
    10. System for purifying purines according to any of claims 4 to 9, characterized in that the third filter has an outlet configured to direct the waste generated during the filtration process to the slurry tank (1).
    11- System for purifying slurry according to any of claims 1 to 10, characterized in that it comprises a frame (40) where the components are supported.
    12. System for purifying slurry according to claim 11, characterized in that the tank of clean water (15) rests on the frame (40).
    类似技术:
    公开号 | 公开日 | 专利标题
    CN100418908C|2008-09-17|Deeply sewage treating method and its device without mud discharging
    US20180079672A1|2018-03-22|Systems and Methods for Processing Biogas
    CN106882981A|2017-06-23|A kind of aquaculture excrement is dirty to concentrate method for innocent treatment
    ES2750549T3|2020-03-26|Cyclic, non-biological, portable wastewater treatment plant
    CN104310714B|2016-05-04|A kind of cultivation and system and technique thereof of butchering sewage processed
    CN105236551B|2017-08-29|A kind of fast filter bed decontamination of biological reactor tail gas system of soil
    CN104944711B|2016-09-07|Method for treating water based on aquatic ecosystem and device thereof
    CN101475288A|2009-07-08|Water circulation filtering system for aquiculture
    CN202558747U|2012-11-28|Human and animal excreta innocent treatment disposing device
    CN107082535A|2017-08-22|Livestock and poultry cultivation night soil biological treatment utilization process
    CN1258486C|2006-06-07|Process and apparatus for treating waste water
    CN105217898B|2017-10-17|A kind of Waste Water Treatment suitable for middle-size and small-size plant
    CN203904150U|2014-10-29|Fur animal excrement sewage treatment system
    ES2703975B2|2019-11-05|PURINE CLEANING SYSTEM
    WO2013171691A1|2013-11-21|A plant and a method for abating the amount of nitrogen of an organic waste from zootechnical farming
    CN205676333U|2016-11-09|A kind of system utilizing artificial wetland treatment slaughterhouse sewage
    CN102633418A|2012-08-15|Human and animal excreta innocent treatment device and method
    CN206279049U|2017-06-27|A kind of multi-stage sewage treatment device with recycling function
    CN107998746A|2018-05-08|A kind of aquaculture original position filter method and device
    CN201495136U|2010-06-02|Biological bed and constructed wetland system
    CN208029987U|2018-11-02|A kind of low-carbon zero-emission industrial circulating water cultivating system based on anaerobic denitrifying
    CN105152473A|2015-12-16|Culture waste water energy self circulation disposal system and method thereof
    CN205990322U|2017-03-01|New MBR integrated rural sewage disposal device
    KR100877588B1|2009-01-09|Apparatus for offensive odor treatment of thermophilic aerobic fermentation system
    CN108658209A|2018-10-16|The processing system of antibiotic in a kind of hydroxyl radical free radical mineralising sea-farming water
    同族专利:
    公开号 | 公开日
    ES2703975B2|2019-11-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2003089375A1|2002-04-15|2003-10-30|Kyung Won Kim|Apparatus for stock raising|
    ES2259257A1|2004-05-07|2006-09-16|Miguel Sierra Sanchez|Purines integral processing sequene comprises filtration, compaction homogenization and e.g. reverse osmosis|
    ES2308875A1|2005-11-21|2008-12-01|Bledeng, S.A.|System for the treatment of pork purines. |
    法律状态:
    2019-03-13| BA2A| Patent application published|Ref document number: 2703975 Country of ref document: ES Kind code of ref document: A1 Effective date: 20190313 |
    2019-11-05| FG2A| Definitive protection|Ref document number: 2703975 Country of ref document: ES Kind code of ref document: B2 Effective date: 20191105 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201930124A|ES2703975B2|2019-02-15|2019-02-15|PURINE CLEANING SYSTEM|ES201930124A| ES2703975B2|2019-02-15|2019-02-15|PURINE CLEANING SYSTEM|
    [返回顶部]