• 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:
    The production comprises a settling device suitable for the purification of liquid, which comprises a container which also has a gas diffusion assembly located near the bottom. Furthermore, the container is equipped with a drain. In the container, vacuum is established and maintained by a vacuum pump connected to the top of the container. The vacuum pump is connected directly via another connection line / pipe to an active carbon filter through which the gas / atmospheric air is filtered. The gas / atmospheric air extracted with the vacuum pump is heated by the vacuum pump and passed through the carbon filter, where the contaminants are bonded. The generation results in a reprocessing plant with higher removal of volatile organic components as well as certain gasoline and oil components, with lower operating costs, especially due to the higher lifetime of the activated carbon filters.
    公开号:DK201500039U1
    申请号:DK201500039U
    申请日:2015-03-12
    公开日:2015-07-10
    发明作者:Laugesen Henrik Nybro
    申请人:Kemic Vandrens As；
    IPC主号:
    专利说明:

    Device and use
    The invention relates to a dispensing device adapted to purify liquid, which repository comprises a container comprising a bottom and an oppositely situated top, and surrounding walls connecting the top and bottom, in which container the liquid to be purified is supplied through a conduit comprising a a gas diffusion assembly located near the bottom for supplying a gas / atmospheric air and the container is provided with a drain for draining the purified liquid and the settling system comprises a pump for establishing a negative pressure in the container, which pump is connected to a first connecting line to the is the area in the top of the container for extraction of the gas / air used to purify the liquid, which gas / air has the temperature T1, and that the settler also includes an active carbon filter for filtering the used gas / air.
    Disposal plants often use activated carbon filters as part of the purification process, especially if the raw water is contaminated with volatile organic components (VOCs), such as e.g. trichlorethylene, perchlorethylene, dichloroethene and vinyl chloride (TCE, PCE, DCE and VC). The active carbon filters in these plants function by passing the water through the carbon filter as one of the last parts of the purification process. Due. the large surface area of the activated charcoal (> 500m2 / g), certain substances are adsorbed into the surface and held by van der Waals forces and / or London bonds. Activated charcoal has some capacity for adsorption, which depends on which substances are adsorbed; eg. activated carbon has higher capacity against TCE and PCE, while the adsorption for their degradation products, DCE and VC, is significantly lower. The capacity of the carbon filters is significantly reduced due to the internal surfaces of the coal being blocked by water or biofilm. This has a decisive influence on the detention of DCE and VC. Therefore, the activated carbon filters need to be replaced periodically. This can stall the purification process, which is compensated for by having series of and / or parallel activated carbon filters. In most purification processes, the penetration of the various pollutants into the activated carbon filters is measured when a substance penetrates the first carbon filter, it is sent for regeneration / reactivation or destruction. The second activated carbon filter is then moved up to the first active carbon filter and a new one is inserted as the last active carbon filter. This way, a plant always has roughly the same overall adsorption capacity.
    However, it has been found that there are some disadvantages to this prior art. The cost of replacing activated carbon filters is especially a problem, as this can account for most of the operating costs in many plants. In addition, activated charcoal can be saturated with certain substances, so that the capacity is reduced considerably or even rendered useless, and therefore the coal must be replaced. The carbon filters in these plants only slightly remove the contamination of hydrocarbons and volatile gasoline and oil components, including benzene, toluene, ethylbenzene and xylenes (BTEX).
    From DE 9115967.9. a plant of the type mentioned in the introduction is known. The plant is complicated and resource-intensive, with the construction comprising elements for cooling the spent gas so that it condenses. The system thus includes both heat exchanger and capacitor, which helps to complicate and expensive the system.
    It is therefore an object of the invention to provide a reprocessing plant without the above disadvantages or at least to provide a useful alternative.
    The object of the invention is met by a repeater of the type specified in the preamble of claim 1, which is new in that the repeater comprises a second connection line connecting the pump directly to the active carbon filter, the second connection line of which the pump is in direct fluid connection with the active carbon filter. and that the settler is arranged for the spent gas / air to pass through the second connection line through the activated carbon filter and has a temperature T2 greater than T1 and that the activated carbon filter is adapted to filter the used gas / air when passing the spent gas / air through the activated carbon filter.
    In this way, it becomes possible to purify contaminated water for VOC, including TCE, PCE, DCE and VC, as well as certain volatile gasoline and oil components, including BTEX, by vacuum extraction, with subsequent purification of the now polluted gas / atmospheric air, in an activated carbon filter.
    The contaminated gas / air heated by the vacuum pump is fed directly to the activated carbon filter. Since the gas / air is heated to T2, which is around and at least 50 degrees above the gas / air in the container itself, the gas / air due to the higher temperature can carry much more moisture than if it had the lower temperature. No condensation occurs in the coal. As a result, water films do not block the pores of the activated carbon filter, and the capacity of the carbon filter is thereby substantially increased and can consequently also be used for a longer period of time than if the gas was not heated. This results in a significant financial saving.
    The process can be continuous or batch. The drainage of the purified water is typically connected to a pump. The gas supplied to the vessel - for example in the form of atmospheric air - is fed from the gas diffusion assembly through the liquid of the vessel and through the first connection line and the vacuum pump, to provide the spent gas and on to the activated carbon filter where the gas is purified.
    The temperature T1 in the container is usually at approx. 10-15 degrees Celsius and the gas / air temperature T2 when heated by the pump is about 80 degrees Celsius. However, temperatures may differ from these under non-normal conditions.
    It is noted that in most cases only atmospheric air will be used.
    The atmospheric air can be added to a suitable gas to improve the process. Addition of a suitable gaseous species can have a catalytic effect. In a few cases, it will be possible to make the process exclusively with a gas suitable for the process. Gas / atmospheric air is understood to mean the addition of atmospheric air or a gas or a combination thereof.
    As stated in claim 2, the spent gas / air which is extracted with the vacuum pump (8) for transport in the second connection line (19) is heated to T2 by the heat generated by the vacuum pump.
    The pump develops heat as it works. By using this heat to heat the used gas / air, it is partly achieved that the heat is used constructively and that the gas's capacity for absorbing moisture is increased due to the higher temperature of the gas.
    As set forth in claim 3, the gas diffuser assembly comprises an element with holes for providing gas bubbles in the liquid.
    The number of holes is preferably -100 holes / m2.
    As stated in claim 4, the reprocessing system comprises a flow meter connected to the supply and / or drain.
    As stated in claim 5, the deflector comprises a vacuum meter connected to the container and for measuring the pressure in the container.
    As set forth in claim 6, the gas diffusion assembly is supplied with gas / atmospheric air at a gas inlet line, the gas inlet line having a vacuum valve attached.
    The vacuum valve has on the outside the connection to the atmosphere and / or one or more controlled gas sources.
    As set forth in claim 7, the plant is adapted to be applied to various chemicals, including pH control chemicals, and / or the addition of iron and / or aluminum compounds to remove phosphorus and other organics.
    As stated in claim 8, the second connection line is connected to a lower part of the active carbon filter and a vent pipe is connected to a region of the active carbon filter opposite the second connection line, which region is the upper part of the active carbon filter.
    Hereby, the spent gas / air to be cleaned has the longest possible residence time in the activated carbon filter.
    As stated in claim 9, the vacuum in the container is greater than 0.08 bar, preferably greater than 0.10 bar.
    This is a particularly appropriate level when the system works with batch feeding. As mentioned, the system can also work continuously.
    The plant can also be used for chemical or biological purification.
    Further, it is advisable that the reprocessing plant be used in combination with biodegradation in the form of biomass and / or biofilm. It is achieved that the plant can purify the raw water for additional pollution components, including ammonium and hydrocarbons.
    Further, it is advisable for the settler to be used in combination with ultrasound to determine water levels and / or to remove deposits, including bicarbonates. This gives the advantage that: • by ultrasonic determination of the water level, the raw water supply and the clean water discharge can be controlled automatically and more precisely, which means that certain elements, including the flow meter, can be placed elsewhere in the plant or completely omitted.
    • By ultrasonic removal of deposits, the advantage is obtained that the reprocessing system is not stopped and / or reduced capacity.
    As mentioned, the production also relates to the use of the waste water purification plant for use as postal and / or process water.
    The production will then be explained in more detail with reference to the drawings, in which:
    FIG. Figure 1 shows a 3D model of a prototype of the repeater according to the invention
    FIG. 2 shows a schematic drawing of the repository in the same embodiment as in FIG. First
    FIG. 3 is an enlarged view of the area of FIG. 2 which is marked with III and located inside the container
    Referring to FIG. 1 and FIG. 2 showing a deflection plant 1, production will be explained in more detail. The plant 1 comprises a container 2 consisting of a top 16 and an oppositely located bottom 17 as well as a cylindrical wall 18 connecting the top and bottom. A liquid - here raw water - is passed through a liquid supply line 3 - a pipe - and a flow meter 12 in the upper part of the container 2, which records the amount of raw water supplied to the container 2. A drain 4 is drained into the bottom 17 of the container 2. the purified water. The drain 4 is connected to a pump 5 located outside the container and the water leaves the system through a clean water outlet 15 in the form of a pipe. The liquid supply line 3 together with the drain 4 and the pump 5 maintain a constant level of the liquid mirror in the container 2.
    A gas inlet conduit 7 (a pipe) conducts gas / atmospheric air into the bottom of the container 2 to a gas diffusion system 14, which is further shown in FIG. 3. The gas inlet 7 has at its top a valve 13 which controls the gas inlet.
    In the top 16 of the container 2 is mounted a tube called first outlet conduit 6, which is in fluid communication with the interior of the container 2 via a vacuum meter 11. The tube 6 is connected at its opposite end to a vacuum pump 8.
    The vacuum pump 8 creates a negative pressure in the container 2, which results in atmospheric air being sucked in through the gas supply line 7, through the gas diffuser 14 and up through the container. Then the spent gas / air - that is, the now polluted air / gas container 2 leaves through the first connection line 6 and is sucked into the vacuum pump 8. The used gas / air has a temperature T1 which is typically about 10-15 degrees Celsius before it when the vacuum pump 8. The vacuum pump develops heat during its work, and this heat heats the gas / air to a temperature T2 greater than T1. Typically, T2 is about 80 degrees Celsius. Then the spent gas / air is passed through another connecting line 19 - a pipe - to an active carbon filter 9. The gas / air is fed into the bottom 20 of the filter, while an outlet is provided opposite this input in the upper part of the active carbon filter - a vent pipe. , through which the gas / air purified by the activated carbon filter leaves plant 1 into the atmosphere. The vacuum meter 11 measures the pressure in the container 2. The pressure can be adjusted with the vacuum valve 13. The purified water leaves the container through the drain 4 and is pumped further by the pump 5 out through the clean water outlet 15.
    FIG. 3 is an enlarged view of the area of FIG. 2, which is marked with III and located inside the container 2. It shows the gas diffusion assembly 14 which is visible in the bottom 17 of the container 2 and attached to the end of the gas inlet 7.
    By vacuum extraction, the plant can remove VOC and certain volatile oil and gasoline components such as BTEXs. The vacuum extraction is effected by the vacuum pump 8 creating a negative pressure in the container 2. As mentioned above, a gas diffusion assembly 14 is connected, which here is connected to the atmosphere via the vacuum valve 13. The gas diffusion assembly 14 comprises an element with holes having a such size that the gas bubbles provided become relatively large, primarily so large that they do not collapse in the container 2, thereby saturating it with nitrogen, as nitrogen in the water reduces the transition of the pollution components to the gas phase.
    The vacuum pump 8 may advantageously be a ring chamber blower or capsule blower, since the heat from these is suitable for heating the activated carbon files 9, which will extend the life of the filter and thus reduce the operating costs.
    As mentioned, from the container 2, the now polluted (used) gas / air is passed through the vacuum pump 8 and then through the carbon filter 9, where most of the pollution components are bonded. The purified gas / air can now be directed back into the atmosphere, but can possibly. used for heating other processes before.
    The retention time in the container 2 is controlled by the flow meter 12, located at the liquid supply line 3, and by the pump 5, located at the drain 4. The retention time can be varied so that the purification is optimized and the operating costs are reduced, depending on the contaminated water, so that the operating costs are reduced. In the case of less polluted water, the operating costs can be further reduced by not passing the gas through the activated carbon filter 9, since the contaminants have been diluted so much by the vacuum extraction that they no longer exceed the limit values.
    The water purified in the repository 1 can be contaminated groundwater that is pumped up from the subsurface, purified and diverted or recycled upon permission. It will be primarily through groundwater purification that active carbon filter 9 can be omitted. The raw water can also be wastewater from various industrial processes, where you will typically see significantly higher pollution.
    In most cases, for both groundwater and wastewater treatment, the preferred process type choice will be continuous, but e.g. Undercarriage handlers can benefit from a smaller batch plant as these do not have a continuous supply of wastewater.
    In many situations, the repeater 1 can be combined with or extended by other purification methods, including biological, chemical and ultrasonic cleaning.
    The biological purification will primarily be for the removal of various organic substances, which will typically be done by the contaminated water moving through a layer of rock on which there is a biofilm. This may advantageously be placed before the deflector 1 as this removes nitrogen from the water. Further biological purification can be done with biomass, including activated sludge. This portion of the purification will primarily convert ammonium to nitrate and then to nitrogen, through a combination of aerobic and anaerobic processes, and may advantageously be placed after the repository 1. The plant can also be provided with liquid bioblocks in the container, thereby further stimulating the biological purification.
    The chemical purification will primarily account for the removal of phosphorus, but also other organic substances. Typically, iron or aluminum compounds which precipitate with the phosphorus as heavy-soluble compounds will be added.
    The ultrasonic cleaning will primarily account for the removal of certain heavy-soluble bicarbonates, which may otherwise settle on the gas diffusion assembly 14, on the inside of the container 2, and various pipes in the system 1 and, in the worst case, block flow.
    The repository 1 can also be used to purify anything other than water. Here, the primary area of application will be industry with processes where a solvent must be purified prior to recycling and where the contamination in the solvent is more volatile than and not readily soluble in the solvent.
    In purifying water or other liquids, the vacuum valve 13 may be connected to one or more controlled gas sources, in order to vary which gas types bubble the container 2, to increase vacuum extraction and / or activate / prevent other processes. Thus, atmospheric air and / or a gas suitable for the process is supplied.
    The plant 1 can be constructed as two parallel columns 2 (batch containers), where the process column cleans approx. 225 In groundwater while emptying or filling the second container 2 respectively. The process can be started when the column 2 is filled with groundwater, and it can be terminated variably after the desired treatment time is obtained in the process vessel 2. The purification process works by applying air / gas through the nozzle system 14 in the columns during the filling of the system 2. bottom 17 while applying a vacuum through the pump 8 when the column is filled with groundwater to be purified. Thereby, an effective stripping of the water is obtained while at the same time evaporating volatile solvents in the air form by degassing the water column and replacing the air over the water phase.
    The system can also be built as a continuous-acting system.
    Test purges with a vacuum of 0.3 bar, 0.2 bar and 0.12 bar have been performed, respectively. At underpressures of less than 0.08 bar, it is found that there is a risk of water entering the water separator, as large vents were generated which carried water / air bubbles further into the water separator.
    It has been shown that the removal rate is inversely proportional to the vacuum in column 2, the highest removal rates being measured at a vacuum of 0.12 bar, where the content of the substance TCE is reduced to more than 99.9%, while the content of the substance cis-1.2 DCE is reduced to between 98.4-98.9% after 13 minutes of treatment time. Attempts have also been made to heat the water between 2.5-5 ° C, which increases the purity by an additional approx. 2 0 / / 0.
    权利要求:
    Claims (10)
    [1]
    A filler system (1) adapted to purify liquid, said filler system comprising a container (2) comprising a bottom and an oppositely located top as well as surrounding walls connecting the top and bottom, in which container the liquid to be purified is fed through a conduit. (3), said container (2) comprising a gas diffusion assembly (14) located near the bottom pre-supply of a gas / atmospheric air and said container (2) being provided with a drain (4) for draining said purified liquid and said repellent system ( 1) comprises a pump (8) for establishing a negative pressure in the container (2), which pump (8) is connected to a first connecting line (6) and is an area in the top of the container (2) for extracting it to purify the liquid. used gas / air, which gas / air has the temperature T1, and that the settler (1) also comprises an active carbon filter (9) for filtering the spent gas / air which is new in that the settler comprises a second connection line (19) which past the pump (8) is directly connected to the active carbon filter (9), at which second connecting line (19) the pump (8) is in direct fluid communication with the active carbon filter (9) and the settling device (1) is arranged to use it. gas / air when passing through the second connection line (19) passes through the activated carbon filter (9) and has a temperature T2 greater than T1, and the active carbon filter (9) is arranged to filter the used gas / air at passage of the spent gas / air through the activated carbon filter (9).
    [2]
    Discharge system (1) according to claim 1, which is new in that the used gas / air extracted with the vacuum pump (8) for transport in the second connection line (19) is heated to T2 by the heat generated by the vacuum pump.
    [3]
    Disposal system (1) according to claim 1 and / or claim 2 which is new in that the gas diffuser assembly (14) comprises an element with holes for providing gas bubbles in the liquid.
    [4]
    A repeater (1) according to one or more of claims 1 -3 which is new in that the repeater comprises a flow meter (12) connected to the conduit (3) and / or drain (4).
    [5]
    Disposal system (1) according to one or more of claims 1 to 4, which is new by including a vacuum meter (11) connected to the container (2) and for measuring the pressure in the container (2).
    [6]
    Discharge system (1) according to one or more of claims 1-5 which is new in that the gas diffuser (14) is supplied with gas / atmospheric air at a gas supply line, which gas supply line (7) has a vacuum valve (13) attached.
    [7]
    7. Discharge system (1) according to one or more of claims 1 to 6 which is new in that the system is adapted to be applied to various chemicals, including chemicals for pH regulation, and / or addition of iron and / or aluminum compounds to removal of phosphorus and other organic substances.
    [8]
    Disposal system (1) according to any one of the preceding claims, which is new in that the second connection line (19) is connected to a lower part (20) of the active carbon filter (9) and that a vent pipe (10) is connected to a region of the active carbon filter (9) opposite the second connecting line (19), said region being an upper portion (21) of the active carbon filter (9).
    [9]
    Disposal system (1) according to any preceding claim which is new in that the vacuum in the container is greater than 0.08 bar, preferably greater than 0.10 bar.
    [10]
    Use of a disposal plant (1) according to one or more of claims 1-9 for the purification of liquids, including water which is subsequently used as postal and / or process water.
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    同族专利:
    公开号 | 公开日
    DK201500039Y3|2015-07-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DK201400176|2014-03-28|
    DKPA201400176|2014-03-28|
    DK201500039U|DK201500039Y3|2014-03-28|2015-03-12|Disposal systems designed for the purification of liquids and their use|
    DK201500039|2015-03-12|DK201500039U| DK201500039Y3|2014-03-28|2015-03-12|Disposal systems designed for the purification of liquids and their use|
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