CN115784504A - High-efficient deoiling device of meal kitchen waste water - Google Patents
High-efficient deoiling device of meal kitchen waste water Download PDFInfo
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- CN115784504A CN115784504A CN202211505818.XA CN202211505818A CN115784504A CN 115784504 A CN115784504 A CN 115784504A CN 202211505818 A CN202211505818 A CN 202211505818A CN 115784504 A CN115784504 A CN 115784504A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000010806 kitchen waste Substances 0.000 title claims description 17
- 235000012054 meals Nutrition 0.000 title claims description 3
- 238000000926 separation method Methods 0.000 claims abstract description 36
- 239000004519 grease Substances 0.000 claims abstract description 24
- 239000002351 wastewater Substances 0.000 claims abstract description 24
- 238000004062 sedimentation Methods 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 239000010802 sludge Substances 0.000 claims abstract description 12
- 239000003921 oil Substances 0.000 claims description 91
- 238000003860 storage Methods 0.000 claims description 25
- 238000004140 cleaning Methods 0.000 claims description 17
- 239000000919 ceramic Substances 0.000 claims description 16
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 15
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 14
- 238000011010 flushing procedure Methods 0.000 claims description 10
- 150000002500 ions Chemical class 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 6
- 238000004065 wastewater treatment Methods 0.000 abstract description 10
- 244000005700 microbiome Species 0.000 abstract description 8
- 238000005188 flotation Methods 0.000 abstract description 7
- 238000001035 drying Methods 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 230000003851 biochemical process Effects 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000011001 backwashing Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000007667 floating Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000005238 degreasing Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000703 high-speed centrifugation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
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Abstract
The invention relates to the technical field of kitchen wastewater treatment, and discloses a kitchen wastewater high-efficiency oil removal device which comprises a water inlet system, a filtering system, a primary air flotation system, a secondary air flotation system, a high-efficiency sedimentation tank, a high-efficiency oil removal device and a biochemical system which are sequentially connected, wherein the sludge discharge end of the high-efficiency sedimentation tank is connected with a drying system, and the high-efficiency oil removal device is connected with a grease drying and recycling system; the efficient oil removing device for kitchen wastewater provided by the invention solves the problems that the oil-water separation of the existing kitchen wastewater is not thorough, and microorganisms cannot absorb oxygen after oil wraps the microorganisms, so that a biochemical process section is unstable in operation, and finally, effluent cannot stably reach the standard and reach the discharge amount.
Description
Technical Field
The invention relates to the technical field of kitchen wastewater treatment, in particular to a high-efficiency kitchen wastewater oil removal device.
Background
The kitchen waste biogas slurry belongs to high-concentration and high-grease wastewater, the treatment process is complex, grease removal amount is limited due to biochemical reaction, excessive grease enters a biochemical system to cause death of activated sludge, a large amount of bubbles can be generated due to increase of a surfactant in a biochemical pool, the high-grease wastewater usually needs to enter the biochemical system after being pretreated and deoiled, whether grease separation is thorough or not directly affects the subsequent treatment process of the kitchen wastewater, the treatment efficiency of the wastewater is affected, and otherwise, the effluent is discharged after reaching the standard and is difficult to guarantee.
The existing kitchen wastewater treatment system is not thorough in oil-water separation, so that microorganisms cannot absorb oxygen after the microorganisms are wrapped by grease, the operation of a biochemical process section is unstable, and finally, effluent cannot be stably discharged in a standard reaching amount.
Disclosure of Invention
The invention aims to provide a high-efficiency oil removing device for kitchen wastewater, which is used for solving at least one problem in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a high-efficient deoiling device of kitchen waste water, is including the water intake system, filtration system, one-level air supporting system, second grade air supporting system, high-efficient sedimentation tank, high-efficient deoiling device and the biochemical system that connect gradually, the mummification system is connected to the sludge discharge end of high-efficient sedimentation tank, high-efficient deoiling device is connected with grease mummification recovery system.
Kitchen waste water oil content is very high, must carry out oil-water separation before advancing biochemical system and handle, filtration system's setting in this design, can intercept a large amount of suspended solids and impurity, later get into one-level air supporting system, carry out first deoiling, get into second grade air supporting system again and carry out oil-water separation, later go out water and deposit through high-efficient sedimentation tank high efficiency, deposit partly inorganic matter etc., carry out degree of depth deoiling through high-efficient deoiling device again and handle, it gets into biochemical system to go out water, high-efficient deoiling device's concentrate gets into grease mummification recovery system and carries out recycle, realize the utilization of grease, the bed mud of high-efficient sedimentation tank gets into the mummification system, carry out the mummification and handle. In conclusion, the technical scheme utilizes a new combined process, and solves the problems that the oil-water separation of the existing kitchen wastewater is not thorough, the subsequent process treatment is unstable after the microorganisms are wrapped by grease, and the effluent cannot reach the discharge standard.
To sum up, this technical scheme not only can satisfy the discharge purpose that kitchen waste water reaches standard volume, can realize moreover carrying out further recycle to the dense fluid of high-efficient deoiling device output, when having ensured kitchen waste water treatment effect, through the utilization to the resourceful utilization of grease can furthest's promotion kitchen waste water treatment's economic benefits.
Furthermore, in order to improve the efficient oil removal effect, the efficient oil removal device is a silicon carbide film efficient oil removal device or a ceramic film efficient oil removal device.
Furthermore, for better realization to the self-cleaning of high-efficient deoiling device, lifting means's automatic maintenance efficiency, the high-efficient deoiling device of carborundum film or the high-efficient deoiling device of ceramic membrane all are connected with self-cleaning system.
Furthermore, the automatic cleaning system comprises an automatic cleaning pipeline, a water storage tank, a gas storage tank and an air compressor, wherein the automatic cleaning pipeline is sequentially connected with the water storage tank, the gas storage tank and the air compressor.
Further, be equipped with first control valve on the pipeline between water storage tank and the gas holder, be equipped with the second control valve on the pipeline between gas holder and the air compressor machine, the input of high-efficient deoiling device is equipped with the water intaking valve, and the input of high-efficient deoiling device is connected with first back flush pipeline, be equipped with the third control valve on the first back flush pipeline, the output of high-efficient deoiling device is equipped with the outlet valve, and the output of high-efficient deoiling device is connected with second back flush pipeline, be equipped with the fourth control valve on the second back flush pipeline.
After the high-efficiency silicon carbide film oil removal device or the ceramic film oil removal device is used for a long time, the filtering effect is reduced, the high-efficiency silicon carbide film oil removal device or the ceramic film oil removal device needs to be cleaned, the water inlet valve and the water outlet valve are closed, the first control valve, the second control valve, the third control valve and the fourth control valve are opened, air is compressed into the air storage tank through the air compressor, then backwashing is carried out on the high-efficiency silicon carbide film oil removal device or the ceramic film oil removal device through the water storage tank, and backwashing water is discharged through the third control valve.
Further, the first-stage air floatation system adopts a first-stage shallow ion air floatation system.
Further, the secondary air floatation system adopts a secondary rectangular ion air floatation system. The rectangular ion air floatation system has the advantages of electricity consumption saving, convenient operation and simple and convenient management.
Furthermore, the filtering system comprises an oil separation tank, and an oil and mud scraper is arranged in the oil separation tank.
Further, the oil separation tank is a horizontal flow type oil separation tank.
The invention has the beneficial effects that: kitchen waste water oil content is very high, must carry out oil-water separation before advancing biochemical system and handle, filtration system's setting in this design, can intercept a large amount of suspended solids and impurity, later get into one-level air supporting system, carry out first deoiling, get into second grade air supporting system again and carry out oil-water separation, later go out water and deposit through high-efficient sedimentation tank high efficiency, deposit partly inorganic matter etc., carry out degree of depth deoiling through high-efficient deoiling device again and handle, it gets into biochemical system to go out water, high-efficient deoiling device's concentrate gets into grease mummification recovery system and carries out recycle, realize the utilization of grease, the bed mud of high-efficient sedimentation tank gets into the mummification system, carry out the mummification and handle. In conclusion, the technical scheme utilizes a new combined process, and solves the problems that the oil-water separation of the existing kitchen wastewater is not thorough, the subsequent process treatment is unstable after the microorganisms are wrapped by grease, and the effluent cannot reach the discharge standard.
To sum up, this technical scheme not only can satisfy the discharge purpose that kitchen waste water reaches standard volume, can realize moreover carrying out further recycle to the dense fluid of high-efficient deoiling device output, when having ensured kitchen waste water treatment effect, through the utilization to the resourceful utilization of grease can furthest's promotion kitchen waste water treatment's economic benefits.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the working principle of the present invention;
fig. 3 is a schematic structural view of an oil interceptor of the present invention.
In the figure: a water intake system 1; a filtration system 2; an oil separation tank 2.1; 2.2 of oil and mud scraping machine; a sludge collection groove 2.3; an oil collecting pipe 2.4; a primary air flotation system 3; a secondary air flotation system 4; a high-efficiency sedimentation tank 5; a high-efficiency oil removal device 6; a first control valve 8; a second control valve 9; a water inlet valve 10; a first backwash conduit 11; a third control valve 12; a water outlet valve 13; a second backwash conduit 14; a fourth control valve 15.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the embodiments or the description in the prior art, it is obvious that the following description of the structure of the drawings is only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
Example 1:
as shown in fig. 1-fig. 3, this embodiment provides a high-efficiency oil removing device for kitchen wastewater, which includes a water inlet system 1, a filtering system 2, a primary air flotation system 3, a secondary air flotation system 4, a high-efficiency sedimentation tank 5, a high-efficiency oil removing device 6, and a biochemical system, which are connected in sequence, wherein a sludge discharge end of the high-efficiency sedimentation tank 5 is connected to a drying system, and the high-efficiency oil removing device 6 is connected to a grease drying and recycling system.
Kitchen waste water oil content is very high, must carry out oil-water separation before advancing biochemical system and handle, the setting of filtration system 2 in this design, can intercept a large amount of suspended solids and impurity, later get into one-level air supporting system 3, carry out first deoiling, it carries out oil-water separation once more to get into second grade air supporting system 4 again, later go out water through high-efficient sedimentation tank 5 high-efficient sediment, deposit partly inorganic matter etc., carry out degree of depth deoiling through high-efficient deoiling device 6 again and handle, it gets into biochemical system to go out water, high-efficient deoiling device 6's dense solution gets into mummification grease recovery system and carries out recycle, the realization is to the utilization of grease, the bed mud of high-efficient sedimentation tank 5 gets into the mummification system, carry out the mummification and handle. In conclusion, the technical scheme utilizes a new combined process, and solves the problems that the oil-water separation of the existing kitchen wastewater is not thorough, the subsequent process treatment is unstable after the microorganisms are wrapped by grease, and the effluent cannot reach the discharge standard.
To sum up, this technical scheme not only can satisfy the discharge purpose that kitchen waste water reaches standard volume, can realize moreover carrying out further recycle to the dense fluid of high-efficient deoiling device output, when having ensured kitchen waste water treatment effect, through the utilization to the resourceful utilization of grease can furthest's promotion kitchen waste water treatment's economic benefits.
Example 2:
this embodiment is optimized based on embodiment 1 described above.
In order to improve the efficient oil removing effect, the efficient oil removing device 6 is a silicon carbide film efficient oil removing device or a ceramic film efficient oil removing device. In order to better realize the automatic cleaning of the high-efficiency oil removing device 6 and improve the automatic maintenance efficiency of equipment, the high-efficiency silicon carbide film oil removing device or the high-efficiency ceramic film oil removing device is connected with an automatic cleaning system.
The membrane material in the ceramic membrane efficient degreasing device is a honeycomb ceramic membrane.
Compared with the traditional separation process, the high-efficiency silicon carbide film oil removing device has the advantages of high film separation precision, uniform pore size distribution, good wear resistance, stable operation and the like, can replace the traditional separation technologies such as a traditional plate frame and high-speed centrifugation, ensures the quality of filtrate, can maintain flux filtration through film flux, and reduces the cleaning frequency.
Example 3:
this example was optimized based on example 2 described above.
In order to achieve the automatic cleaning effect, the automatic cleaning system comprises an automatic cleaning pipeline, a water storage tank, a gas storage tank and an air compressor, and the automatic cleaning pipeline is sequentially connected with the water storage tank, the gas storage tank and the air compressor.
A first control valve 8 is arranged on a pipeline between the water storage tank and the air storage tank, a second control valve 9 is arranged on a pipeline between the air storage tank and the air compressor, a water inlet valve 10 is arranged at the input end of the efficient oil removing device 6, the input end of the efficient oil removing device 6 is connected with a first backwashing pipeline 11, a third control valve 12 is arranged on the first backwashing pipeline 11, a water outlet valve 13 is arranged at the output end of the efficient oil removing device 6, the output end of the efficient oil removing device 6 is connected with a second backwashing pipeline 14, and a fourth control valve 15 is arranged on the second backwashing pipeline 14.
After the silicon carbide film efficient oil removal device or the ceramic film efficient oil removal device is used for a long time, the filtering effect is reduced, the silicon carbide film efficient oil removal device or the ceramic film efficient oil removal device needs to be cleaned, at the moment, the water inlet valve 10 and the water outlet valve 13 are closed, the first control valve 8, the second control valve 9, the third control valve 12 and the fourth control valve 15 are opened, air is compressed into the air storage tank through the air compressor, then back flushing is carried out on the silicon carbide film efficient oil removal device or the ceramic film efficient oil removal device through the water storage tank, and back flushing water is discharged through the third control valve 12.
It should be noted that the flushing of the silicon carbide film high-efficiency degreasing device or the ceramic film high-efficiency degreasing device is performed each time the system is turned off, and when the system needs to be shut down in a normal startup operation state, a mode of first flushing and then shutting down is generally adopted. When the system is in failure, the system is automatically stopped, and a flushing program is also executed. The main purpose of the flushing is to prevent the deposition of contaminants in the percolate on the membrane surface. The washing is divided into two types, one is washing by percolate, the other is washing by pure water, and the time of the two types of washing can be set on an operation interface, generally 2-5 minutes.
In addition, when the membrane pressure difference of the high-efficiency silicon carbide membrane oil removal device or the ceramic membrane oil removal device exceeds a preset value, the automatic cleaning system can be automatically started to remove pollutants attached to the membrane surface and discharge the pollutants, so that the membrane surface can be effectively cleaned, and the high-efficiency oil removal device 6 can stably operate for a long time.
Example 3:
this embodiment is optimized based on embodiment 1 described above.
The first-stage air floatation system 3 adopts a first-stage shallow ion air floatation system, and the second-stage air floatation system 4 adopts a second-stage rectangular ion air floatation system. The rectangular ion air floatation system has the advantages of electricity consumption saving, convenient operation and simple and convenient management. As shown in fig. 3, the filtering system 2 includes an oil separation tank 2.1, an oil and mud scraper 2.2 is disposed in the oil separation tank 2.1, and the oil separation tank 2.1 is a horizontal flow type oil separation tank. The oily wastewater enters an oil separation tank 2.1 with a rectangular plane through a water distribution tank and slowly flows along the horizontal direction, an oil product floats up to the water surface in the flow, and the precipitated heavy oil and other impurities are deposited at the bottom of the tank. The sludge at the bottom of the pool is scraped into a sludge collecting groove 2.3 through the continuous rotary motion of the oil and sludge scraping machine 2.2, and the floating oil or the floating slag on the surface of the pool is scraped into an oil collecting pipe 2.4 to be discharged. The wastewater after oil separation treatment overflows into a drainage channel and is discharged out of the pool, and subsequent treatment is carried out to remove emulsified oil and other pollutants.
The working principle is as follows: the water inlet system 1 conveys oily sewage to an oil separation tank 2.1, oil-water separation is carried out in the oil separation tank 2.1, precipitated suspended matters sink to the bottom of the tank, the oil slicers 2.2 in the oil separation tank 2.1 scrape the floating oil to an oil collecting pipe 2.4, sludge is scraped to a sludge collecting tank 2.3, the floating oil is conveyed to a kitchen treatment system, the sludge is discharged into a scum tank, and clear liquid enters an intermediate water tank. Promote by the pump and get into one-level air supporting system 3 after the pond of middling is short for a short time stays, throw and throw PAC on the pipeline that gets into one-level air supporting system 3, throw PAM before getting into the air supporting pond, oil and suspended solid in the flotation further separation waste water through one-level air supporting system 3, the dross gets into the dross jar, the clear liquid flows automatically and gets into second grade air supporting system 4, PAC and PAM are thrown to one-level air supporting system 3 according to the water production condition of one-level air supporting system 3, strengthen oil-water separation in second grade air supporting system 4, get rid of partial suspended solid and organic matter simultaneously. Dross of 4 outputs of second grade air supporting system gets into the dross pond, the clear solution flows automatically and gets into air supporting clear solution pond, clear solution in the air supporting clear solution pond gets into high-efficient sedimentation tank 5 through pump pressurization, deposit partly inorganic matter etc., carry out degree of depth deoiling through high-efficient deoiling device 6 again and handle, filter through the membrane element, the aquatic colloid, impurity such as microorganism and particulate matter filters on the face of membrane, water after the filtration gets into biochemical system through the outlet pipe, high-efficient deoiling device 6's dense solution gets into grease mummification recovery system and carries out recycle, the realization is to the utilization of grease, the bed mud of high-efficient sedimentation tank 5 gets into the mummification system, carry out the mummification and handle. The design utilizes a new combined process, can ensure that the kitchen wastewater treatment can be operated efficiently, does not influence the quality of effluent water, and reaches the discharge standard.
Finally, it should be noted that: the above are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a high-efficient deoiling device of meal kitchen waste water which characterized in that: including water intake system, filtration system, one-level air supporting system, second grade air supporting system, high-efficient sedimentation tank, high-efficient deoiling device and the biochemical system that connects gradually, the mummification system is connected to the sludge discharge end of high-efficient sedimentation tank, high-efficient deoiling device is connected with grease mummification recovery system.
2. The efficient oil removing device for kitchen wastewater according to claim 1, characterized in that: the high-efficiency oil removing device is a silicon carbide film high-efficiency oil removing device or a ceramic film high-efficiency oil removing device.
3. The efficient oil removing device for kitchen wastewater according to claim 2, characterized in that: the high-efficiency silicon carbide film oil removing device or the high-efficiency ceramic film oil removing device is connected with an automatic cleaning system.
4. The efficient oil removing device for kitchen wastewater according to claim 3, characterized in that: the automatic cleaning system comprises an automatic cleaning pipeline, a water storage tank, a gas storage tank and an air compressor, wherein the automatic cleaning pipeline is sequentially connected with the water storage tank, the gas storage tank and the air compressor.
5. The efficient oil removing device for kitchen wastewater according to claim 4, characterized in that: the device comprises a water storage tank, a gas storage tank, a first control valve, a second control valve, a water inlet valve, a first back-flushing pipeline, a third control valve, a water outlet valve, a fourth control valve and a fourth control valve, wherein the first control valve is arranged on a pipeline between the water storage tank and the gas storage tank, the second control valve is arranged on a pipeline between the gas storage tank and the air compressor, the input end of the high-efficiency oil removal device is provided with the water inlet valve, the input end of the high-efficiency oil removal device is connected with the first back-flushing pipeline, the third control valve is arranged on the first back-flushing pipeline, the output end of the high-efficiency oil removal device is provided with the water outlet valve, the output end of the high-efficiency oil removal device is connected with the second back-flushing pipeline, and the fourth control valve is arranged on the second back-flushing pipeline.
6. The efficient oil removing device for kitchen wastewater according to claim 1, characterized in that: the first-stage air floatation system adopts a first-stage shallow ion air floatation system.
7. The efficient oil removing device for kitchen wastewater according to claim 1, characterized in that: the secondary air floatation system adopts a secondary rectangular ion air floatation system.
8. The efficient oil removing device for kitchen wastewater according to claim 1, characterized in that: the filtering system comprises an oil separation tank, and an oil and mud scraper is arranged in the oil separation tank.
9. The efficient oil removing device for kitchen wastewater according to claim 8, characterized in that: the oil separation tank is a horizontal flow type oil separation tank.
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CN204874210U (en) * | 2015-08-24 | 2015-12-16 | 华南农业大学 | Device of meal kitchen waste water is handled to flocculation air supporting - biological filter |
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CN107840530A (en) * | 2017-09-26 | 2018-03-27 | 上海晶宇环境工程股份有限公司 | Kitchen biogas liquor treating process and its special equipment |
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2022
- 2022-11-28 CN CN202211505818.XA patent/CN115784504A/en active Pending
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CN204874210U (en) * | 2015-08-24 | 2015-12-16 | 华南农业大学 | Device of meal kitchen waste water is handled to flocculation air supporting - biological filter |
CN205347131U (en) * | 2016-01-02 | 2016-06-29 | 湖南恒凯环保科技投资有限公司 | Food and beverage treatment of water regeneration system that gives up |
CN107840530A (en) * | 2017-09-26 | 2018-03-27 | 上海晶宇环境工程股份有限公司 | Kitchen biogas liquor treating process and its special equipment |
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Title |
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