CN216808506U - Kitchen and kitchen garbage and wastewater treatment system - Google Patents
Kitchen and kitchen garbage and wastewater treatment system Download PDFInfo
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- CN216808506U CN216808506U CN202220117859.0U CN202220117859U CN216808506U CN 216808506 U CN216808506 U CN 216808506U CN 202220117859 U CN202220117859 U CN 202220117859U CN 216808506 U CN216808506 U CN 216808506U
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- 239000010813 municipal solid waste Substances 0.000 title description 4
- 238000004065 wastewater treatment Methods 0.000 title description 3
- 239000010802 sludge Substances 0.000 claims abstract description 52
- 230000018044 dehydration Effects 0.000 claims abstract description 27
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 27
- 238000004062 sedimentation Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000010806 kitchen waste Substances 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 13
- 239000002351 wastewater Substances 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 14
- 239000010865 sewage Substances 0.000 claims description 12
- 238000005273 aeration Methods 0.000 claims description 11
- 238000000108 ultra-filtration Methods 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
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Abstract
The utility model discloses a treatment system for kitchen and kitchen waste and wastewater, which comprises four subsystems, namely a pretreatment system, a biochemical system, an advanced treatment system and a sludge treatment system, wherein the pretreatment system comprises a grid, an oil separation sedimentation tank, a high-density sedimentation tank and a regulating tank; the biochemical system comprises a UBF anaerobic reactor and a membrane bioreactor; the advanced treatment system comprises a Fenton fluidized bed and a Biological Aerated Filter (BAF); the sludge treatment system comprises a biochemical sludge centrifugal dehydration system and a chemical sludge plate-and-frame dehydration system; the system has high load processing capacity and adaptability to water quality change, the design of the processing system fully considers the fluctuation range of water quality and water quantity, and the water quality of outlet water is ensured to be basically stable on the premise of changing the water quality and the water quantity; the concentrated solution and the secondary pollution are not generated, and the problem that the concentrated solution of the traditional kitchen and kitchen waste water is difficult to treat is thoroughly solved.
Description
Technical Field
The utility model relates to an environment-friendly technology, in particular to a treatment system for kitchen and kitchen garbage wastewater.
Background
Kitchen and kitchen garbage has the following treatment difficulties: 1. the water quantity and the water quality of the kitchen and kitchen waste water fluctuate greatly along with seasons; 2. kitchen and kitchen waste water is often blocked and silted by a rear-end pipeline and a system due to high oil content and high SS; 3. the kitchen and kitchen waste water has high organic pollutant concentration (COD, total nitrogen and the like), and concentrated solution (secondary pollution) generated by membrane systems such as nanofiltration, reverse osmosis and the like cannot be thoroughly solved by the deep treatment of the current domestic mainstream kitchen and kitchen waste water treatment technology.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a treatment system for kitchen and kitchen waste and wastewater, which aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
a treatment system for kitchen and kitchen waste wastewater comprises four subsystems of a pretreatment system, a biochemical system, a deep treatment system and a sludge treatment system, wherein the pretreatment system comprises a grid, an oil separation sedimentation tank, a high-density sedimentation tank and a regulating tank; the biochemical system comprises a UBF anaerobic reactor and a membrane bioreactor; the advanced treatment system comprises a Fenton fluidized bed and a Biological Aerated Filter (BAF); the sludge treatment system comprises a biochemical sludge centrifugal dehydration system and a chemical sludge plate-frame dehydration system.
In the pretreatment system, a grid, an oil separation sedimentation tank, a high-density sedimentation tank and an adjusting tank are sequentially connected, the grid is used for pretreatment to remove large suspended matters and floating matters, the oil separation sedimentation tank is used for removing oils in sewage, the high-density sedimentation tank is used for physically treating most suspended matters and SS in the front section of the sewage, and the adjusting tank is mainly used for fully mixing high-concentration sewage and low-concentration sewage.
In the biochemical system, the UBF anaerobic reactor is a composite reactor consisting of an upflow sludge bed and an anaerobic filter, the sludge bed consisting of high-concentration granular sludge is arranged below the UBF anaerobic reactor, and the upper part of the UBF anaerobic reactor is a filter material layer consisting of filler and a biological membrane attached to the filler; the membrane bioreactor comprises a primary denitrification tank, a primary nitrification tank, a secondary denitrification tank, a secondary nitrification tank and an ultrafiltration system which are connected in sequence, wherein the primary nitrification tank and the secondary nitrification tank are both connected with an aeration system consisting of a jet blast aeration device and a pipeline thereof, and a secondary denitrification part consisting of the secondary denitrification tank and the secondary nitrification tank is provided with an additional carbon source adding system.
The ultrafiltration system is also connected with a biochemical sludge centrifugal dehydration system, the biochemical sludge centrifugal dehydration system is also connected with the primary denitrification tank, and the biochemical sludge centrifugal dehydration system is provided with a sludge centrifugal dehydrator.
In the advanced treatment system, a Fenton fluidized bed is provided with a pH value detector, a circulating pump and a built-in catalytic device, the Fenton fluidized bed is used for carrying out advanced oxidation, the Fenton fluidized bed is also bidirectionally connected with a chemical sludge plate-and-frame dehydration system, and the chemical sludge plate-and-frame dehydration system is provided with a plate-and-frame filter press; the biological aerated filter is also connected with an aeration system and is provided with an organic matter feeding system.
Compared with the prior art, the utility model has the beneficial effects that: 1. the system can adjust and keep the water outlet stability of the system according to the fluctuation of the water quality and the water quantity;
2. the stable operation of the whole process system is ensured by additionally arranging an oil separation tank, a grid, a high-density sedimentation tank and the like;
3. meanwhile, the traditional AO + secondary sedimentation tank is changed into a Membrane Bioreactor (MBR), so that the biological tank has high volume load and sludge concentration;
4. the concentrated solution is not generated by the advanced oxidation and aeration biological filter technology, and the problem of the concentrated solution is thoroughly solved.
Drawings
Fig. 1 is an overall architecture diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, in the embodiment of the present invention, a treatment system for kitchen waste and kitchen waste wastewater includes four subsystems, namely a pretreatment system, a biochemical system, an advanced treatment system and a sludge treatment system, wherein the pretreatment system includes a grid, an oil separation sedimentation tank, a high-density sedimentation tank and a regulation tank; the biochemical system comprises a UBF anaerobic reactor and a membrane bioreactor; the advanced treatment system comprises a Fenton fluidized bed and a Biological Aerated Filter (BAF); the sludge treatment system comprises a biochemical sludge centrifugal dehydration system and a chemical sludge plate-frame dehydration system.
Among the pretreatment systems, grid, oil separating sedimentation tank, high-density sedimentation tank and equalizing basin connect gradually, and the grid is used for the preliminary treatment to get rid of great suspended solid and floater, and oil separating sedimentation tank is used for removing oil in the sewage, prevents that anaerobic system and biochemical system from acidizing, and high-density sedimentation tank is used for sewage to get rid of through most suspended solid of the physical treatment of anterior segment and SS, and through high-density coagulation, flocculation, sedimentation subside most suspended solid and SS that can't be handled physically, and the equalizing basin mainly plays high low concentration sewage intensive mixing, homogeneity is all measured, anti impact load protection rear-end processing system.
In the biochemical system, the UBF anaerobic reactor is a composite reactor consisting of an upflow sludge blanket (UASB) and an Anaerobic Filter (AF), the sludge blanket consisting of high-concentration granular sludge is arranged below the UBF anaerobic reactor, the suspended solid concentration (MLSS) of mixed liquid can reach tens grams per liter, the upper part of the UBF anaerobic reactor is a filter material layer consisting of filler and a biological membrane attached to the filler, and the UASB system has the outstanding advantages that the water flow direction in the reactor is consistent with the gas production rising direction, so that the blocking chance is reduced, the stirring effect on the sludge bed layer is enhanced, the full contact of microorganisms with a water inlet substrate is facilitated, and the granular sludge is also facilitated to be formed; the UBF anaerobic reactor has the remarkable characteristics of higher organic load, high UBF starting speed, high treatment efficiency (COD removal rate is up to 85%), stable operation and the like;
the membrane bioreactor consists of a primary denitrification tank, a primary nitrification tank, a secondary denitrification tank, a secondary nitrification tank and an ultrafiltration system which are connected in sequence, wherein the primary nitrification tank and the secondary nitrification tank are both connected with aeration systems consisting of jet blast aeration devices and pipelines thereof, and the ultrafiltration replaces the traditional secondary sedimentation tank by the action of high-activity aerobic microorganisms, so that the sludge concentration of the reactor reaches dozens of grams per liter, higher organic load is obtained, insoluble particles of 1um are removed from the sludge through an ultrafiltration membrane, and the sludge discharge concentration is increased; most organic pollutants in sewage are degraded in a nitrification tank, ammonia nitrogen is oxidized into nitrate under the action of nitrifying microorganisms, a mixed liquid reflux pump (nitrate nitrogen reflux) is arranged between the front denitrification tanks of the nitrification tank corresponding to the nitrification tank, the nitrate nitrogen flows back to the denitrification tank and is reduced into nitrogen in an anoxic environment to be discharged, the aim of biological denitrification is fulfilled, the removal rate of ammonia nitrogen by a first-stage nitrification part consisting of the first-stage denitrification tank and the first-stage nitrification tank is over 99%, deep denitrification reaction is carried out in a second-stage denitrification tank and the second-stage nitrification tank, meanwhile, the amount of carbon sources in inlet water is small when secondary biological denitrification is considered, and an additional carbon source adding system is arranged on the second-stage denitrification part consisting of the second-stage denitrification tank and the second-stage nitrification tank.
Specifically, ultrafiltration system still is connected with biochemical sludge centrifugal dehydration system, and biochemical sludge centrifugal dehydration system still is connected with one-level denitrification pond, and biochemical sludge centrifugal dehydration system has sludge centrifugal dehydration machine, and biochemical sludge that filters through ultrafiltration system and produce still can carry out the wet-dry separation through biochemical sludge centrifugal dehydration system after, and the dehydration supernatant fluid gets into one-level denitrification pond again and carries out circulation processing, and the mud cake of production is transported outward and is dealt with.
In the advanced treatment system, a Fenton fluidized bed is provided with a pH value detector, a circulating pump and a built-in catalytic device, the Fenton fluidized bed is used for advanced oxidation, ferrous sulfate and hydrogen peroxide are added after wastewater enters, the circulating pump and the catalytic device are started for circular catalysis, ferrous ions catalyze the hydrogen peroxide to generate hydroxyl radicals with strong oxidation capacity under an acidic condition, under the action of the hydroxyl radicals, the structure of organic matters which are difficult to biodegrade in the wastewater is destroyed, most of the organic matters are directly mineralized into carbon dioxide and water or converted into micromolecule organic matters, liquid alkali is added after the reaction is completed, the pH value of leachate is adjusted to 7-8, PAM is added, ferric hydroxide precipitates are formed in the wastewater to form dual functions of oxidation and flocculation, and the Fenton fluidized bed is also in bidirectional connection with a chemical sludge plate frame dehydration system, the chemical sludge plate-and-frame dehydration system is provided with a plate-and-frame filter press, and wastewater treated by the Fenton fluidized bed enters the chemical sludge plate-and-frame dehydration system for mud-water separation and then enters the biological aerated filter.
The biological aerated filter is also connected with an aeration system and is provided with an organic matter feeding system, the biological aerated filter integrates biological oxidation, biological flocculation and filtration and interception, and can effectively remove residual COD, ammonia nitrogen and total nitrogen in the wastewater; meanwhile, if the aerobic BAF process is adopted, biological digestion is carried out through aeration, and COD and ammonia nitrogen in the wastewater are degraded; SS, turbidity and chroma of the effluent are reduced by the physical filtration of the SS and suspended substances in the filter.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A treatment system for kitchen and kitchen waste wastewater is characterized by comprising four subsystems of a pretreatment system, a biochemical system, an advanced treatment system and a sludge treatment system, wherein the pretreatment system comprises a grating, an oil separation sedimentation tank, a high-density sedimentation tank and a regulating tank; the biochemical system comprises a UBF anaerobic reactor and a membrane bioreactor; the advanced treatment system comprises a Fenton fluidized bed and a Biological Aerated Filter (BAF); the sludge treatment system comprises a biochemical sludge centrifugal dehydration system and a chemical sludge plate-frame dehydration system.
2. The kitchen and kitchen waste and water treatment system as claimed in claim 1, wherein in the pretreatment system, a grating, an oil separation sedimentation tank, a high-density sedimentation tank and a regulating tank are sequentially connected, the grating is used for pretreatment to remove larger suspended matters and floating matters, the oil separation sedimentation tank is used for removing oils in sewage, the high-density sedimentation tank is used for physically treating most suspended matters and SS in the sewage through a front section, and the regulating tank mainly achieves full mixing of high-concentration sewage and low-concentration sewage.
3. The system for treating kitchen and kitchen waste and wastewater according to claim 1, wherein in the biochemical system, the UBF anaerobic reactor is a composite reactor consisting of an upflow sludge bed and an anaerobic filter, the sludge bed consisting of high-concentration granular sludge is arranged below the UBF anaerobic reactor, and the filter layer consisting of filler and attached biological membrane is arranged above the UBF anaerobic reactor; the membrane bioreactor comprises a primary denitrification tank, a primary nitrification tank, a secondary denitrification tank, a secondary nitrification tank and an ultrafiltration system which are connected in sequence, wherein the primary nitrification tank and the secondary nitrification tank are both connected with an aeration system consisting of a jet blast aeration device and a pipeline thereof, and a secondary denitrification part consisting of the secondary denitrification tank and the secondary nitrification tank is provided with an additional carbon source adding system.
4. The kitchen and kitchen waste and water treatment system according to claim 3, wherein the ultrafiltration system is further connected with a biochemical sludge centrifugal dehydration system, the biochemical sludge centrifugal dehydration system is further connected with the primary denitrification tank, and the biochemical sludge centrifugal dehydration system is provided with a sludge centrifugal dehydrator.
5. The kitchen and kitchen waste and water treatment system according to claim 1, wherein in the advanced treatment system, the Fenton fluidized bed is provided with a pH value detector, a circulating pump and a built-in catalytic device, the Fenton fluidized bed is used for advanced oxidation, and is also bidirectionally connected with a chemical sludge plate-and-frame dehydration system, and the chemical sludge plate-and-frame dehydration system is provided with a plate-and-frame filter press; the biological aerated filter is also connected with an aeration system and is provided with an organic matter feeding system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220117859.0U CN216808506U (en) | 2022-01-17 | 2022-01-17 | Kitchen and kitchen garbage and wastewater treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220117859.0U CN216808506U (en) | 2022-01-17 | 2022-01-17 | Kitchen and kitchen garbage and wastewater treatment system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871253A (en) * | 2022-07-08 | 2022-08-09 | 天津高能时代水处理科技有限公司 | Kitchen waste leachate treatment system and method |
| CN116143336A (en) * | 2023-01-27 | 2023-05-23 | 同济大学 | A high-efficiency treatment and resource utilization system for anaerobic digestion liquid of food waste |
| CN116693086A (en) * | 2023-05-09 | 2023-09-05 | 广东锦帆环保科技有限公司 | Wastewater treatment system and treatment process of a landfill site |
| CN117623539A (en) * | 2023-12-08 | 2024-03-01 | 北京洁绿环境科技股份有限公司 | A non-membrane treatment method for kitchen waste biogas slurry |
-
2022
- 2022-01-17 CN CN202220117859.0U patent/CN216808506U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871253A (en) * | 2022-07-08 | 2022-08-09 | 天津高能时代水处理科技有限公司 | Kitchen waste leachate treatment system and method |
| CN116143336A (en) * | 2023-01-27 | 2023-05-23 | 同济大学 | A high-efficiency treatment and resource utilization system for anaerobic digestion liquid of food waste |
| CN116693086A (en) * | 2023-05-09 | 2023-09-05 | 广东锦帆环保科技有限公司 | Wastewater treatment system and treatment process of a landfill site |
| CN117623539A (en) * | 2023-12-08 | 2024-03-01 | 北京洁绿环境科技股份有限公司 | A non-membrane treatment method for kitchen waste biogas slurry |
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