CN114149142A - Urban sewage treatment system and method - Google Patents
Urban sewage treatment system and method Download PDFInfo
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- CN114149142A CN114149142A CN202111465138.5A CN202111465138A CN114149142A CN 114149142 A CN114149142 A CN 114149142A CN 202111465138 A CN202111465138 A CN 202111465138A CN 114149142 A CN114149142 A CN 114149142A
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- 239000010865 sewage Substances 0.000 title claims abstract description 51
- 238000011282 treatment Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000010802 sludge Substances 0.000 claims abstract description 22
- 230000020477 pH reduction Effects 0.000 claims abstract description 17
- 238000004062 sedimentation Methods 0.000 claims abstract description 16
- 239000002351 wastewater Substances 0.000 claims abstract description 14
- 230000007062 hydrolysis Effects 0.000 claims abstract description 12
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 12
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 230000004060 metabolic process Effects 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 239000004519 grease Substances 0.000 claims abstract description 4
- 238000010992 reflux Methods 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims description 12
- 238000001223 reverse osmosis Methods 0.000 claims description 12
- 238000000108 ultra-filtration Methods 0.000 claims description 11
- 241000894006 Bacteria Species 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000012141 concentrate Substances 0.000 claims description 5
- 239000005416 organic matter Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 244000005700 microbiome Species 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 241001148471 unidentified anaerobic bacterium Species 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 claims 1
- 230000003750 conditioning effect Effects 0.000 claims 1
- 238000006731 degradation reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002411 adverse Effects 0.000 description 3
- 238000005188 flotation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000008239 natural water Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a town sewage treatment system which comprises an adjusting tank used for adjusting water quality, wherein the adjusting tank is connected with an air floatation tank used for realizing solid-liquid separation and removing a grease layer, the air floatation tank is connected with a hydrolysis acidification tank used for hydrolyzing insoluble organic matters into soluble organic matters, the hydrolysis acidification tank is sequentially connected with an anaerobic tank used for carrying out biological metabolism to degrade the organic matters and an aerobic tank used for removing the organic matters in wastewater, the aerobic tank is connected with a secondary sedimentation tank used for concentrating sludge in sewage and refluxing the sludge, and the secondary sedimentation tank is connected with an advanced treatment unit used for further filtering the sewage. The invention has the advantages of small occupied area, lower cost, high automation degree, convenient management, good energy saving and emission reduction effects and stable and standard discharge of effluent quality.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a method for treating town sewage.
Background
Along with the increasing of urban and rural sewage, the components of the sewage are complex and changeable, the damage of sewage discharge to the ecological environment is increasingly obvious, and great pressure is brought to the treatment capacity of urban and rural sewage treatment plants. The wastewater discharge amount of industrial production and urban and rural residents is increasing day by day, and the quality of life of urban residents is seriously influenced. Rural domestic sewage is directly discharged into natural water without treatment, and industrial wastewater can be discharged after only a small amount of sewage is subjected to mild treatment.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention has the advantages of small occupied area, lower cost, high automation degree, convenient management, good energy-saving and emission-reducing effects and stable and standard discharge of effluent quality.
The second purpose of the invention is to provide a town sewage treatment method, which can reduce the adverse effect of town sewage on the environment through a series of treatments.
In order to achieve the technical purpose, the invention provides the following technical scheme:
the invention provides a town sewage treatment system which comprises an adjusting tank used for adjusting water quality, wherein the adjusting tank is connected with an air floatation tank used for realizing solid-liquid separation and removing a grease layer, the air floatation tank is connected with a hydrolysis acidification tank used for hydrolyzing insoluble organic matters into soluble organic matters, the hydrolysis acidification tank is sequentially connected with an anaerobic tank used for carrying out biological metabolism to degrade the organic matters and an aerobic tank used for removing the organic matters in wastewater, the aerobic tank is connected with a secondary sedimentation tank used for concentrating sludge in sewage and refluxing the sludge, and the secondary sedimentation tank is connected with an advanced treatment unit used for further filtering the sewage.
In the prior art, rural domestic sewage is directly discharged into a natural water body without being treated, and industrial wastewater can be discharged after being slightly treated, and the rural domestic water faces great challenges and the rural domestic water supply and drainage situation is more serious due to the increasingly serious agricultural pollution.
The integration technology of the invention removes large impurities in town wastewater through the regulating tank, removes a part of suspended matters and turbidity primarily from impurities which are not dissolved in water through the air flotation tank, effectively reduces water-soluble impurities through the hydrolysis acidification tank, degrades and removes organic matters in wastewater through the anaerobic tank and the aerobic tank, clarifies mixed liquid after biological treatment through mud-water separation in the secondary sedimentation tank, simultaneously concentrates and reflows sludge in the mixed liquid, effectively reduces suspended matters, colloids and other substances in water through advanced treatment, finally, reverse osmosis produced water enters a pipeline of a town reuse water system, and concentrated water produced by reverse osmosis is introduced into a small evaporation device to be evaporated and the impurities are buried. The adverse effect of town wastewater on the environment can be reduced through the series of treatments.
Preferably, the secondary sedimentation tank is connected with a sludge storage tank for cleaning and transporting the filtered sludge.
Preferably, a return pipeline is further arranged between the secondary sedimentation tank and the anaerobic tank and used for returning sludge.
Preferably, the advanced treatment unit comprises a lift pump, a multi-medium filter, an ultrafiltration device and a reverse osmosis device.
Preferably, the ultrafiltration concentrated water filtered by the ultrafiltration device is sent back to and backwashes the multi-media filter.
Preferably, the reverse osmosis equipment is connected with an RO concentrated water evaporator, and impurities left after passing through the RO concentrated water evaporator are buried.
Preferably, a grating is arranged in the adjusting tank, and the inclination angle of the grating is 20-80 degrees.
In addition, the invention also provides a town sewage treatment method, which is characterized by comprising the following steps:
(A) adjusting the quality of the sewage;
(B) adding a large amount of micro bubbles into the sewage;
(C) hydrolyzing insoluble organic matters into soluble organic matters by hydrolytic acidification;
(D) carrying out biological metabolism by using aerobic microorganisms in the presence of oxygen to degrade organic matters; the organic matters are hydrolyzed, acidified or methanated under the action of anaerobic bacteria to remove the organic matters in the wastewater;
(E) concentrating the sludge in the sewage and refluxing the sludge;
(F) carrying out advanced treatment on the sewage, recovering the obtained produced water, and burying the residual sewage after evaporation.
Preferably, the hydrolytic acidification is performed by hydrolytic bacteria and acidification bacteria.
The invention has the beneficial effects that:
the integration technology of the invention removes large impurities in town wastewater through the regulating tank, removes a part of suspended matters and turbidity primarily from impurities which are not dissolved in water through the air flotation tank, effectively reduces water-soluble impurities through the hydrolysis acidification tank, degrades and removes organic matters in wastewater through the anaerobic tank and the aerobic tank, clarifies mixed liquid after biological treatment through mud-water separation in the secondary sedimentation tank, simultaneously concentrates and reflows sludge in the mixed liquid, effectively reduces suspended matters, colloids and other substances in water through advanced treatment, finally, reverse osmosis produced water enters a pipeline of a town reuse water system, and concentrated water produced by reverse osmosis is introduced into a small evaporation device to be evaporated and the impurities are buried. The adverse effect of town wastewater on the environment can be reduced through the series of treatments.
The invention meets the requirements of environmental protection, energy conservation and emission reduction, and the town wastewater is treated to meet the requirement of recycling, thereby protecting the environment.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a town sewage treatment system provided by the invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and the detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. 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. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
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.
In order to more clearly illustrate the technical solution of the present invention, the following description is made in the form of specific embodiments.
Examples
Fig. 1 is a schematic structural diagram of a town sewage treatment system provided by the present invention.
The invention comprises a regulating tank, an air flotation tank, a hydrolysis acidification tank, an anaerobic tank, an aerobic tank, a secondary sedimentation tank, a lift pump, a multi-medium filter, ultrafiltration equipment and reverse osmosis equipment.
The urban sewage is discharged to an adjusting tank, a grid is arranged in the adjusting tank and consists of parallel grid bars, and the inclination angle of the grid bars can be about 70 degrees. The sewage is primarily filtered in the adjusting tank, large residues are filtered, and the adjusting tank adjusts the water quality.
Then, the sewage is sent to an air floatation tank, a large amount of bubbles, PAC and PAM, are put into the sewage in the air floatation tank, so that air is attached to suspended particles in a highly dispersed micro-bubble form to form a state that the density is lower than that of water, and the air floats on the water surface by utilizing the buoyancy principle, thereby realizing solid-liquid separation and removing a grease layer.
Then, the sewage is sent to a hydrolysis acidification pool, insoluble organic matters are hydrolyzed into soluble organic matters by a large amount of hydrolysis bacteria and acidification bacteria in the hydrolysis acidification pool, and macromolecular substances which are difficult to biodegrade are converted into micromolecular substances which are easy to biodegrade.
The wastewater is then sent to an aerobic tank, which utilizes aerobic microorganisms to carry out biological metabolism in the presence of oxygen to degrade organic matter.
Then, the sewage is sent to an anaerobic tank, and the anaerobic tank utilizes the function of anaerobic bacteria to hydrolyze, acidify and methanize organic matters, remove the organic matters in the sewage and improve the biodegradability of the sewage.
Then, the sewage is sent to a secondary sedimentation tank, the sludge and the water are separated by the secondary sedimentation tank, the mixed liquid is clarified, the sludge is concentrated, and the separated sludge flows back to the aerobic tank and the anaerobic tank. And adding a small amount of PAC and PAM into the secondary sedimentation tank, allowing the separated sludge to enter a sludge storage tank, and taking out and transporting away the sludge by workers.
After the sewage is treated by the sewage treatment device, the sewage is not provided with larger granular impurities, and the sewage is sent to the advanced treatment unit by the lifting pump. In the advanced treatment unit, sewage firstly enters a multi-medium filter for fine filtration, and fine residues are filtered out. The media in the multi-media filter is mostly sand filtered. Then the sewage enters the ultrafiltration equipment, and ultrafiltration concentrated water from the ultrafiltration equipment can backwash the multi-media filter to prevent the multi-media filter from being blocked. And (3) feeding water from the ultrafiltration equipment into reverse osmosis equipment, feeding product water from the reverse osmosis equipment into a reuse water system pipeline in a town, feeding concentrated water from the reverse osmosis equipment into an RO concentrated water evaporator for evaporation, and burying impurities left after evaporation.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a processing system of town sewage, its characterized in that includes the equalizing basin that is used for adjusting quality of water, the equalizing basin is connected with the air supporting pond that is used for realizing solid-liquid separation and gets rid of the grease layer, the air supporting pond is connected with the hydrolysis acidification pond and is used for hydrolysising insoluble organic matter into soluble organic matter, the hydrolysis acidification pond has connected gradually and is used for carrying out the biological metabolism with the anaerobism pond of degradation organic matter and is used for getting rid of the good oxygen pond of organic matter in the waste water, good oxygen pond is connected with and is used for carrying out the secondary sedimentation tank of concentrating and mud backward flow to mud in the sewage, secondary sedimentation tank is connected with the advanced treatment unit and is used for further filtering sewage.
2. The treatment system of claim 1, wherein a sludge storage tank is connected to the secondary sedimentation tank for cleaning and transporting the filtered sludge.
3. The treatment system according to claim 1, wherein a return pipe is further arranged between the secondary sedimentation tank and the anaerobic tank for returning sludge.
4. The treatment system of claim 1, wherein the advanced treatment unit comprises a lift pump, a multi-media filter, an ultrafiltration unit, a reverse osmosis unit.
5. The treatment system of claim 4, wherein the ultrafiltration concentrate filtered by the ultrafiltration unit is returned to and backwashed by the multimedia filter.
6. The treatment system of claim 4, wherein the reverse osmosis plant is connected to a RO concentrate evaporator to landfill impurities remaining after passing through the RO concentrate evaporator.
7. The treatment system according to claim 1, wherein a grating is disposed in the conditioning tank, and the grating is inclined at an angle of 20-80 °.
8. The treatment method of the town sewage treatment system of claim 1 is characterized by comprising the following steps:
(A) adjusting the quality of the sewage;
(B) adding a large amount of micro bubbles into the sewage;
(C) hydrolyzing insoluble organic matters into soluble organic matters by hydrolytic acidification;
(D) carrying out biological metabolism by using aerobic microorganisms in the presence of oxygen to degrade organic matters; the organic matters are hydrolyzed, acidified or methanated under the action of anaerobic bacteria to remove the organic matters in the wastewater;
(E) concentrating the sludge in the sewage and refluxing the sludge;
(F) carrying out advanced treatment on the sewage, recovering the obtained produced water, and burying the residual sewage after evaporation.
9. The method according to claim 8, wherein the hydrolytic acidification is performed by using hydrolytic bacteria and acidifying bacteria.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111465138.5A CN114149142A (en) | 2021-12-03 | 2021-12-03 | Urban sewage treatment system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111465138.5A CN114149142A (en) | 2021-12-03 | 2021-12-03 | Urban sewage treatment system and method |
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| Publication Number | Publication Date |
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| CN114149142A true CN114149142A (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111465138.5A Pending CN114149142A (en) | 2021-12-03 | 2021-12-03 | Urban sewage treatment system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115818903A (en) * | 2023-02-06 | 2023-03-21 | 石狮市锦祥漂染有限公司 | Sewage treatment system |
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| CN104944702A (en) * | 2015-06-18 | 2015-09-30 | 北京建研环保设备有限公司 | Treatment process and treatment system of ice cream wastewater |
| CN206244618U (en) * | 2016-12-15 | 2017-06-13 | 张宝兰 | A kind of energy-saving and emission-reducing town sewage treatment system |
| CN109052873A (en) * | 2018-10-19 | 2018-12-21 | 哈尔滨工业大学 | A kind of group technology handling high organic concentration town sewage |
| CN212669489U (en) * | 2020-06-29 | 2021-03-09 | 中建水务环保有限公司 | Small town sewage centralized treatment device |
-
2021
- 2021-12-03 CN CN202111465138.5A patent/CN114149142A/en active Pending
Patent Citations (5)
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| WO2010115319A1 (en) * | 2009-04-09 | 2010-10-14 | 北京汉青天朗水处理科技有限公司 | Sewage treatment process and system |
| CN104944702A (en) * | 2015-06-18 | 2015-09-30 | 北京建研环保设备有限公司 | Treatment process and treatment system of ice cream wastewater |
| CN206244618U (en) * | 2016-12-15 | 2017-06-13 | 张宝兰 | A kind of energy-saving and emission-reducing town sewage treatment system |
| CN109052873A (en) * | 2018-10-19 | 2018-12-21 | 哈尔滨工业大学 | A kind of group technology handling high organic concentration town sewage |
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Non-Patent Citations (1)
| Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115818903A (en) * | 2023-02-06 | 2023-03-21 | 石狮市锦祥漂染有限公司 | Sewage treatment system |
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