CN110627330B - A textile printing and dyeing effluent treatment plant for reuse of reclaimed water - Google Patents
A textile printing and dyeing effluent treatment plant for reuse of reclaimed water Download PDFInfo
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- CN110627330B CN110627330B CN201911113654.4A CN201911113654A CN110627330B CN 110627330 B CN110627330 B CN 110627330B CN 201911113654 A CN201911113654 A CN 201911113654A CN 110627330 B CN110627330 B CN 110627330B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 238000004043 dyeing Methods 0.000 title claims abstract description 19
- 239000004753 textile Substances 0.000 title claims abstract description 11
- 238000005273 aeration Methods 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 19
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 12
- 238000004062 sedimentation Methods 0.000 claims description 19
- 230000003647 oxidation Effects 0.000 claims description 11
- 238000007254 oxidation reaction Methods 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 10
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 8
- 238000005188 flotation Methods 0.000 claims description 8
- 230000007062 hydrolysis Effects 0.000 claims description 8
- 238000006460 hydrolysis reaction Methods 0.000 claims description 8
- 230000020477 pH reduction Effects 0.000 claims description 8
- 230000003750 conditioning effect Effects 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 8
- 239000002351 wastewater Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 150000002894 organic compounds Chemical class 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 description 10
- 238000004064 recycling Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000010842 industrial wastewater Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000012206 bottled water Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002699 waste material Substances 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
- C02F1/24—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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- 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
- C02F3/02—Aerobic processes
Landscapes
- 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)
- Activated Sludge Processes (AREA)
Abstract
本发明公开了一种用于再生水回用的纺织印染废水处理装置，包括曝气生物池，所述曝气生物池的上部设有对应的池盖，所述池盖靠近所述曝气生物滤池连接有喷水机构，所述池盖的底部相对设有两个X支架，两个所述X支架位于所述曝气生物滤池的两侧，两个所述X支架连接有驱动机构。本发明实施例提供的技术方案的有益效果是：通过本装置，降解了印染废水中的有机化合物，提高印染废水出水水质，在对曝气生物池进行曝气时，空气自池底向池表面运动，造成一部分空气没有与污水充分混合便流失，而通过喷水机构，将曝气生物池中的水抽到曝气生物池的上方，并向下方喷洒，从而使得曝气生物池中的水与空气混合更充分，曝气效果更均匀，从而提高曝气效率。
The invention discloses a textile printing and dyeing wastewater treatment device for reclaimed water reuse. The pool is connected with a water spray mechanism, and two X brackets are oppositely arranged at the bottom of the pool cover, the two X brackets are located on both sides of the aeration biological filter, and the two X brackets are connected with a driving mechanism. The beneficial effects of the technical solutions provided by the embodiments of the present invention are: through the device, the organic compounds in the printing and dyeing wastewater are degraded, and the effluent quality of the printing and dyeing wastewater is improved. Movement, causing a part of the air to be lost without being fully mixed with the sewage, and through the water spray mechanism, the water in the biological aeration tank is pumped to the top of the biological aeration tank, and sprayed downward, so that the water in the biological biological aeration tank is pumped. It is more fully mixed with air, and the aeration effect is more uniform, thereby improving the aeration efficiency.
Description
Technical Field
The invention relates to the technical field of printing and dyeing wastewater treatment, in particular to a textile printing and dyeing wastewater treatment device for recycling reclaimed water.
Background
The regenerated water is also called as reclaimed water, circulating water or recycled water in a habit, and mainly refers to non-potable water which can reach a certain water quality standard after urban sewage is treated and can be reused in a certain range. Municipal sewage includes domestic sewage, industrial wastewater and runoff sewage, wherein the amount of industrial wastewater is the largest, and dye wastewater is one of the important sources of industrial wastewater. A large amount of water resources are consumed in the dye production process, and about 10-20% of dye is released into a water body in the production and use processes. The dye wastewater has the characteristics of large quality and water quantity change, high organic matter concentration, large chromaticity, strong alkalinity and the like, and has higher treatment difficulty. Therefore, the research on the treatment of the dye wastewater is of great significance.
The Chinese utility model CN 205974171U discloses a printing and dyeing wastewater treatment device, which comprises a regulating reservoir, a sedimentation tank, a hydrolysis acidification tank, a biological tank, a secondary sedimentation tank, a chemical oxidation lift pump room, an air flotation tank, an ozone contact tank and an aeration biological filter tank which are connected in sequence, namely the regulating reservoir, the sedimentation tank, the hydrolysis acidification tank, the biological tank, the secondary sedimentation tank, the chemical oxidation lift pump room, the air flotation tank, the ozone contact tank and the aeration biological filter tank are connected in series to form the printing and dyeing wastewater treatment device. Although the effluent quality and the discharge rate of the printing and dyeing wastewater are improved, the problems of uneven aeration, high aeration waste rate and the like exist, the effect of the aerobic process section of the biological sewage treatment is influenced, and the overall sewage treatment effect is further reduced.
Disclosure of Invention
In order to solve one of the problems, the invention provides a textile printing and dyeing wastewater treatment device for recycling reclaimed water, which adopts the following technical scheme:
a textile printing and dyeing wastewater treatment device for recycling reclaimed water comprises a regulating tank, a sedimentation tank, a hydrolysis acidification tank, a biological tank, a secondary sedimentation tank, a chemical oxidation lift pump room, an air floatation tank, an ozone contact tank and a biological aerated filter, wherein the regulating tank, the sedimentation tank, the hydrolysis acidification tank, the biological tank, the secondary sedimentation tank, the chemical oxidation lift pump room, the air floatation tank, the ozone contact tank and the biological aerated filter are sequentially connected in series, wherein a water inlet of the regulating tank is communicated with a water inlet pipe, and a water outlet of the biological aerated filter is communicated with a water outlet pipe; the sedimentation tank is communicated with a first doser, the chemical oxidation lift pump room is communicated with a second doser, the air flotation tank is communicated with a third doser, an aeration pipe is arranged in the biological aerated filter, the upper part of the biological aerated filter is provided with a corresponding tank cover, the tank cover is close to one side of the biological aerated filter is connected with a water spraying mechanism, the lower side of the tank cover is relatively provided with two X supports, and the bottom of the X supports are respectively positioned on two opposite sides of the biological aerated filter and are connected with a driving mechanism.
The water spraying mechanism comprises a water spraying pipe, the water spraying pipe penetrates through the tank cover and is communicated with one end of a water delivery hose, the other end of the water delivery hose is connected with a water outlet of a water pump, and a water inlet of the water pump is connected with a water outlet at the lower part of the biological aerated tank.
The spray pipe comprises a main water pipe, the main water pipe is arranged on one side of the biological aerated pool, which faces the pool cover, the main water pipe is communicated with the water delivery hose, the main water pipe is connected with a plurality of water distribution pipes, a plurality of spray heads are arranged on the water distribution pipes, and the spray heads face the interior of the biological aerated pool.
The water diversion pipe is perpendicular to the main water pipe.
A filter screen is arranged at the joint of the water inlet of the water pump and the biological aerated tank.
The X support comprises a first connecting rod and a second connecting rod which are arranged in a crossed mode, the middle of the first connecting rod is hinged to the middle of the second connecting rod, one end of the first connecting rod is connected with the tank cover in a sliding mode, the other end of the first connecting rod is hinged to a first connecting seat arranged on the outer side wall of the biological aerated tank, one end of the second connecting rod is fixedly connected with the tank cover, the other end of the second connecting rod is hinged to a second connecting seat arranged on the side wall of the biological aerated tank, a screw rod is coaxially arranged between the first connecting seat and the second connecting seat, the second connecting seat is in threaded connection with the screw rod, one end of the screw rod is connected with the first connecting seat, and the other end of the screw rod penetrates through the side wall of the biological aerated tank and is connected with the driving mechanism.
A first fixing rod is arranged between the two first connecting seats, and a second fixing rod is arranged between the two second connecting seats.
The edge of the outer side wall of the aeration biological pond is provided with a groove, and the X support is arranged in the groove.
The driving mechanism comprises a double-shaft driving motor, an output shaft of the double-shaft driving motor is coaxially connected with a first bevel gear, the first bevel gear is connected with a second bevel gear in a matching mode, and the second bevel gear is connected with the X support.
The second bevel gear is arranged coaxially with the lead screw.
The technical scheme provided by the invention has the beneficial effects that the device degrades organic compounds in the printing and dyeing wastewater, improves the effluent quality of the printing and dyeing wastewater, has simple structure, convenient operation and strong practicability, when the aeration biological tank is aerated, air moves from the tank bottom to the tank surface, so that a part of air is not fully mixed with sewage and runs off, and water in the aeration biological tank is pumped to the upper part of the aeration biological tank and sprayed downwards through the water spraying mechanism, so that the water and the air in the aeration biological tank are fully mixed, the aeration effect is more uniform, the aeration efficiency is improved, and meanwhile, the tank cover can be lifted through the arranged X support and the driving mechanism, so that the water spraying pipe is lifted, and the maintenance and the replacement are convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below, and it is obvious that the drawings listed below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic structural diagram I of an embodiment of a textile printing and dyeing wastewater treatment device for recycling reclaimed water.
FIG. 2 is a schematic structural diagram II of an embodiment of the textile printing and dyeing wastewater treatment device for recycling reclaimed water.
FIG. 3 is a third schematic structural diagram of an embodiment of the textile printing and dyeing wastewater treatment device for recycling reclaimed water.
FIG. 4 is a schematic structural diagram of a fourth embodiment of the textile printing and dyeing wastewater treatment device for recycling reclaimed water.
In the drawings, the reference numerals represent the following list of components: 1. an aeration biological tank; 2. a pool cover; 3. a water spraying mechanism; 301. a water spray pipe; 3011. a main water pipe; 3012. a water diversion pipe; 3013. a spray head; 302. a water spray hose; 303. a water pump; 4. an X bracket; 401. a first link; 402. a second link; 403. a first connecting seat; 404. a second connecting seat; 405. a lead screw; 5. a drive mechanism; 501. a dual-axis drive motor; 502. a first bevel gear; 503. a second bevel gear; 6. and (4) a groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; 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 meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1-4, the device comprises a regulating tank, a sedimentation tank, a hydrolysis acidification tank, a biological tank, a secondary sedimentation tank, a chemical oxidation lift pump room, an air flotation tank, an ozone contact tank and a biological aerated filter 1, wherein the regulating tank, the sedimentation tank, the hydrolysis acidification tank, the biological tank, the secondary sedimentation tank, the chemical oxidation lift pump room, the air flotation tank, the ozone contact tank and the biological aerated filter 1 are connected in series in sequence, wherein a water inlet of the regulating tank is communicated with a water inlet pipe, and a water outlet of the biological aerated filter 1 is communicated with a water outlet pipe; sedimentation tank and first doser intercommunication, chemical oxidation elevator pump room and second doser intercommunication, air supporting pond and third doser intercommunication, be equipped with the aeration pipe in the biological aerated filter 1, the upper portion of biological aerated filter 1 is equipped with corresponding pond lid 2, pond lid 2 is close to 1 one side in biological aerated filter and is connected with water spray mechanism 3, the downside of pond lid 2 is equipped with two X supports 4 relatively, the bottom of two X supports 4 is located 1 relative both sides in biological aerated filter respectively, actuating mechanism 5 is connected to two X supports 4.
The water spraying mechanism 3 comprises a water spraying pipe 301, the water spraying pipe 301 penetrates through the tank cover 2 and is communicated with one end of a water delivery hose 302, the other end of the water delivery hose 302 is connected with a water outlet of a water pump 303, and a water inlet of the water pump 303 is connected with a water outlet at the lower part of the aeration biological tank 1.
The spray pipe 301 comprises a main water pipe 3011, the main water pipe 3011 is arranged on one side of the pool cover 2 facing the biological aerated pool 1, the main water pipe 3011 is communicated with the water delivery hose 302, the main water pipe 3011 is connected with a plurality of water distribution pipes 3012, a plurality of water distribution pipes 3012 are provided with spray heads 3013, and the spray heads 3013 face the interior of the biological aerated pool 1.
The diversion pipe 3012 is perpendicular to the main water pipe 3011.
A filter screen is arranged at the joint of the water inlet of the water pump 303 and the aeration biological tank 1.
The X support 4 comprises a first connecting rod 401 and a second connecting rod 402 which are arranged in a crossed manner, the middle of the first connecting rod 401 is hinged to the middle of the second connecting rod 402, one end of the first connecting rod 401 is connected with the tank cover 2 in a sliding manner, the other end of the first connecting rod 401 is hinged to a first connecting seat 403 arranged on the outer side wall of the aeration biological tank 1, one end of the second connecting rod 402 is fixedly connected with the tank cover 2, the other end of the second connecting rod 402 is hinged to a second connecting seat 404 arranged on the side wall of the aeration biological tank 1, a screw rod 405 is coaxially arranged between the first connecting seat 403 and the second connecting seat 404, the second connecting seat 404 is in threaded connection with the screw rod 405, one end of the screw rod 405 is connected with the first connecting seat 403, and the other end of the screw rod 405 penetrates through the side wall of.
A first fixing rod is arranged between the two first connecting seats 403, and a second fixing rod is arranged between the two second connecting seats 404.
The edge of the outer side wall of the biological aerated tank 1 is provided with a groove 6, and the X support 4 is arranged in the groove 6.
The driving mechanism 5 comprises a double-shaft driving motor 501, an output shaft of the double-shaft driving motor 501 is coaxially connected with a first bevel gear 502, the first bevel gear 502 is matched and connected with a second bevel gear 503, and the second bevel gear 503 is connected with the X bracket 4.
A second bevel gear 503 is arranged coaxially with the lead screw 405.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (1)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911113654.4A CN110627330B (en) | 2019-11-14 | 2019-11-14 | A textile printing and dyeing effluent treatment plant for reuse of reclaimed water |
| PCT/CN2020/091680 WO2021093302A1 (en) | 2019-11-14 | 2020-05-22 | Textile printing and dyeing wastewater treatment device for recycling reclaimed water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911113654.4A CN110627330B (en) | 2019-11-14 | 2019-11-14 | A textile printing and dyeing effluent treatment plant for reuse of reclaimed water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110627330A CN110627330A (en) | 2019-12-31 |
| CN110627330B true CN110627330B (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911113654.4A Active CN110627330B (en) | 2019-11-14 | 2019-11-14 | A textile printing and dyeing effluent treatment plant for reuse of reclaimed water |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110627330B (en) |
| WO (1) | WO2021093302A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110627330B (en) * | 2019-11-14 | 2021-02-05 | 德州学院 | A textile printing and dyeing effluent treatment plant for reuse of reclaimed water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585226A (en) * | 2016-03-04 | 2016-05-18 | 云南大学 | AAONAO continuous flow two-sludge denitrification advanced nitrogen removal and dephosphorization device and technology based on online control |
| CN108358379A (en) * | 2018-02-05 | 2018-08-03 | 四川四通欧美环境工程有限公司 | A kind of biological aerated filter for advanced treating antibiotics waste water |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006058410A1 (en) * | 2004-09-29 | 2006-06-08 | Van Toever J Wayne | Bio-filter with low density media and toroidal media stirring configuration |
| CN100336743C (en) * | 2005-04-14 | 2007-09-12 | 上海交通大学 | Jet-flow aeration biological filtering tank |
| US8148594B2 (en) * | 2007-08-06 | 2012-04-03 | Energysolutions Diversified Services, Inc. | Process for treating radioactive waste water to prevent overloading demineralizer systems |
| CN101700943B (en) * | 2009-11-19 | 2013-04-17 | 东华大学 | Printing and dyeing waste water advanced treatment and recovery method |
| CN205974171U (en) * | 2016-08-01 | 2017-02-22 | 中国市政工程中南设计研究总院有限公司 | Device for treating printing and dyeing wastewater |
| CN106902632A (en) * | 2017-04-14 | 2017-06-30 | 盐城市净博士家电清洗有限公司 | Biofilter self-circulation type removes foul waste gas device |
| CN108042150A (en) * | 2018-01-17 | 2018-05-18 | 西安医学院第二附属医院 | A kind of foldable ladder for CT examination bed |
| CN108547745B (en) * | 2018-03-07 | 2020-08-28 | 常州优谷新能源科技股份有限公司 | Wind driven generator convenient to clean and high in generating efficiency |
| CN108468990B (en) * | 2018-03-12 | 2020-04-17 | 宁波中惠信息技术有限公司 | Lamp bracket capable of automatically lifting |
| CN108840480A (en) * | 2018-07-24 | 2018-11-20 | 成都市金雅迪彩色印刷有限公司 | It is a kind of to rush version water-circulation filtering device and method |
| CN109162509B (en) * | 2018-09-05 | 2020-06-09 | 江苏大学 | A Single Motor Driven Elevating Garage Without Avoidance |
| CN109052872A (en) * | 2018-10-16 | 2018-12-21 | 德州学院 | A kind of printing and dyeing wastewater processing equipment for reclaimed water reuse |
| CN110627330B (en) * | 2019-11-14 | 2021-02-05 | 德州学院 | A textile printing and dyeing effluent treatment plant for reuse of reclaimed water |
-
2019
- 2019-11-14 CN CN201911113654.4A patent/CN110627330B/en active Active
-
2020
- 2020-05-22 WO PCT/CN2020/091680 patent/WO2021093302A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585226A (en) * | 2016-03-04 | 2016-05-18 | 云南大学 | AAONAO continuous flow two-sludge denitrification advanced nitrogen removal and dephosphorization device and technology based on online control |
| CN108358379A (en) * | 2018-02-05 | 2018-08-03 | 四川四通欧美环境工程有限公司 | A kind of biological aerated filter for advanced treating antibiotics waste water |
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| Publication number | Publication date |
|---|---|
| WO2021093302A1 (en) | 2021-05-20 |
| CN110627330A (en) | 2019-12-31 |
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