CN105753267A - Integrated sewage treatment device for treating automobile repairing wastewater - Google Patents
Integrated sewage treatment device for treating automobile repairing wastewater Download PDFInfo
- Publication number
- CN105753267A CN105753267A CN201610288008.1A CN201610288008A CN105753267A CN 105753267 A CN105753267 A CN 105753267A CN 201610288008 A CN201610288008 A CN 201610288008A CN 105753267 A CN105753267 A CN 105753267A
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- rotating disk
- biological rotating
- reaction tank
- tank
- coagulation floatation
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- 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
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- 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
- C02F1/52—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
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/082—Rotating biological contactors
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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 Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to an integrated sewage treatment device for treating automobile repairing wastewater, and belongs to the technical field of biological sewage treatment devices. The integrated sewage treatment device consists of an adjusting tank, a settling pond, a biological rotating disc reaction tank and a coagulation air-floating tank. The integrated sewage treatment device is characterized in that an electric control cabinet is mounted on the right side of the coagulation air-floating tank; the electric control cabinet is electrically connected with electric control units of the adjusting tank, the settling pond, the biological rotating disc reaction tank and the coagulation air-floating tank; evacuation tubes are mounted on the adjusting tank, the settling pond, the biological rotating disc reaction tank and the coagulation air-floating tank; the biological rotating disc reaction tank and the coagulation air-floating tank are connected with a pressurizing air dissolving pump. The treatment effect of the integrated sewage treatment device is superior to that of a conventional A/O process, the treatment cost can be effectively lowered, a process effluent can meet the standard, circulation of repairing water can be achieved, the water resource can be saved, and large-scale popularization and application can be facilitated. The problems in the prior art that either automobile repairing wastewater is unqualified and cannot be recycled so that the water resource is wasted, or the treatment cost is too high and large-scale popularization and application are obstructed, can be solved.
Description
Technical field
The present invention relates to a kind of integrated sewage treating apparatus processing auto repair waste water, belong to biology sewage treatment equipment technical field.
Background technology
Along with development and the scientific and technological progress in epoch, huge numbers of families come into by automobile.Particularly in the China accounting for world population about 1/5th, the demand of automobile steeply rises in recent years, and incident is exactly the auto repair waste water urgently processed.Existing process auto repair waste water mainly has two class methods, and a class is the simple and easy method adopting oil removal precipitation, coagulation to connect adsorption filtration again, the another kind of biochemical treatment process being to adopt tradition A/O technique；The advantage of first kind method is that processing cost is cheap, but effect is undesirable, and the water quality after process is not up to standard, it is impossible to recycle；Although Equations of The Second Kind method treatment effect is fine, but processing cost is prohibitively expensive, is difficult to popularization and application on a large scale so far.
Summary of the invention
It is an object of the invention to, for above-mentioned the deficiencies in the prior art, a kind for the treatment of effect is provided to be better than tradition A/O technique, effectively reduce processing cost, Process for Effluent is up to standard, realize recycling of maintenance water, saving water resource, be beneficial to the integrated sewage treating apparatus processing auto repair waste water of popularization and application on a large scale.
The present invention realizes above-mentioned purpose by the following technical solutions:
The integrated sewage treating apparatus of this process auto repair waste water is made up of regulating reservoir, sedimentation tank, biological rotating disk reaction tank and coagulation floatation, it is characterized in that: device body from left to right successively device have regulating reservoir, sedimentation tank, biological rotating disk reaction tank and coagulation floatation, being provided with electrical control cubicles on the right side of coagulation floatation, the ECU of electrical control cubicles and regulating reservoir, sedimentation tank, biological rotating disk reaction tank and coagulation floatation electrically connects；Regulating reservoir, sedimentation tank, biological rotating disk reaction tank and coagulation floatation are mounted on evacuated tube；Biological rotating disk reaction tank and coagulation floatation are connected with pressure air-dissolving pump respectively；Coagulation floatation outlet is connected with biological rotating disk reaction tank water inlet by built-in outlet pipe；The outlet of biological rotating disk reaction tank is entered by built-in pipe and sedimentation tankWaterMouth connects；
Being provided with water inlet manifold, dosing tank and dosing pump outside regulating reservoir, dosing pump is connected with chemical feed pipe, and chemical feed pipe is packed on regulating reservoir outlet pipe by dosing mouth, and regulating reservoir is connected by regulating reservoir outlet pipe with the water inlet of coagulation floatation；
Filtration swash plate is installed in sedimentation tank, total outlet pipe is installed outside sedimentation tank；
Biological rotating disk reaction tank top is provided with biological rotating disk device, and biological rotating disk device is connected with motor and cycloidal planetary gear speed reducer；Biological rotating disk reaction tank is filled with elastic filler, above elastic filler, is filled with honeycomb filler；Biological rotating disk reaction tank is connected with pressure air-dissolving pump intake by pipeline and valve；
Coagulation floatation top is provided with half-open shape cover plate, and the side above coagulation floatation cover plate is provided with fan, and the opposite side of coagulation floatation is provided with dreg collecting slot；Coagulation floatation is connected with pressure air-dissolving pump discharge by pipeline and valve.
The Chi Shui of described pressure air-dissolving pumped biological rotating disk reaction tank, is injected bottom coagulation floatation by pipeline after pressurized molten gas, completes air supporting work.
Described elastic filler is longitudinally filled in biological rotating disk reaction tank by framework, and the honeycomb filler that elastic filler interval 0.8m～1m distance is filled swims in the biological rotating disk reaction tank water surface, honeycomb depth of packing is less than 0.5m, it is ensured that the aerobic microbiological of elastic filler upper end has enough oxygen.
The described swash plate that filters is fixed in sedimentation tank by the flat board card dress of both sides 90-degree bent, filters swash plate detachable, improves deposition efficiency, convenient maintenance.
The half-open semi-closure of described cover plate, it is ensured that when the coagulation floatation water surface blown over by fan, scum silica frost does not outwards splash.
Described fan is for being blown into the scum silica frost of the coagulation floatation water surface in dreg collecting slot.
The present invention having the beneficial effects that compared with prior art:
The integrated sewage treating apparatus of this process auto repair waste water is by installing fan at coagulation floatation, installing half-open half-closed cover plate on coagulation floatation top, it is ensured that fan blow floating slag when entering dreg collecting slot scum silica frost will not outwards splash；Install simple, remove the gred effective.Being biological rotating disk reaction tank pond Water Soluble Gas by pressure air-dissolving pump, then injected at the bottom of coagulation floatation pond by the Chi Shui after molten gas, dissolved-air rate is higher, water quality more preferably, better effects if.The biological rotating disk device of biological rotating disk reaction tank, elastic filler and honeycomb filler are combined and are carried out biological respinse, strengthen aerobic process, complete anoxia, anaerobic processes under water simultaneously；Treatment effect is better than tradition A/O technique, effectively reduces cost, and water quality treatment is up to standard, it is achieved recycling of maintenance water, is greatly saved water resource, and is conducive to popularization and application on a large scale.Improve solve prior art process auto repair waste water otherwise water quality not up to standard, it is impossible to recycle, cause water resource waste, or processing cost is too expensive, it is difficult to the problem of popularization and application on a large scale.
Accompanying drawing explanation
The master that Fig. 1 is a kind of integrated sewage treating apparatus processing auto repair waste water looks sectional structure schematic diagram；
Fig. 2 is the vertical view sectional structure schematic diagram of a kind of integrated sewage treating apparatus processing auto repair waste water；
Fig. 3 is the contour structures front view of a kind of integrated sewage treating apparatus processing auto repair waste water；
Fig. 4 is the contour structures rearview of a kind of integrated sewage treating apparatus processing auto repair waste water；
Fig. 5 is the sectional structure schematic diagram filtering swash plate of sedimentation tank.
In figure: 1, regulating reservoir, 2, sedimentation tank, 3, biological rotating disk reaction tank, 4, coagulation floatation, 5, electrical control cubicles, 6, evacuated tube, 7, pressure air-dissolving pump；
101, water inlet manifold, 102, dosing tank, 103, dosing pump, 104, chemical feed pipe, 105, dosing mouth, 106, regulating reservoir outlet pipe；
201, swash plate is filtered, 202, total outlet pipe；
301, elastic filler, 302, honeycomb filler, 303, biological rotating disk device；
401, cover plate, 402, fan, 403, dreg collecting slot.
Detailed description of the invention
Lower in conjunction with accompanying drawing, the embodiment of the integrated sewage treating apparatus of this process auto repair waste water is described in further detail: (referring to Fig. 1～5)
The integrated sewage treating apparatus of this process auto repair waste water is made up of regulating reservoir 1, sedimentation tank 2, biological rotating disk reaction tank 3 and coagulation floatation 4, device body from left to right successively device have regulating reservoir 1, sedimentation tank 2, biological rotating disk reaction tank 3 and coagulation floatation 4, being provided with electrical control cubicles 5 on the right side of coagulation floatation 4, the ECU of electrical control cubicles 5 and regulating reservoir 1, sedimentation tank 2, biological rotating disk reaction tank 3 and coagulation floatation 4 electrically connects；Regulating reservoir 1, sedimentation tank 2, biological rotating disk reaction tank 3 and coagulation floatation 4 are mounted on evacuated tube 6；Biological rotating disk reaction tank 3 and coagulation floatation 4 are connected with pressure air-dissolving pump 7 respectively；The outlet of coagulation floatation 4 is connected with the water inlet of biological rotating disk reaction tank 3 by built-in outlet pipe；The outlet of biological rotating disk reaction tank 3 is connected with the water inlet of sedimentation tank 2 by built-in pipe；
Regulating reservoir 1 is outside is provided with water inlet manifold 101, dosing tank 102, dosing pump 103, dosing pump 103 is connected with chemical feed pipe 104, chemical feed pipe 104 is packed on regulating reservoir outlet pipe 106 by dosing mouth 105, and regulating reservoir 1 is connected by regulating reservoir outlet pipe 106 with coagulation floatation 4；
Filtration swash plate 201 is installed in sedimentation tank 2, total outlet pipe 202 is installed outside sedimentation tank 2；
Biological rotating disk reaction tank 3 top is provided with biological rotating disk device 303, and biological rotating disk device 303 is connected with motor and cycloidal planetary gear speed reducer；Biological rotating disk reaction tank 3 is filled with elastic filler 301, above elastic filler 301, is filled with honeycomb filler 302；Biological rotating disk reaction tank 3 is connected with the entrance of pressure air-dissolving pump 7 by pipeline and valve；
Coagulation floatation 4 top is provided with half-open shape cover plate 401, and the coagulation floatation 4 at the upper side of cover plate 401 is provided with fan 402, and the opposite side of coagulation floatation 4 is provided with dreg collecting slot 403；Coagulation floatation 4 is connected with the outlet of pressure air-dissolving pump 7 by pipeline and valve.
The described pressure air-dissolving pump 7 being connected with biological rotating disk reaction tank 3 and coagulation floatation 4 respectively, extracts the Chi Shui of biological rotating disk reaction tank 3 out, is injected the bottom of coagulation floatation 4 after pressurized molten gas by pipeline, completes air supporting work.
Described elastic filler 301 is longitudinally filled in biological rotating disk reaction tank 3 by framework, the honeycomb filler 302 filled with elastic filler 301 0.8m～1m distance spaced above swims in biological rotating disk reaction tank 3 water surface, the thickness of honeycomb filler 302 is less than 0.5m, it is ensured that the aerobic microbiological of elastic filler 301 upper end has enough oxygen.
The described swash plate 201 that filters is fixed in sedimentation tank 2 by the flat board card dress of both sides 90-degree bent, filters swash plate 201 detachable, improves deposition efficiency, convenient maintenance.
The described half-open semi-closure of cover plate 401, it is ensured that when coagulation floatation 4 water surface blown over by fan 402, scum silica frost does not outwards splash.
Described fan 402 is for being blown into the scum silica frost of coagulation floatation 4 water surface in dreg collecting slot 403.(referring to Fig. 1～5)
When the integrated sewage treating apparatus of this process auto repair waste water runs:
Sewage enters regulating reservoir 1 by water inlet manifold 101, coagulation floatation 4 is entered after homogenizing sewage, it is mixed into regulating reservoir outlet pipe 106 by chemical feed pipe 104, dosing mouth 105, subsequently into coagulation floatation 4 with enhanced coagulation effect after being sucked coagulant and flocculation aid from dosing tank 102 by dosing pump 103 therebetween；Air is dissolved in the Chi Shui extracted from biological rotating disk reaction tank 3 by the pressure air-dissolving pump 7 outside coagulation floatation 4, again the Chi Shui after molten gas is injected bottom coagulation floatation 4, molten gas is made to overflow with the form of micro-bubble, coagulation floatation 4 side is provided with a small-power fan 402, and scum silica frost is blown in the dreg collecting slot 403 of coagulation floatation 4 opposite side by fan 402；The half-open half-closed cover plate 401 that coagulation floatation 4 is installed above, it is ensured that when water surface scum silica frost is blown into dreg collecting slot 403 by small-power fan 402, scum silica frost will not outwards splash.
The water outlet of coagulation floatation 4 is entered in biological rotating disk reaction tank 3 by built-in outlet pipe and carries out biochemical treatment.In biological rotating disk reaction tank 3, elastic filler 301 and honeycomb filler 302 is adopted to work in coordination with biological rotating disk device 303 and complete biochemical treatment step.In biochemical treatment process, bigger than sewage surface tension force, porosity is high honeycomb filler 302 distribution swims on the water surface, makes that aerobic microbiological is attached thereto to be grown well, and meanwhile, honeycomb filler 302 also can retain the float in sewage, cleans the water surface.
With 0.5～1 meter of distance of honeycomb filler 302 perpendicular separation, be filled in the elastic filler 301 bottom biological rotating disk reaction tank 3, have that surface tension is big, hollow out does not block, the rapid feature of biofilm；Elastic filler 301 surface also apposition growth has aerobic microbiological, and the latter half apposition growth of elastic filler 301 has anaerobe or aerobic-anaerobic microbe.Biological rotating disk device 303 works under the drive of motor and cycloidal planetary gear speed reducer, combine with elastic filler 301 and honeycomb filler 302 and both can strengthen aerobic process, anoxia or even anaerobic processes can be completed under water again simultaneously, namely utilize the dissolved oxygen gradient that the depth of water is formed to realize synchronous nitration, denitrification.
Biological rotating disk device 303 and the combination of elastic filler 301 and honeycomb filler 302 can maintain microorganism concn higher in pond and more microbe species, substantially increase volumetric loading.Simultaneously for the elastic filler 301 in biological rotating disk reaction tank 3 and honeycomb filler 302, more lower in cost than traditional aeration oxygen supply by the rotary type oxygen supply of biological rotating disk device 303, and because the anaerobic environment at the bottom of pond will not be upset, from without being respectively provided with anoxic pond and Aerobic Pond, effectively save construction cost.Compared to tradition A/O technique, it is achieved complete synchronous nitration and denitrification in one reaction pool, it is not necessary to nitrification liquid refluxes, and is also greatly saved capital construction and operating cost.
Sedimentation tank 2 is injected in the water outlet of the biological rotating disk reaction tank 3 of the integrated sewage treating apparatus of this process auto repair waste water, sedimentation tank 2 is provided with removable filter swash plate 201, by filter swash plate 201 can improve deposition efficiency, reduce the time of staying, clean more convenient.
The ECU of electrical control cubicles 5 and regulating reservoir 1, sedimentation tank 2, biological rotating disk reaction tank 3 and coagulation floatation 4 electrically connects, capable of fast starting, close a whole set of sewage-treatment plant and each reaction member electric device, be effectively increased the automatization level of the integrated sewage treating apparatus of this process auto repair waste water.During maintenance, electrical control cubicles 5 can be passed through and close a whole set of sewage-treatment plant, then the evacuated tube 6 bottom each reaction member is opened draining, inspection operation can be started after a whole set of sewage-treatment plant internal drainage completes.
Following table is Jing Zhou, Hubei car servicing centre based on the embodiment of the present invention, the specific experiment data after device is stable:
As seen from the above table, after the integrated sewage treating apparatus operation of this process auto repair waste water processes, auto repair waste water can be made to reach COD≤60mg/L, petroleum-type dirt matter≤3mg/L, suspension pollutant≤20mg/L, be fully achieved country's GB26877-2011 " automobile maintenance industry pollution discharge standard " requirement, treatment effect is excellent, recovery Posterior circle utilizes, it is achieved Automobile Service industry and saving water resource win-win, can be widely applied to auto repair unit and other one-stop automobile service centers.
The above is presently preferred embodiments of the present invention, the example above illustrates the flesh and blood of the present invention is not done any pro forma restriction, person of an ordinary skill in the technical field's any simple modification that above detailed description of the invention is made by the technical spirit of the foundation present invention after having read this specification or deformation, and the technology contents possibly also with the disclosure above is changed or is modified to the Equivalent embodiments of equivalent variations, all still fall within the scope of technical solution of the present invention, without departing from the spirit and scope of the invention.
Claims (6)
1. the integrated sewage treating apparatus processing auto repair waste water, it is made up of regulating reservoir (1), sedimentation tank (2), biological rotating disk reaction tank (3) and coagulation floatation (4), it is characterized in that: device body from left to right successively device have regulating reservoir (1), sedimentation tank (2), biological rotating disk reaction tank (3) and coagulation floatation (4), coagulation floatation (4) right side is provided with electrical control cubicles (5), and the ECU of electrical control cubicles (5) and regulating reservoir (1), sedimentation tank (2), biological rotating disk reaction tank (3) and coagulation floatation (4) electrically connects；Regulating reservoir (1), sedimentation tank (2), biological rotating disk reaction tank (3) and coagulation floatation (4) are mounted on evacuated tube (6)；Biological rotating disk reaction tank (3) and coagulation floatation (4) are connected with pressure air-dissolving pump (7) respectively；The outlet of coagulation floatation (4) is connected with the water inlet of biological rotating disk reaction tank (3) by built-in outlet pipe；The outlet of biological rotating disk reaction tank (3) passes through built-in pipe and sedimentation tank(2)Water inlet connect；
Regulating reservoir (1) is outside is provided with water inlet manifold (101), dosing tank (102) and dosing pump (103), dosing pump (103) is connected with chemical feed pipe (104), chemical feed pipe (104) is packed on regulating reservoir outlet pipe (106) by dosing mouth (105), and regulating reservoir (1) is connected by regulating reservoir outlet pipe (106) with coagulation floatation (4)；
Filtration swash plate (201) is installed in sedimentation tank (2), total outlet pipe (202) is installed outside sedimentation tank (2)；
Biological rotating disk reaction tank (3) top is provided with biological rotating disk device (303), and biological rotating disk device (303) is connected with motor and cycloidal planetary gear speed reducer；Being filled with elastic filler (301) in biological rotating disk reaction tank (3), elastic filler (301) top is filled with honeycomb filler (302)；Biological rotating disk reaction tank (3) is connected with the entrance of pressure air-dissolving pump (7) by pipeline and valve；
Coagulation floatation (4) top is provided with half-open shape cover plate (401), and the coagulation floatation (4) of cover plate (401) upper side is provided with fan (402), and the opposite side of coagulation floatation (4) is provided with dreg collecting slot (403)；Coagulation floatation (4) is connected with the outlet of pressure air-dissolving pump (7) by pipeline and valve.
2. a kind of integrated sewage treating apparatus processing auto repair waste water according to claim 1, it is characterized in that: the Chi Shui of biological rotating disk reaction tank (7) extracted out by described pressure air-dissolving pump (7), inject coagulation floatation (4) bottom by pipeline after pressurized molten gas, complete air supporting work.
3. a kind of integrated sewage treating apparatus processing auto repair waste water according to claim 1, it is characterized in that: described elastic filler (301) is longitudinally filled in biological rotating disk reaction tank (3) by framework, and the honeycomb filler (302) that elastic filler (301) interval 0.8m～1m distance is filled swims in biological rotating disk reaction tank (3) water surface, honeycomb filler (302) thickness is less than 0.5m, it is ensured that the aerobic microbiological that elastic filler (301) is adhered to above has enough oxygen.
4. a kind of integrated sewage treating apparatus processing auto repair waste water according to claim 1, it is characterized in that: described filtration swash plate (201) is filled by the flat board card of both sides 90-degree bent and is fixed in sedimentation tank (2), filter swash plate (201) detachable, improve deposition efficiency, convenient maintenance.
5. a kind of integrated sewage treating apparatus processing auto repair waste water according to claim 1, it is characterised in that: described cover plate (401) half-open semi-closure, it is ensured that when coagulation floatation (4) water surface blown over by fan (402), scum silica frost does not outwards splash.
6. a kind of integrated sewage treating apparatus processing auto repair waste water according to claim 1, it is characterised in that: described fan (402) is for being blown into the scum silica frost of coagulation floatation (4) water surface in dreg collecting slot (403).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610288008.1A CN105753267B (en) | 2016-05-04 | 2016-05-04 | Handle the integrated sewage treating apparatus of auto repair waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610288008.1A CN105753267B (en) | 2016-05-04 | 2016-05-04 | Handle the integrated sewage treating apparatus of auto repair waste water |
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| CN105753267A true CN105753267A (en) | 2016-07-13 |
| CN105753267B CN105753267B (en) | 2018-03-27 |
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| CN201610288008.1A Expired - Fee Related CN105753267B (en) | 2016-05-04 | 2016-05-04 | Handle the integrated sewage treating apparatus of auto repair waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116675387A (en) * | 2023-07-06 | 2023-09-01 | 安徽工业大学 | System and method for double-circulation treatment of secondary sedimentation tank effluent based on biological rotating disc filtration |
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| CN105293820A (en) * | 2015-10-19 | 2016-02-03 | 沈阳建筑大学 | Modular integrated process method suitable for cow breeding wastewater treatment |
| CN205603426U (en) * | 2016-05-04 | 2016-09-28 | 荆州职业技术学院 | Handle integrative sewage treatment device of auto repair waste water |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007048773A1 (en) * | 2005-10-28 | 2007-05-03 | Otv Sa | Water treating method and arrangement integrating a fixed-bacteria biological treatment and flocculation-decantation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116675387A (en) * | 2023-07-06 | 2023-09-01 | 安徽工业大学 | System and method for double-circulation treatment of secondary sedimentation tank effluent based on biological rotating disc filtration |
| CN116675387B (en) * | 2023-07-06 | 2024-02-13 | 安徽工业大学 | System and method for dual-circulation treatment of secondary sedimentation tank effluent based on biological rotating disk filtration |
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| CN105753267B (en) | 2018-03-27 |
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