CN104944682A - Membrane-bioreactor domestic sewage treatment device and treatment method - Google Patents
Membrane-bioreactor domestic sewage treatment device and treatment method Download PDFInfo
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- CN104944682A CN104944682A CN201510275267.6A CN201510275267A CN104944682A CN 104944682 A CN104944682 A CN 104944682A CN 201510275267 A CN201510275267 A CN 201510275267A CN 104944682 A CN104944682 A CN 104944682A
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Abstract
The invention relates to a membrane-bioreactor domestic sewage treatment device which comprises an anaerobic tank, an aerobic tank and a membrane tank which are sequentially connected, wherein a reflux pump is connected between the anaerobic tank and aerobic tank; activated sludge and a biological filler are respectively added into the anaerobic tank and aerobic tank; and an ultrafiltration membrane is arranged in the membrane tank. The sewage treatment device is only provided with the anaerobic tank and aerobic tank, but not provided with any anoxic tank as compared with the traditional sewage treatment device. Besides, the sewage treatment device adopts the microbial immobilization technique to independently culture the activated sludge, thereby implementing independent growth of specific microbes in each process, and enhancing the sewage reduction capacity of the system.
Description
Technical field
The invention belongs to sanitary sewage disposal field, be specifically related to a kind of waste disposal plant.
Background technology
Film-bioreactor technique (MBR) is the class technique studying the most extensively and profoundly in water treatment field, is the water technology that a kind of membrane separating process replaces secondary sedimentation basins in traditional activated sludge process.In traditional active sludge saprobia treatment technology, as AAO technique, mud-water separation completes by action of gravity in second pond, and its separation efficiency depends on the settling property of active sludge, and settleability is better, and mud-water separation efficiency is higher.And the settleability of mud depends on the operation conditions of aeration tank, improve the operational condition that sludge settling strictly must control aeration tank, which has limited the scope of application of the method.Due to the requirement of second pond solid-liquid separation, the mud of aeration tank can not maintain higher concentration, generally at about 1.5 ~ 3.5g/L, thus limits biochemical reaction rate.Hydraulic detention time (HRT) and sludge age (SRT) interdepend, and improve volumetric loading and often form contradiction with reduction sludge loading.System also creates a large amount of excess sludges in operational process, and its disposal costs accounts for 25% ~ 40% of sewage work's working cost.Also easily there is sludge bulking phenomenon in traditional active sludge treatment system, containing suspended solids in water outlet, effluent quality worsens.For the problems referred to above, membrane separation technique and traditional active sludge biologic treating technique organically combine by film-bioreactor technique (MBR), film-bioreactor technique (MBR) realizes being separated of sludge retention time and hydraulic detention time, substantially increase solid-liquid separation efficiency, and due to the appearance of special efficacy bacterium (particularly dominant microflora) in the increase of activated sludge concentration in aeration tank and mud, improve biochemical reaction rate.Meanwhile, by reducing F/M than reducing excess sludge generation (being even zero), thus many outstanding problems of traditional activated sludge process existence are substantially solved.
But this technology also has the following disadvantages: 1, comparatively complicated sludge recirculation system, not only increases cost of investment, also make sequence of control in the process used at it complicated, maintenance difficulties strengthens and trouble spot is increased; 2, in system, microorganism concn increases greatly, but fails to solve active sludge microorganism kind and mix, and occurs the shortcomings such as suppression mutually because required living environment is mutually different.
Summary of the invention
(1) technical problem that will solve
The technical process existed in sewage treatment process for existing film-bioreactor is complicated, and microbe species mixes, and there is the defect mutually suppressed, the invention provides a kind of film-bioreactor sewage treatment unit.
(2) technical scheme
Film-bioreactor sewage treatment unit of the present invention, comprise the anaerobic pond, Aerobic Pond and the membrane cisterna that connect successively, reflux pump is connected with between described anaerobic pond and Aerobic Pond, in described anaerobic pond and Aerobic Pond, be all added with active sludge and biologic packing material, in described membrane cisterna, be provided with ultra-filtration membrane.
In the present invention, described biologic packing material is that porousness is cylindric, and the diameter of described biologic packing material is 6 ~ 14mm, and height is 6 ~ 14mm, and specific surface area is 1000 ~ 1400m
2/ m
3.Select the long-pending 1000 ~ 1400m of volume small specific surface
2/ m
3biologic packing material be more conducive to a large amount of stable attachments of mud.
In the present invention, described biologic packing material fills in the bottom in described pond, accounts for 1/2 ~ 1/3 of described anaerobic pond or described Aerobic Pond pond volume.The loadings of biologic packing material is 1/2 ~ 1/3 attachment that can realize a large amount of active sludge, ensures the treatment effect to sewage.
In the present invention, the active sludge in described anaerobic pond and Aerobic Pond is all attached to described biologic packing material surface.Active sludge is along with the surface in biologic packing material, and compare with being not attached to biologic packing material surface, active sludge is not easily with drainage flow, and the phenomenon that microorganism mixes makes moderate progress, and microorganism growth situation is relatively better, strong to the processing power of sewage.
In the present invention, be provided with agitator at the bottom of described anaerobic pond pond, water outlet arranges filter.Arrange agitator to stir sewage, sewage is fully mixed with active sludge, improve treatment effect, filter can prevent biologic packing material from entering Aerobic Pond with sewage.
In the present invention, arrange aeration plate bottom described Aerobic Pond, water outlet arranges filter.
In the present invention, described ultra-filtration membrane is ZeeWeed 500DX membrane module.
Second object of the present invention is to provide one way of life Sewage treatment systems, it is characterized in that, comprises the coarse rack, equalizing tank, aerated grit chamber, ultra-fine grid and the film-bioreactor sewage treatment unit that are connected successively.
3rd object of the present invention is to provide a kind of method utilizing film-bioreactor sewage treatment unit process sanitary sewage of the present invention, it is characterized in that, comprises the steps:
1) sewage enters described anaerobic pond, the dissolved oxygen controlled in described anaerobic pond is 0.05 ~ 1mg/L, sewage is stopping 3 ~ 5h in described anaerobic pond, through the Degradation of described filling surface Microbial Communities in Activated Sludge, nitric nitrogen in sewage is converted to nitrogen, organism in sewage, by initial breakdown, obtains the sewage of preliminary treatment;
2) sewage of described preliminary treatment enters described Aerobic Pond, the dissolved oxygen controlled in described sewage is 2 ~ 4mg/L, sewage is stopping 7 ~ 9h in described Aerobic Pond, through the Degradation of described filling surface Microbial Communities in Activated Sludge, ammonium nitrogen in sewage is converted into nitric nitrogen, organism in sewage is further degraded, obtain the sewage of process further, the sewage of described further process is back to described anaerobic pond through described reflux pump, again through step 1) described in process, nitric nitrogen in sewage is converted into nitrogen, processed laggard enter described Aerobic Pond, the sewage of ammonia must be removed,
3) sewage of described removal ammonia is passed into described membrane cisterna, adopt ZW500DX membrane module, filtering accuracy is 0.02 ~ 0.06 micron, and design flux 20 ~ 24LMH, carries out membrane filtration to the sewage of described removal ammonia, obtain clean water;
4) by the water disinfection of described cleaning, discharge after reaching standard.
(3) beneficial effect
In the process processed sewage, generally need be processed it successively by anaerobion, anoxic microorganism and aerobic microbiological three kinds of microorganisms, therefore three treating ponds are independently set.In the present invention, add biologic packing material respectively in anaerobic pond and Aerobic Pond after, biological activated sludge is all attached on biologic packing material, mud near biologic packing material part in anaerobic pond is in anaerobic state, due in the sewage of Aerobic Pond backflow with air, be in anoxic condition near the mud of foul water fraction, by means of only the function arranging a treating pond and can realize both anoxic pond and anaerobic pond, and decreasing cost of investment, use procedure program is simple.
With the addition of biologic packing material in waste disposal plant of the present invention, mud is attached to the surface of biologic packing material, and sewage mobility of active sludge in the process of flowing is little, and the phenomenon that microorganism mixes improves, and improves the processing power of sewage.
Film-bioreactor sewage treatment unit of the present invention and treatment process also tool have the following advantages:
(1) technical process is simple, and internal recycling system is only the nitrification liquid backflow of double oxygen oxygen-starved area and aerobic zone, can save the anoxic-anaerobism backflow in conventional film-bioreactor technique, membrane cisterna district-aerobic backflow;
(2) hold concurrently oxygen oxygen-starved area and aerobic zone of system adopts immobilized microorganism technology, and active sludge is independently cultivated, and can realize the independent growths of each process section specified microorganisms, dirty ability falls in raising system;
(3) immobilized microorganism technology adopts specific surface area large, and biofilm is easy to microbe granular filler, and microorganism colonization amount is large, improves system bulk load, thus saves the construction investment cost of technique;
4) reduction of floor space, the reduction of construction cost, high operational efficiency and compact design make our system reduce 40% than existing film-bioreactor plant area.The inside of whole system, without pipeline, electric utility and other buildingss, while it reducing the cost of equipment, also makes our device structure simpler.
In a word, the present invention is by adding the large biological particles filler of specific surface in anaerobic zone and aerobic zone, add biomembranous bond area, the utilising efficiency of increase system oxygen, reduce system footprint area and construction investment cost, by the biochemical treatment process of system, can be good at realizing nitrification and denitrification, the pollutents such as BOD5, total nitrogen, total phosphorus all can be effectively reduced.Whole process combines conventional film-bioreactor technique and fixed biologically embrane method, and by adjusting the dosage of granular filler, can realize the function of fluidized-bed process, range of application is wider.
Accompanying drawing explanation
Fig. 1 is film-bioreactor technique sewage treatment unit structure iron of the present invention
Fig. 2 is the traditional membrane-bioreactor sewage water treatment system comprising anaerobic pond, anoxic pond and Aerobic Pond
In Fig. 1,1 is anaerobic pond; 2 is Aerobic Pond; 3 is membrane cisterna; 4 is membrane module; 5, be biologic packing material; 6 is reflux pump.
In Fig. 2,1 is anaerobic pond; 2 is anoxic pond; 3 is Aerobic Pond; 4 is membrane cisterna; 5 is membrane module; 6 is anoxic-anaerobism reflux pump; 7 is aerobic-anaerobic reflux pump; 8 is membrane cisterna-aerobic reflux pump.
Embodiment
Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
The present embodiment relates to a kind of film-bioreactor sewage treatment unit, and adopt A/O+MBR technique, as shown in Figure 1, this treatment system comprises the anaerobic pond 1, Aerobic Pond 2 and the membrane cisterna 3 that connect successively to its structure, has membrane module 4 in membrane cisterna 3.Add in anaerobic pond 1 and Aerobic Pond 2 and have active sludge and biologic packing material 5, described anaerobic pond 1 is connected by reflux pump 6 with bottom Aerobic Pond 2.
Preferred described biologic packing material is preferably the cylindric modified plastics filler of porousness, diameter 10mm, high 10mm, specific surface area 1200m
2/ m
3, purchased from Longhua, Yangzhou Genie et Environnement.
Described biologic packing material fills in the bottom in described pond, accounts for 1/2 ~ 1/3 of described anaerobic pond or described Aerobic Pond pond volume.
Active sludge in described anaerobic pond and Aerobic Pond is all attached to described biologic packing material surface.
Be provided with agitator at the bottom of described anaerobic pond pond, water outlet arranges filter.
Arrange corundum aeration plate bottom described Aerobic Pond, water outlet arranges filter.
Described ultra-filtration membrane is ZeeWeed 500DX membrane module.
Preferred described anaerobic pond is preferably skeleton construction, and pond holds for 625m
3.
Preferred described membrane cisterna for film group device described in skeleton construction be 8 ZW500DX film casees, wherein 4 film casees are equipped with 48 ultra-filtration membranes, and 4 film casees are equipped with 28 ultra-filtration membranes, and the filtration area of each film is 34.4m
2.
Embodiment 2
The present embodiment relates to the application of a kind of MBR Sewage treatment systems in disposing of sewage, and its concrete steps are as follows: getting certain small towns city domestic sewage is former water, and after thick lattice coral, equalizing tank, aerated grit chamber, ultra-fine lattice coral filter, sewage enters anaerobic pond.
1) sewage enters described anaerobic pond, the dissolved oxygen controlled in described anaerobic pond is 0.95mg/L, sewage is stopping 4h in described anaerobic pond, through the Degradation of described filling surface Microbial Communities in Activated Sludge, nitric nitrogen in sewage is converted to nitrogen, organism in sewage, by initial breakdown, obtains the sewage of preliminary treatment;
2) sewage of described preliminary treatment enters described Aerobic Pond, the dissolved oxygen controlled in described sewage is 2 ~ 4mg/L, sewage is stopping 8h in described Aerobic Pond, through the Degradation of described filling surface Microbial Communities in Activated Sludge, ammonium nitrogen in sewage is converted into nitric nitrogen, organism in sewage is further degraded, obtain the sewage of process further, the sewage of described further process is back to described anaerobic pond through described reflux pump, again through step 1) described in process, nitric nitrogen in sewage is converted into nitrogen, processed laggard enter described Aerobic Pond, the sewage of ammonia must be removed,
3) sewage of described removal ammonia is passed into described membrane cisterna, adopt ZW500DX membrane module, filtering accuracy is 0.04 micron, and design flux 22LMH, carries out membrane filtration to the sewage of described removal ammonia, obtain clean water;
4) by the water disinfection of described cleaning, discharge after reaching standard.
The water of the cleaning after process is carried out to the mensuration of COD, ammonia nitrogen, turbidity, COD is 40mg/L, and ammonia nitrogen is 3mg/L, and turbidity is not higher than 1NTU.
Embodiment 3
The present embodiment relates to a kind of MBR sewage treatment process, and its concrete steps are as follows: getting certain village sanitary sewage is former water, and day output is 1000m
3/ d.Former water, after thick lattice coral, equalizing tank, aerated grit chamber, ultra-fine lattice coral filter, passes into anaerobic pond.
1) sewage enters described anaerobic pond, the dissolved oxygen controlled in described anaerobic pond is 0.1mg/L, sewage is stopping 3h in described anaerobic pond, through the Degradation of described filling surface Microbial Communities in Activated Sludge, nitric nitrogen in sewage is converted to nitrogen, organism in sewage, by initial breakdown, obtains the sewage of preliminary treatment;
2) sewage of described preliminary treatment enters described Aerobic Pond, the dissolved oxygen controlled in described sewage is 2 ~ 4mg/L, sewage is stopping 7h in described Aerobic Pond, through the Degradation of described filling surface Microbial Communities in Activated Sludge, ammonium nitrogen in sewage is converted into nitric nitrogen, organism in sewage is further degraded, obtain the sewage of process further, the sewage of described further process is back to described anaerobic pond through described reflux pump, again through step 1) described in process, nitric nitrogen in sewage is converted into nitrogen, processed laggard enter described Aerobic Pond, the sewage of ammonia must be removed,
3) sewage of described removal ammonia is passed into described membrane cisterna, adopt ZW500DX membrane module, filtering accuracy is 0.02 micron, and design flux 20LMH, carries out membrane filtration to the sewage of described removal ammonia, obtain clean water;
4) by the water disinfection of described cleaning, discharge after reaching standard.
Sewage after process is carried out to the mensuration of COD, ammonia nitrogen, turbidity, COD is 45mg/L, and ammonia nitrogen is 3mg/L, and turbidity is not higher than 1NTU.
Embodiment 4
The present embodiment relates to a kind of MBR sewage treatment process, and its concrete steps are as follows: getting certain village sanitary sewage is former water, and day output is 1000m
3/ d.Former water, after thick lattice coral, equalizing tank, aerated grit chamber, ultra-fine lattice coral filter, passes into anaerobic pond:
1) sewage enters described anaerobic pond, the dissolved oxygen controlled in described anaerobic pond is 0.1mg/L, sewage is stopping 5h in described anaerobic pond, through the Degradation of described filling surface Microbial Communities in Activated Sludge, nitric nitrogen in sewage is converted to nitrogen, organism in sewage, by initial breakdown, obtains the sewage of preliminary treatment;
2) sewage of described preliminary treatment enters described Aerobic Pond, the dissolved oxygen controlled in described sewage is 2 ~ 4mg/L, sewage is stopping 9h in described Aerobic Pond, through the Degradation of described filling surface Microbial Communities in Activated Sludge, ammonium nitrogen in sewage is converted into nitric nitrogen, organism in sewage is further degraded, obtain the sewage of process further, the sewage of described further process is back to described anaerobic pond through described reflux pump, again through step 1) described in process, nitric nitrogen in sewage is converted into nitrogen, processed laggard enter described Aerobic Pond, the sewage of ammonia must be removed,
3) sewage of described removal ammonia is passed into described membrane cisterna, adopt ZW500DX membrane module, filtering accuracy is 0.06 micron, and design flux 24LMH, carries out membrane filtration to the sewage of described removal ammonia, obtain clean water;
4) by the water disinfection of described cleaning, discharge after reaching standard.
Sewage after process is carried out to the mensuration of COD, ammonia nitrogen, turbidity, COD is 45mg/L, and ammonia nitrogen is 3mg/L, and turbidity is not higher than 1NTU.
Comparative example 1
This comparative example is the membrane-bioreactor sewage water treatment system comprising anaerobic pond, anoxic pond and Aerobic Pond, and its concrete structure is as Fig. 2.
1, anaerobic pond; 2, anoxic pond; 3, Aerobic Pond; 4, membrane cisterna; 5 membrane modules; 6, anoxic-anaerobism reflux pump; 7, aerobic-anaerobic reflux pump; 8, membrane cisterna-aerobic reflux pump.
As seen from Figure 2, if do not add biologic packing material, then need anaerobic pond, anoxic pond and Aerobic Pond three treating ponds, also add anoxic-anaerobism reflux pump and membrane cisterna-aerobic reflux pump, cost of idleness, takes up room, and, in the process of process, the turnover rate of mud between different treating ponds is large, and in same pond, microbe species mixes, and easily occurs the defect mutually suppressed.
Comparative example 2
The present embodiment relates to the sewage water treatment method of the membrane bioreactor Sewage treatment systems of anaerobic pond, anaerobic pond and Aerobic Pond.
1, sewage enters anaerobic pond, and in anaerobic pond, sludge concentration is 4 ~ 5mg/L, stops 2 ~ 3h, passes into anoxic pond.
2, in anoxic pond, control dissolved oxygen amount is 1 ~ 2mg/L, and sludge concentration is 4 ~ 6mg/L, stops 4h, passes into Aerobic Pond.Meanwhile, the mixed solution in anoxic pond is back to anaerobic pond, to balance sludge concentration by lack-detesting sludge reflux pump.
3, in Aerobic Pond, control dissolved oxygen is 2 ~ 4mg/L, stops 4h, and meanwhile, the mixed solution in Aerobic Pond is back to anoxic pond is degraded further in anaerobic pond to provide nitric nitrogen by well-scarce sludge reflux pump.
4, the process in membrane cisterna is condition is under the filteration of membrane module, obtains the sewage after processing.Meanwhile, membrane cisterna mixed-liquor return to Aerobic Pond, to balance the mixed liquid concentration in each treating pond.
Compare with embodiment 2 ~ 4, complicated process steps, processing efficiency is low, and the COD of sewage after final process is 55mg/L, and ammonia nitrogen is 6mg/L, and turbidity is not higher than 1NTU, and effect also will be worse than embodiment 2 ~ 4.
Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (9)
1. a film-bioreactor sewage treatment unit, comprise the anaerobic pond, Aerobic Pond and the membrane cisterna that connect successively, between described anaerobic pond and Aerobic Pond, be connected with reflux pump, in described anaerobic pond and Aerobic Pond, be all added with active sludge and biologic packing material, in described membrane cisterna, be provided with ultra-filtration membrane.
2. film-bioreactor sewage treatment unit according to claim 1, is characterized in that, described biologic packing material is that porousness is cylindric, and the diameter of described biologic packing material is 6 ~ 14mm, and height is 6 ~ 14mm, and specific surface area is 1000 ~ 1400m
2/ m
3.
3. membrane bioreactor sewage treatment unit according to claim 1 and 2, is characterized in that, described biologic packing material fills in bottom described anaerobic pond or described Aerobic Pond pond, 1/2 ~ 1/3 of described anaerobic pond or described Aerobic Pond pond volume.
4. film-bioreactor sewage treatment unit according to claim 3, is characterized in that, the active sludge in described anaerobic pond and Aerobic Pond is all attached to described biologic packing material surface.
5. the film-bioreactor sewage treatment unit according to claim 1 or 4, is characterized in that, be provided with agitator at the bottom of described anaerobic pond pond, water outlet arranges filter.
6. film-bioreactor sewage treatment unit according to claim 5, is characterized in that, arrange aeration plate bottom described Aerobic Pond, water outlet arranges filter.
7. the film-bioreactor sewage treatment unit according to claim 1 or 6, is characterized in that, described ultra-filtration membrane is ZeeWeed 500DX membrane module.
8. one way of life Sewage treatment systems, is characterized in that, comprises the coarse rack, equalizing tank, aerated grit chamber, ultra-fine grid and the film-bioreactor sewage treatment unit described in any one of claim 1 ~ 7 that are connected successively.
9. utilize the method that described in any one of claim 1 ~ 7, film-bioreactor sewage treatment unit is disposed of sewage, it is characterized in that, comprise the steps:
1) sewage enters described anaerobic pond, the dissolved oxygen controlled in described anaerobic pond is 0.1 ~ 1mg/L, sewage is stopping 3 ~ 5h in described anaerobic pond, through the Degradation of described filling surface Microbial Communities in Activated Sludge, nitric nitrogen in sewage is converted to nitrogen, organism in sewage, by initial breakdown, obtains the sewage of preliminary treatment;
2) sewage of described preliminary treatment enters described Aerobic Pond, the dissolved oxygen controlled in described sewage is 2 ~ 4mg/L, sewage is stopping 7 ~ 9h in described Aerobic Pond, through the Degradation of described filling surface Microbial Communities in Activated Sludge, ammonium nitrogen in sewage is converted into nitric nitrogen, organism in sewage is further degraded, obtain the sewage of process further, the sewage of described further process is back to described anaerobic pond through described reflux pump, again through step 1) described in process, nitric nitrogen in sewage is converted into nitrogen, processed laggard enter described Aerobic Pond, the sewage of ammonia must be removed,
3) sewage of described removal ammonia is passed into described membrane cisterna, adopt ZW500DX membrane module, filtering accuracy is 0.02 ~ 0.06 micron, and design flux 20 ~ 24LMH, carries out membrane filtration to the sewage of described removal ammonia, obtain clean water;
4) by the water disinfection of described cleaning, discharge after reaching standard.
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| CN105645684A (en) * | 2016-01-13 | 2016-06-08 | 美之贺机械（无锡）有限公司 | Organic wastewater purification and recycling method and device |
| CN106219751A (en) * | 2016-08-29 | 2016-12-14 | 湖州至美生物科技有限公司 | A kind of immobilization functional microorganism advanced waste treatment apparatus and technique |
| CN106746357A (en) * | 2017-01-24 | 2017-05-31 | 北京安国水道自控工程技术有限公司 | A kind of sewage-treatment plant |
| CN107935179A (en) * | 2017-12-05 | 2018-04-20 | 上海碧禹水务工程有限公司 | A kind of integrated domestic sewage treatment device using MBR techniques |
| CN108503123A (en) * | 2017-02-25 | 2018-09-07 | 新乡市新能环保工程有限公司 | Industrial water drainage treatment process containing high concentration organic contaminant |
| CN110451633A (en) * | 2019-08-19 | 2019-11-15 | 苏州永沁泉智能设备有限公司 | A kind of super hydrophilic bio-compatible carbon fiber and without sludge MBR sewage disposal system |
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| CN113860653A (en) * | 2021-10-27 | 2021-12-31 | 华电水务科技股份有限公司 | Sewage treatment system and process utilizing filamentous fungi and controlling sludge bulking |
| CN114956326A (en) * | 2021-02-22 | 2022-08-30 | 青岛冠中生态股份有限公司 | Rapid debugging and running method suitable for small and medium-sized sewage treatment systems |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645684A (en) * | 2016-01-13 | 2016-06-08 | 美之贺机械（无锡）有限公司 | Organic wastewater purification and recycling method and device |
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| CN106746357A (en) * | 2017-01-24 | 2017-05-31 | 北京安国水道自控工程技术有限公司 | A kind of sewage-treatment plant |
| CN108503123A (en) * | 2017-02-25 | 2018-09-07 | 新乡市新能环保工程有限公司 | Industrial water drainage treatment process containing high concentration organic contaminant |
| CN107935179A (en) * | 2017-12-05 | 2018-04-20 | 上海碧禹水务工程有限公司 | A kind of integrated domestic sewage treatment device using MBR techniques |
| CN110451633A (en) * | 2019-08-19 | 2019-11-15 | 苏州永沁泉智能设备有限公司 | A kind of super hydrophilic bio-compatible carbon fiber and without sludge MBR sewage disposal system |
| CN111410361A (en) * | 2020-03-16 | 2020-07-14 | 上海世浦泰膜科技有限公司 | Multifunctional sewage treatment device and treatment process thereof |
| CN114956326A (en) * | 2021-02-22 | 2022-08-30 | 青岛冠中生态股份有限公司 | Rapid debugging and running method suitable for small and medium-sized sewage treatment systems |
| CN113860653A (en) * | 2021-10-27 | 2021-12-31 | 华电水务科技股份有限公司 | Sewage treatment system and process utilizing filamentous fungi and controlling sludge bulking |
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