CN107986433A - A kind of porous aggregate cladded type MBR devices and sewage water treatment method - Google Patents
A kind of porous aggregate cladded type MBR devices and sewage water treatment method Download PDFInfo
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- CN107986433A CN107986433A CN201711348430.2A CN201711348430A CN107986433A CN 107986433 A CN107986433 A CN 107986433A CN 201711348430 A CN201711348430 A CN 201711348430A CN 107986433 A CN107986433 A CN 107986433A
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
- Activated Sludge Processes (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention discloses a kind of porous aggregate cladded type MBR devices and sewage water treatment method, the present apparatus is cased with mandruka filler outside ceramic film component, sponge filler can surround ceramic film component and rotate, cleaning ceramic membrane module is acted on using the physical friction of porous polyurethane sponge filler, alleviate the membrane pollution problem of MBR, backwash frequency is reduced, MBR system remains to normal operation in mantle friction cleaning process, and does not influence outlet effect.Porous polyurethane sponge filler enriched biological film, is nearly free from excess sludge, and filler is replaceable, also repeatable after alkaline solution cleans to utilize.MBR biochemical reaction tanks are combined with moving-burden bed reactor, biomass is improved, has ensured effluent quality.
Description
Technical field
The present invention relates to a kind of porous aggregate cladded type MBR devices and sewage water treatment method, for treated sewage.
Background technology
The sewage treatment technique organically combined as UF membrane and biotechnology, membrane bioreactor（Membrane
Bioreactor, MBR）With remarkable advantages such as effluent quality good stable, the small, convenient operation and managements of installation area,
There is powerful competitiveness in terms of municipal sewage, Industrial Wastewater Treatment and Treated sewage reusing, be highly valued in the world, quilt
It is considered as " best practicable technology ", application prospect is boundless.
But membrane pollution problem but perplexs MBR operations all the time.For the higher sewage of the content of organics such as sanitary sewage
For, the membrane module surface in MBR easily forms biological pollution and even forms gel layer.If MBR film sludge loadings are excessive, not only
It cannot be guaranteed that the removal rate of pollutant, conversely can also promote and aggravate fouling membrane, therefore film has to be cleaned in time.Often
Cleaning technique, either physical cleaning, outer dipping chemical cleaning or chemical cleaning, not only take time and effort, add fortune
Row cost, membrane module cleaning is not thorough, and repeats to be turned off and on equipment, can reduce its service life.Therefore, MBR techniques are more
Properly with as advanced treatment process, III class water body is exceeded only for the relatively low sewage of organic pollution concentration, such as water quality index
Micro-polluted water of standard etc..
In recent years, domestic and international relevant expert and engineers and technicians continuously improved in the method for operation and effect of MBR,
Try hard to reduce fouling membrane on the premise of contaminant removal efficiency is ensured.For example, floating stuffing, activated carbon etc. are added altogether in MBR,
MBR and the advantages of moving-burden bed reactor are blended, on the one hand add active biomass, improves pollutant especially ammonia nitrogen
Removal effect, on the other hand reduces suspended active sludge content, allows attached biological film to play a role as far as possible, reduces fouling membrane.
However, the actual effect of control membrane fouling and unobvious, cleaned in MBR operational process frequent.In fact, the form of filler is a variety of
It is various, there are suspended state, fixed, spherical, ring dress, threadiness, material is also not quite similar, all with preferable hydrophilic effect, energy
Enough improve inside reactor content of microorganisms.Although however, there is minority on being reduced using floating stuffing using hydraulics
The research of fouling membrane, but produce little effect.
The content of the invention
The defects of for the prior art, the present invention provide a kind of porous aggregate cladded type MBR devices and sewage water treatment method,
Solve the problems, such as that existing MBR biofilm reactors are easy to pollute and it is of high cost to replace membrane module.
In order to solve the technical problem, the technical solution adopted by the present invention is：A kind of porous aggregate cladded type MBR dresses
Put, including reaction tank, more than one group of ceramic film component being arranged in reaction tank and the water inlet for being arranged at reaction tank upper end
Pipe, water inlet pipe are equipped with intake pump, sponge filler are arranged with outside every group of ceramic film component, sponge filler is connected with driving, and it is enclosed
Around the rotating drive component of ceramic film component；The lower end sealing of every group of ceramic film component, upper end are communicated with collecting pipe, every group of ceramics
The collecting pipe of membrane module is collected to collection manifold, collects manifold and is equipped with water outlet pump and is connected to water tank；Water tank also connects
Backwash tube is connected with, backwash tube is equipped with backwashing pump and is connected with the collecting pipe of every group of ceramic film component；Further include exposure
Gas system, aerating system include air compressor machine, aeration tube and aeration head, and aeration tube extends to reaction tank bottom by air compressor machine, aeration
Head is on aeration tube.
Porous aggregate cladded type MBR devices of the present invention, the driving component include turncap, shaft, rotating disk and
Motor, turncap are sleeved on sponge filler top, and shaft is fixedly attached between rotating disk and turncap, rotating disk and motor phase
Even.
Porous aggregate cladded type MBR devices of the present invention, are provided with the hole to connect in turncap, shaft and rotating disk,
Collecting pipe connects ceramic film component by the hole.
Porous aggregate cladded type MBR devices of the present invention, the sponge filler are porous polyurethane sponge filler, sponge
Biomembrane is filled with filler.
Porous aggregate cladded type MBR devices of the present invention, reaction tank bottom are connected with blow-down pipe, and blow-down pipe is equipped with and puts
Blank pipe valve.
Porous aggregate cladded type MBR devices of the present invention, are additionally provided with activated sludge in reaction tank.
Porous aggregate cladded type MBR devices of the present invention, the collector pipe of every group of ceramic component, collect manifold and backwash
Valve is equipped with pipe.
Porous aggregate cladded type MBR devices of the present invention, ceramic film component are tubulose microfiltration membranes, aperture for 0.10~
0.2 μm, operating pressure is 0.05~0.15Mpa, and operating temperature is 5~40 DEG C.
The invention also discloses a kind of sewage water treatment method, this method is based on porous aggregate cladded type described in claim 1
MBR devices, comprise the following steps：S01）, micro-polluted water reaction tank is entered by water inlet pipe under the swabbing action of intake pump,
Under the action of aerating system, ceramic film component and sponge filler, the pollutant in micro-polluted water is degraded and is metabolized, and water quality obtains
Purification, purified micro-polluted water enter collecting pipe by the inner void on sponge filler under the swabbing action of water outlet pump,
Water in collecting pipe enters water tank after being summarised in collection manifold；S02）, when membrane flux reduce by 30% when or membrane pressure be higher than
0.15Mpa, less than 0.4Mpa when, drive component drive sponge filler rotate, sponge filler ceramic film component surface rotation scrapes
Wipe, the biomembrane that a part is attached on ceramic film component surface is struck off；S03）, when membrane pressure is higher than 0.4Mpa, intake pump
And water outlet pump is stopped, backwashing pump is started to work, and the water in water tank passes through collection under the swabbing action of backwashing pump
Manifold, collecting pipe enter inside ceramic film component, are finally oozed out from the micropore of film, and into reaction tank, backwash terminates, backwash
Pump is stopped, and at the same time, intake pump and water outlet pump are opened, and reenters operation phase, degraded and metabolism micro-polluted water.
Beneficial effects of the present invention：The present invention is cased with mandruka filler outside ceramic film component, and sponge filler can enclose
Rotated around ceramic film component, act on cleaning ceramic membrane module using the physical friction of porous polyurethane sponge filler, alleviate MBR
Membrane pollution problem, reduce backwash frequency, MBR system remains to normal operation in mantle friction cleaning process, and does not influence
Outlet effect.Porous polyurethane sponge filler enriched biological film, is nearly free from excess sludge, filler is replaceable, through parlkaline
It is also repeatable after solution cleaning to utilize.MBR biochemical reaction tanks are combined with moving-burden bed reactor, biomass is improved, has ensured
Water water quality.Rotating disk and turncap are buckled on porous aggregate, assembling easy to disassemble, and the replacement, maintenance for the later stage are provided convenience.
The configuration of the present invention is simple, fouling membrane cleaning speed is fast, effect is good, reduces cost of sewage disposal, and characteristic, saves capital construction cost,
Generally realize the further processing of micro-polluted water so that effluent quality index is better than II class water body standard.
Brief description of the drawings
Fig. 1 is the structure diagram of porous aggregate cladded type MBR devices of the present invention；
In figure：1st, intake pump, 2, water outlet pump, 3, backwashing pump, 4, air compressor machine, 5, water tank, 6, water inlet pipe, 7, aerating system,
7-1, aeration head, 8, backwash tube, 9, collect manifold, 10, rotating disk, 11, shaft, 12, turncap, 13, cellular polyurethane sea
Continuous filler, 14, biomembrane, 15, reaction tank, 16, ceramic film component, 17, outfall sewer, 18, blow-down pipe, 19, emptying tube valve,
20th, collecting pipe, 21, membrane module control valve, 22, activated sludge, 23, motor, 24, flowing water Valve, 25, back flush valves.
Embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of porous aggregate cladded type MBR devices, including it is reaction tank 15, ceramic film component 16, porous poly-
Urethane sponge filler 13, aerating system 7, water outlet pump 2, backwash pump 3 and water tank 5.Ceramic film component 16, cellular polyurethane
Sponge filler 13, aerating system 7 are inside reaction tank 15.Water outlet pump 2, backwash pump 3 and water tank 5 are located at outside reactor
Portion.
The reaction tank 15 is the square non-covered container made of organic glass.Water inlet pipe 6 is connected with 15 top of reaction tank,
Water inlet pipe 6 is equipped with intake pump 1.The aerating system 7 is located at 15 bottom of reaction tank, and the air of aerating system 7 is by reaction tank 15
Exterior air compressor machine 4 supplies, and is discharged into by aeration head 7-1 in reaction tank 15.Growth has suspended state activity dirt in reaction tank 15
Mud 22.
The blow-down pipe 18 is arranged on the bottom of reaction tank 13, and emptying tube valve 19 is provided with blow-down pipe 18.
Some groups of tubular ceramic membrane modules 16 are fixed and are immersed in below reactor water level, tubulose membrane module lower end envelope
Stifled, upper end is effluent collection pipe 20, and collecting pipe 20 is equipped with membrane module control valve 21.The collecting pipe direct bank remittance service collection of all membrane modules
To manifold 9 is collected, water tank 5 is finally pumped to by water outlet pump 2.The water outlet pump front end is provided with flowing water Valve 24.Described
Go out outside water tank to be provided with outfall sewer 17.
13 quality of porous polyurethane sponge filler is harder, is tightly coated on 16 periphery of ceramic film component, polyurethane sea
Continuous 13 surface of filler and growth inside have biomembrane 14.Wrapped by turncap 12 periphery on 13 top of porous polyurethane sponge filler
Wrap up in, 12 top of turncap is connected with shaft 11.Shaft 11 is hollow out hollow cylindrical, is wrapped outside collecting pipe 20.Shaft 11 with
Rotating disk 10 is connected, and rotating disk 10 is located at more than water level, membrane module control valve is below 21.Rotating disk 10 connects with external motor 23
Connect, motor 23 drives rotating disk 10 to rotate.
Described 8 one end of backwash tube is connected to out on water tank 5, and the other end, which is connected to, to be collected on manifold 9.Backwash tube 8
On be provided with backwashing pump 3, backwash electrically operated valve 25 is arranged on backwashing pump 3 and backwash tube 8 with collecting 9 crosspoints of manifold
Between.
In the present embodiment, the ceramic film component is tubulose microfiltration membranes, and aperture is 0.10~0.2 μm, the filter membrane
Operating pressure is 0.05~0.15Mpa, and operating temperature is 5~40 DEG C.
In the present embodiment, the porous polyurethane sponge filler 13 is hard hydrophilic biologic packing material, on the one hand can be real
The apposition growth of existing biomembrane, improves biomass in reactor, on the other hand can be in the drive of rotating disk 10 and turncap 12
Lower rotation, the biomembrane that will be attached on tubular ceramic membrane module 16 strike off, and reduce fouling membrane.
, can be by ceramic film component and sponge filler from reaction tank when longtime running biomembrane is thicker in the present embodiment
Middle taking-up is cleaned.
Present invention fusion MBR（Realized by ceramic film component）And Biological Contact Oxidation Process（Realized by sponge filler）
Both the advantages of, and using filler characteristic in itself solve existing MBR biofilm reactors it is easy to pollute and replace membrane module into
The problem of this is high, and a kind of porous aggregate cladded type MBR apparatus systems and its wastewater treatment method for handling micro-polluted water is provided.
The operation principle of porous aggregate cladded type MBR devices is described in the present embodiment：Porous aggregate cladded type MBR devices pair
The processing of contaminant water includes biodegradation process and physical separating process.First, micro-polluted water is lifted by intake pump 1, by into
Water pipe 6 is drained into MBR reaction tanks 15.Aerating system increases the dissolved oxygen in water and plays certain stirring action, in activity
During the oxygen produced under the action of biomembrane 14 on sludge 22 and porous polyurethane sponge filler 13 using aeration will intake
Contaminant degradation conversion.Water after processing through filler gap and passes through ceramic film component filter opening under the action of water outlet pump 2
Flow into inside ceramic film component 16, then by collecting pipe 20, water header 2 is collected to water tank 5.With membrane flux decline and
The increase of transmembrane pressure, the cleaning of film are realized by two processes：Film surface friction cleaning and backwash.Film surface friction is clear
It is the appearance for carrying out ceramic membrane under the rotation of rotating disk and turncap using coarse porous spongy polyester porous aggregate to wash
The cleaning in face；Backwash is will to go out high-pressure water pump by backwashing pump to return ceramic membrane, and the particulate matter in MBR membrane apertures is rushed
Out, the depth of micro-filtration filter opening is cleared up.In conclusion by controlling the specific service condition of MBR reaction tanks, as sludge is dense
The parameter settings such as degree, dissolved oxygen, film surface friction cleaning frequency, back washing strength and operational means realize the removal of organic matter,
Generally realize the advanced treating of micro-polluted water.
Embodiment 2
Present embodiment discloses a kind of method that sewage disposal is carried out using porous aggregate cladded type MBR devices described in embodiment 1,
Comprise the following steps：
First, the operation phase：
Water inlet（Micro-polluted water）Reaction tank 15 is entered by water inlet pipe 6 under the swabbing action of intake pump 1, in air compressor machine 4, aeration
Under conditions of system 7 and aeration head 7-1 normal works, the pollutant in micro-polluted water is by activated sludge 22 and cellular polyurethane
Biomembrane 14 on sponge filler 13 is degraded and is metabolized, and water quality is purified.Activated sludge MLSS is 200mg/ in reaction tank 15
L, dissolved oxygen concentration are 5mg/L~6mg/L, 12~24h of hydraulic detention time.Purified micro-polluted water passes through cellular polyurethane
Inner void on sponge filler 13, permeation ceramic membrane 16, which is pumped to, under 2 swabbing action of water outlet pump collects manifold 9 and water outlet
Water tank 5.
2nd, film surface friction wash phase：
When membrane flux reduces by 30% or membrane pressure is higher than 0.15Mpa（Less than 0.4Mpa）When, motor drives under power control cabinet manipulation
Shaft 11, turncap 12 and rotating disk 10 rotate, this final moment of torsion drives porous polyurethane sponge filler 13 in 16 table of ceramic membrane
Face rotation scrapes, and the biomembrane that a part is attached to 16 surface of ceramic membrane strikes off.
3rd, backwash stage：
When membrane pressure is higher than 0.4Mpa, intake pump 1 and water outlet pump 2 are stopped, and flowing water Valve 24 is closed.Backwash motor-driven valve
Door 25 is opened, and backwashing water is the water outlet in water tank 5, by collecting manifold 9, receiving under the swabbing action of backwashing pump 3
Collector 20 enters inside ceramic membrane 16, is finally oozed out from the micropore of film, into reaction tank 15.After 20min, backwash terminates, instead
Flushing pump 3 is stopped, while backwashes electrically operated valve 25 and close, and flowing water Valve 24, intake pump 1 and water outlet pump 2 are opened, weight
The new operator scheme for entering the operation phase.
In the present embodiment, backwashing pump 3 described in step 1 and backwash electrically operated valve 25 are intermittent duty, and backwash is electronic
Valve 25 can only open one with flowing water Valve 24.
Using the effect of following verification experimental verifications present invention：
Solve the problems, such as that existing MBR films are easy to pollute using the present invention and replace membrane module wastewater treatment method of high cost, press
Following steps carry out：
First, the operation phase：
COD is 50 ~ 60mg/L, BOD5For 10 ~ 20mg/L, ammonia nitrogen be 5 ~ 8mg/L, total phosphorus is 0.2 ~ 0.5mg/L and pH value is 6.0
~ 7.0 water inlet（Micro-polluted water）Reaction tank 15 is entered by water inlet pipe 6 under the swabbing action of intake pump 1, in air compressor machine 4, is exposed
Under conditions of gas system 7 and aeration head 7-1 normal works, the pollutant in micro-polluted water is by activated sludge 22 and porous poly- ammonia
Biomembrane 14 on ester sponge filler 13 is degraded and is metabolized, and water quality is purified.Activated sludge MLSS is in reaction tank 15
200mg/L, dissolved oxygen concentration are 5mg/L~6mg/L, 12~24h of hydraulic detention time.Purified micro-polluted water passes through porous
Inner void on polyurethane sponge filler 13, under 2 swabbing action of water outlet pump permeation ceramic membrane 16 be pumped to collect manifold 9 with
And go out water tank 5.
2nd, film surface friction wash phase：
When membrane flux reduces by 30% or membrane pressure is higher than 0.15Mpa（Less than 0.4Mpa）When, motor drives under power control cabinet manipulation
Shaft 11, turncap 12 and rotating disk 10 rotate, this final moment of torsion drives porous polyurethane sponge filler 13 in 16 table of ceramic membrane
Face rotation scrapes, and the biomembrane that a part is attached to 16 surface of ceramic membrane strikes off.
3rd, backwash stage：
When membrane pressure is higher than 0.4Mpa, intake pump 1 and water outlet pump 2 are stopped, and flowing water Valve 24 is closed.Backwash motor-driven valve
Door 25 is opened, and backwashing water is the water outlet in water tank 5, by collecting manifold 9, receiving under the swabbing action of backwashing pump 3
Collector 20 enters inside ceramic membrane 16, is finally oozed out from the micropore of film, into reaction tank 15.After 20min, backwash terminates, instead
Flushing pump 3 is stopped, while backwashes electrically operated valve 25 and close, and flowing water Valve 24, intake pump 1 and water outlet pump 2 are opened, weight
The new operator scheme for entering the operation phase.
Using using national water examination standard（GB 5749-2006）Detect this experiment effluent index COD<15mg/L、
BOD5For<3mg/L, ammonia nitrogen<0.5mg/L and total phosphorus<0.1mg/L, better than II class water body standard.
Described above is only that the basic principle of the present invention and preferred embodiment, those skilled in the art do according to the present invention
The improvement and replacement gone out, belongs to protection scope of the present invention.
Claims (9)
1. a kind of porous aggregate cladded type MBR devices, including reaction tank, more than one group of ceramic membrane group being arranged in reaction tank
Part and the water inlet pipe for being arranged at reaction tank upper end, water inlet pipe are equipped with intake pump, it is characterised in that：Outside every group of ceramic film component
Sponge filler is arranged with, sponge filler is connected with driving, and it surrounds the rotating drive component of ceramic film component；Every group of ceramic membrane
The lower end sealing of component, upper end are communicated with collecting pipe, and the collecting pipe of every group of ceramic film component is collected to collection manifold, collects total
Pipe is equipped with water outlet pump and is connected to water tank；Water tank is also communicated with backwash tube, and backwash tube is equipped with backwashing pump simultaneously
It is connected with the collecting pipe of every group of ceramic film component；Aerating system is further included, aerating system includes air compressor machine, aeration tube and aeration
Head, aeration tube extend to reaction tank bottom by air compressor machine, and aeration head is located on aeration tube.
2. porous aggregate cladded type MBR devices according to claim 1, it is characterised in that：The driving component includes rotation
Turn cap, shaft, rotating disk and motor, turncap is sleeved on sponge filler top, shaft be fixedly connected on rotating disk and turncap it
Between, rotating disk is connected with motor.
3. porous aggregate cladded type MBR devices according to claim 2, it is characterised in that：Turncap, shaft and rotating disk
On be provided with the hole to connect, collecting pipe passes through the hole and connects ceramic film component.
4. porous aggregate cladded type MBR devices according to claim 1, it is characterised in that：The sponge filler is porous
Polyurethane sponge filler, sponge filler is interior to be filled with biomembrane.
5. porous aggregate cladded type MBR devices according to claim 1, it is characterised in that：Reaction tank bottom, which is connected with, puts
Blank pipe, blow-down pipe are equipped with emptying tube valve.
6. porous aggregate cladded type MBR devices according to claim 1, it is characterised in that：Activity is additionally provided with reaction tank
Sludge.
7. porous aggregate cladded type MBR devices according to claim 1, it is characterised in that：Every group of ceramic component catchments
Valve is equipped with pipe, collection manifold and backwash tube.
8. porous aggregate cladded type MBR devices according to claim 1, it is characterised in that：Ceramic film component is micro- for tubulose
Filter membrane, aperture are 0.10~0.2 μm, and operating pressure is 0.05~0.15Mpa, and operating temperature is 5~40 DEG C.
A kind of 9. sewage water treatment method, it is characterised in that：This method is based on porous aggregate cladded type MBR described in claim 1 and fills
Put, comprise the following steps：S01）, micro-polluted water reaction tank is entered by water inlet pipe under the swabbing action of intake pump, be aerated
Under the action of system, ceramic film component and sponge filler, the pollutant in micro-polluted water is degraded and is metabolized, and water quality obtains only
Change, purified micro-polluted water is entered collecting pipe under the swabbing action of water outlet pump, received by the inner void on sponge filler
Water in collector enters water tank after being summarised in collection manifold；S02）, when membrane flux reduce by 30% when or membrane pressure be higher than
0.15Mpa, less than 0.4Mpa when, drive component drive sponge filler rotate, sponge filler ceramic film component surface rotation scrapes
Wipe, the biomembrane that a part is attached on ceramic film component surface is struck off；S03）, when membrane pressure is higher than 0.4Mpa, intake pump
And water outlet pump is stopped, backwashing pump is started to work, and the water in water tank passes through collection under the swabbing action of backwashing pump
Manifold, collecting pipe enter inside ceramic film component, are finally oozed out from the micropore of film, and into reaction tank, backwash terminates, backwash
Pump is stopped, and at the same time, intake pump and water outlet pump are opened, and reenters operation phase, degraded and metabolism micro-polluted water.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205774A (en) * | 2018-10-19 | 2019-01-15 | 佛山科学技术学院 | A kind of MBR membrane bioreactor based on A2O2 innovative technology |
| CN112320932A (en) * | 2020-10-20 | 2021-02-05 | 江西嘉陶无机材料有限公司 | Hollow plate type ceramic membrane bioreactor and wastewater treatment method |
| CN113264586A (en) * | 2021-06-02 | 2021-08-17 | 知和环保科技有限公司 | MBR (membrane bioreactor) process for treating nitrate wastewater |
| CN114275897A (en) * | 2021-12-29 | 2022-04-05 | 华夏碧水环保科技有限公司 | Denitrification system and starting method thereof |
| CN116236908A (en) * | 2023-05-12 | 2023-06-09 | 山东建筑大学 | Nanofiltration membrane component for wastewater treatment |
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| CN104355401A (en) * | 2014-10-27 | 2015-02-18 | 浙江开创环保科技有限公司 | Integral composite membrane bioreactor device |
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| CN107285467A (en) * | 2017-07-28 | 2017-10-24 | 大连宇都环境技术材料有限公司 | MBBR and MBR integrated technique and equipment for water treatment plant |
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| CN113264586A (en) * | 2021-06-02 | 2021-08-17 | 知和环保科技有限公司 | MBR (membrane bioreactor) process for treating nitrate wastewater |
| CN114275897A (en) * | 2021-12-29 | 2022-04-05 | 华夏碧水环保科技有限公司 | Denitrification system and starting method thereof |
| CN116236908A (en) * | 2023-05-12 | 2023-06-09 | 山东建筑大学 | Nanofiltration membrane component for wastewater treatment |
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