CN106517496A - Gravity-flow membrane bioreactor with low energy consumption - Google Patents
Gravity-flow membrane bioreactor with low energy consumption Download PDFInfo
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- CN106517496A CN106517496A CN201611050361.2A CN201611050361A CN106517496A CN 106517496 A CN106517496 A CN 106517496A CN 201611050361 A CN201611050361 A CN 201611050361A CN 106517496 A CN106517496 A CN 106517496A
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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
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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)
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention provides a gravity-flow membrane bioreactor with low energy consumption. The gravity-flow membrane bioreactor comprises a reactor tank, a guide cylinder, an aerator, a MBR membrane assembly, an inflow water distribution system, a MBR fan, a process fan, a vacuum suction system, a constant-flow automatic regulation system and an internal sludge circulation system. According to the invention, a MBR membrane is arranged on the top of the bioreactor and siphon is realized through full use of liquid level difference, so power-free water production is realized; since the MBR membrane assembly is located on the upper part of a biochemical aeration system, air for biochemical aeration can be fully used again for scrubbing of the membrane, so considerable air needed in scrubbing of the membrane is saved; and an anoxic area is formed in the bottom of a reaction zone, so a high-efficiency A/O denitrification function is obtained. The gravity-flow membrane bioreactor provided by the invention is a high-efficiency biochemical system realizes organic combination of power-free water production, reduction in air demand, high oxygen transfer efficiency, integrated anoxic/aerobic treatment, sludge backflow without extra power, production of high-quality water and the like.
Description
Technical field
The present invention relates to a kind of plant equipment, more particularly, to a kind of low power consuming gravity flow membrane bioreactor.
Background technology
Conventional waste water treatment process is mostly the biological treatment of A/O- second ponds according to actual water quality demand at present
Or the improvement for traditional A/O- second ponds or deformation technique, also it is presently the most one of water treatment technology of maturation.But
Emission request and reuse require higher and higher today, and A/O- second ponds technique can not meet high discharge standard and reuse
Requirement.In this context, MBR membrane process has also obtained day by day being widely applied, and replaces traditional two to sink using MBR membrane modules
Pond, in the membrane cisterna that membrane module is placed in Aerobic Pond end or is separately provided, is carried out water and activated sludge is produced by suction pump
Separate, it is possible to obtain good producing water water quality.
But the MBR techniques of routine are placed in MBR films inside biochemistry pool, or increase single MBR after biochemistry pool
Membrane cisterna, and biological tank and membrane cisterna generally all adopt the depth of water in 4-6m reinforced concrete structures or more shallow integrated apparatus, pass through
Water and activated sludge after process is separated from membrane module by suction pump, and activated sludge is returned by sludge reflux pump vast scale
Stream is balancing the sludge concentration of biological tank and membrane cisterna.
Therefore, conventional MBR techniques yet suffer from problems with：
1st, the product water of system needs to be aspirated by suction pump under normal circumstances, needs power consumption；
2nd, the film scouring fan delivery demand of configuration is very big, and for alleviating the pollution of membranous system, this is also MBR techniques
Important energy source consumption is originated；
3rd, for balanced biological tank and the sludge concentration of membrane cisterna, need to configure the sludge reflux of vast scale；
4th, to realize biological denitrificaion function, need to arrange the mixed-liquor return of vast scale；
5th, conventional pond is designed deeply, causes the oxygen transfer efficiency of system low；Although floor space is relative to traditional handicraft
Have and largely reduce, but still the increasingly deficient demand in existing soil can not be changed.
The content of the invention
The purpose of the present invention, exactly in order to solve the above problems, there is provided a kind of low power consuming gravity flow membrane bioreactor.
In order to achieve the above object, the present invention is achieved through the following technical solutions：A kind of low power consuming gravity flow film is biological
Reactor, including reactor tank body, guide shell, aerator, MBR membrane modules, water inlet water distribution system, MBR blower fans, technique blower fan,
Vacuum pick-up system, constant current automatic regulating system and inner circulation of sludge system；Wherein guide shell is arranged in reactor tank body
Bottom, aerator are arranged on the middle part in guide shell, and MBR membrane modules are arranged on the top in reactor tank body, cloth water system of intaking
Sewage through pretreatment is passed through intake pump and water-locator and uniformly sends into guide shell from the bottom of guide shell by system, and MBR blower fans lead to
Cross wind-distributing pipe and air is uniformly sent into into MBR membrane modules from the lower section of MBR membrane modules, air is sent into by ajutage by technique blower fan
Aerator, vacuum pick-up system and constant current automatic regulating system are connected with the water production pipeline of MBR membrane modules by pipeline respectively, dirty
The sludge of reactor tank base is pumped to aerator by circulating pump and water collector and is carried with technique blower fan by mud internal circulation system
For gas be sufficiently mixed.
Aerobic functional area is formed by aeration on guide shell top, anoxia functional area is formed in guide shell bottom, it is whole
Individual reactor becomes anoxia/aerobic alternate reactor with denitrification functions.
The MBR membrane modules adopt filtering accuracy for 0.01 μm -1 μm of membrane component, realize the height of activated sludge and filtrate
Effect is separated, it is ensured that delivery turbidity is less than 1NTU, and float is less than 5mg/L.
Water production pipeline is evacuated by the vacuum pick-up system using press water or air compressor machine or vacuum venturi, is produced
Water enters water production pipeline through MBR films, after water production pipeline is full of, using between water production pipeline and constant current automatic regulating system
Potential difference produces siphon effect, realizes continuous product water.
The constant current automatic regulating system realizes the control of flow by the coordinated signals of flow control valve and effusion meter.
Below each process portion and function are described in detail：
Reactor tank body：The part is the core and shell of whole biochemical reactor, and institute's pending processing sewage is all anti-
Answer, carry the place of sewage disposal and the installation site of internal build, this reactor
Tank body height is the 2-3 times of pond depth in routine biochemistry pond, and according to technique needs, including at least two regions, bottom is biological respinse
Device region, top are membrance separation regions, and the two functional areas are arranged from height space, so floor space is very
It is little.
Guide shell：The middle part being arranged in tank body, its purpose is to water inlet and recirculation water are carried out by the direction of setting
Flowing, in guide shell flows upward inside, flows downward outside guide shell, therefore is not in short flow phenomenon.
Aerator：This aerator is jet-flow aeration, and the middle part being arranged in tank body, its major function are by air and backflow
After sludge is mixed, the input air complement lysis oxygen into system, while recirculation water is uniformly mixed with water inlet, can
Do not blocked with efficient mass transfer and realization, be easy to safeguard.
MBR membrane modules：The top being arranged in reactor tank body, reactor and MBR membrane modules carry COD, BOD,
NH3The remove function of the Organic substances such as-N, while Activated Sludge Process and MBR membrane modules are carried out organic assembling by the SS that dams, it is real
Existing effluent quality is better than conventional biochemical technique.
MBR membrane module structures are tubular type, flat, doughnut curtain or pillar, and kit form set according to practical situation
Put, component size is customized according to practical situation and combines.
MBR membrane modules adopt filtering accuracy for 0.01 μm -1 μm of membrane component, realize the efficient of activated sludge and supernatant
Separate, it is ensured that delivery turbidity is less than 1NTU, float is less than 5mg/L.The material adopted by membrane component for polypropylene, polyether sulfone,
In polysulfones, armaticity polysulfones, Kynoar, polrvinyl chloride, polyketone, polyether-ketone, politef, polyethylene or polyamide
The mixture of one or more.
Water inlet water distribution system：Comprising intake pump and water-locator, its purpose is to ensure that water inlet uniformly can be transported to
Inside reactor, water-locator are arranged on the bottom of guide shell in reactor tank body, send the water inlet through pretreatment by water pump
Enter guide shell flows upward inside.
Technique blower fan：Its major function is to provide the dissolved oxygen of biochemical degradation, and dissolved oxygen is sent into reactor by blower fan
Inside, carries out being fully contacted mixing with sewage, there is provided dissolved oxygen necessary to biochemical reaction, realizes the abundant degraded of Organic substance.
On the other hand the bottom of MBR films all can be entered by wind-distributing pipe from the air quantity of technique blower fan conveying, film is cleaned, Ke Yijin
The secondary utilization of row, thus can fully reduce the energy consumption that air quantity required for film is cleaned brings.
MBR film blower fans：Its major function is to provide the scouring air quantity of membrane module, delays the pollution of membrane module so as to can
Good filtering function is maintained, higher permeant flux is maintained.MBR films blower fan under normal circumstances provides demand according to film producer
Configuration, air quantity demand is very big, and operation energy consumption is very high, and the MBR Air Quantity Requireds in the system can be significantly less than it is general
MBR film blower fans, because the system can realize with the aeration rate of secondary utilization process blower fan that film is cleaned, save the energy of film blower fan
Consumption.
Vacuum pick-up system：Using the principle of Venturi tube, water production pipeline is evacuated initially with press water, is then produced
Water will enter water producing pipe through MBR films, and the effect of siphon can be just realized after water production pipeline is full of, and MBR films just can be real
Water is continuously produced now, this design makes full use of hydraulic principle without the need for carrying out vacuum draw using compressed air.Certain vacuum
System can also adopt air compressor machine and vacuum venturi, and water production pipeline is evacuated, and start the purpose for producing water.Vacuum
System is determined specifically using any according to on-site actual situations.
Constant current automatic regulating system：Pneumatic (electronic) flow control valve and effusion meter are installed on water producing pipe road, are set
Nominal operation flow, makes pneumatic (electronic) flow control valve by the coordinated signals of effusion meter by PLC, sets when product discharge is more than
During constant flow, pneumatic (electronic) flow control valve is turned down, when water ga(u)ge reading is produced less than setting flow, PLC can be automatic
Pneumatic (electronic) flow control valve is opened greatly, you can realize that flow is constant and automatic regulation function.
Inner circulation of sludge system：It is collected by water collector (annular collector pipe), sludge is pumped to by circulating pump
The gas that aerator is provided with technique blower fan is sufficiently mixed.Mixed liquor is circulated from inside guide shell.Under normal circumstances,
Need 2-4 times of circular flow balance the sludge concentration of membrane cisterna and biological tank；And in order to realize the function of denitrogenation, need 2-4
The backflow of times nitrification liquid, it is therefore desirable to which two-stage vast scale flows back.Water collector is arranged on reactor bottom by this reactor, can be simultaneously
Realize the balance of sludge concentration and the dual-use function of denitrogenation.
The flow process of system start-up is：Start technique blower fan, technique blower fan is sent into air inside guide shell by ajutage
Non-blocking aeration device；Start MBR blower fans, air is uniformly sent into from the lower section of MBR membrane modules by MBR blower fans by wind-distributing pipe
MBR membrane modules, fully are cleaned to delay the pollution of film to film；Sewage through pretreatment is passed through by water inlet water distribution system
Water-locator is uniformly sent in guide shell from the bottom of guide shell；Vacuum pick-up system and constant current automatic regulating system are respectively by pipe
Road is connected with the water production pipeline of MBR membrane modules, starts vacuum pick-up system when producing water, discharges the air in water producing pipe road, then
Siphon is realized from water of miscarrying by gravity, by effusion meter and the coordinated signals of regulating valve in water production pipeline, realizes that constant current is produced
Water；Start inner circulation of sludge system, the dissolved oxygen that the mixed liquor of bottom and technique blower fan are provided is transported to by exposure by circulating pump
Gas system, carries out sludge circulation and carries out aeration mixing, realize effective mass transfer, therefore the capacity of resisting impact load of the system is strong.
Relative to existing MBR system and traditional second pond biosystem, the present invention has the following advantages：
Biochemical system and MBR system have spatially been carried out organic assembling by the reactor, by the aeration of biochemical process
Secondary utilization is carried out, the energy resource consumption needed for film is cleaned is greatly reduced；MBR films are placed at the top of the reactor carries out muddy water point
From making full use of the principle of liquid level difference and gravity siphon, realize unpowered product water, and obtain good producing water water quality；By water
Water producing pipe road is formed negative pressure by power vacuum pick-up system or negative-pressure vacuum suction system, you can is started and is produced water；By the exposure for optimizing
Gas system carries out efficient waterpower mixing, and the structure of this reactor is capable of achieving the efficient oxygen transmission efficiency of aerobic region, and this kind
Aerator is not easy blocking, is easy to safeguard；Water collector is arranged on into reactor bottom, the work(of anoxia can be realized in reactor bottom
Energy region, becomes whole reactor and possesses anoxia/aerobic alternate system with denitrification functions；By effusion meter and regulation
The coordinated signals of valve, realize that water is produced in constant current after producing water and starting；It is to need two-stage to return that traditional MBR techniques need denitrogenation requirement
Stream, one-level are to balance the backflow of membrane cisterna sludge concentration, and another level is to realize denitrifying mixed-liquor return, and the system only needs one
Level backflow is capable of achieving the mixed-liquor return needed for the sludge reflux and denitrification of vast scale needed for MBR techniques.Relative to MBR works
4-6m ponds deep structure is made tank body by skill, this reactor, and height is usually 2-3 times of routine biochemistry pond, is greatlyd save and is
The floor space of system.Therefore the system really effectively realizes low air quantity demand, efficient oxygen transmission efficiency, collection anoxia/aerobic and is
Integrally, it is unpowered produce water, carry out flowing back without extra power, the high-quality that floor space is little produces the efficient biochemical of the combinations such as water
System process.
It is described in detail as follows：
1st, reduce the aeration rate of membranous system：
The aeration of the technique blower fan of this reactor is arranged on the middle part of guide shell, and the aeration of MBR films is arranged on membrane module bottom
Portion, the aeration tolerance of technique blower fan membranous system can be carried out in uphill process it is secondary wash away, therefore only need to mend for film
The air quantity filled required for film is cleaned and the difference of technique aeration rate, consider further that certain surplus, therefore can substantially reduce due to film
The energy resource consumption cleaned and need, realizes the purpose of low power consuming.
2nd, unpowered product water：
MBR membrane modules are placed in into the top of the reactor, make full use of the principle of difference in height and gravity siphon i.e. can be real
The product water of existing MBR films, without using conventional MBR techniques suction pump realizing producing water, save energy resource consumption.
3rd, water is produced in constant current：
The system is made up of pneumatic (electronic) control valve and effusion meter, is started to discharge in first passage vacuum system and is produced water
The air of pipeline, produces water smoothly from after membrane component outflow, by effusion meter and the coordinated signals reality of pneumatic (electronic) regulating valve
The purpose of water is produced in existing constant current.
4th, high oxygen transmission efficiency：
The deeply more conventional biochemical reaction tank in this bioreactor pond is much higher, is the 2-3 that routine biochemistry reacts tank depth
Times, and dissolved oxygen efficiency has close relation deeply with pond, so can realize that efficient oxygen dissolving is passed relative to traditional biochemical system
Pass efficiency.
5th, biological denitrificaion function：
Backflow collector pipe is arranged on into reactor bottom (less than guide shell bottom), after reflux pump is opened, is then passed through
Mixed liquor after aeration is flowed downward by the outside of guide shell, and dissolved oxygen is gradually reduced, to reactor bottom from guide shell
Bottom enters guide shell flows upward inside, and Digestive system during decline carries out being fully contacted forming aerobic/anoxia with raw water
Alternately, denitrification functions are fully realized, therefore this reactor is to possess the reactor that anoxia/aerobic function is integrated.
6th, without the need for extra sludge reflux：
Denitrification functions are realized usually, MBR system needs to configure two return-flow systems：One sludge reflux for MBR (is
The sludge concentration of balance biological tank and membrane cisterna, it usually needs 3-4 times of capacity of returns), another is to realize denitrification functions (according to de-
Nitrogen demand, is generally also required to 2-4 times and flows back), it is required to carry out the mixed-liquor return of vast scale；And the bio-reaction zone of the system
Anti-shock loading and denitrification functions ability are realized by inner circulation of sludge system, without the need for configuring the big ratio needed for MBR system in addition
Example sludge reflux, can both realize sludge concentration it is balanced while realize denitrification functions.
7th, MBR film separation systems：
Aerobic MBR membrane modules adopt high-precision membrane component, all of product water all to be separated by film, it can be ensured that go out
Water turbidity is less than 1NTU, and even less than 0.2NTU, float are less than 5mg/L.Various forms can be arranged to according to practical situation, its
Component size is customized also dependent on practical situation and combines.
8th, group technology：
Organism fluidization bed process and the combination of MBR membrane process are really effectively realized efficient oxygen transmission by the present invention
Efficiency, set anoxia/aerobic are integrated, unpowered product water, the high yield water water quality without extra power sludge reflux etc. are organically combined
High-efficiency biochemical system, be the revolutionary handling process of a low energy consumption in sewage treatment area.
Description of the drawings
Fig. 1 is the basic structure schematic diagram of the present invention.
Specific embodiment
Referring to Fig. 1, low power consuming gravity flow membrane bioreactor of the present invention, including reactor tank body 1, guide shell 2, aerator
3rd, MBR membrane modules 4, water inlet water distribution system 5, MBR blower fans 6, technique blower fan 7, vacuum pick-up system 8, constant current automatic regulating system 9
With inner circulation of sludge system 10；Guide shell is arranged on the bottom in reactor tank body, and aerator is arranged on the middle part in guide shell,
MBR membrane modules are arranged on the top in reactor tank body, water inlet water distribution system by the sewage through pretreatment by intake pump and
Water-locator uniformly sends into guide shell from the bottom of guide shell, and MBR blower fans are equal from the lower section of MBR membrane modules by air by wind-distributing pipe
Air is sent into aerator by ajutage by even feeding MBR membrane modules, technique blower fan, and vacuum pick-up system and constant current are automatically adjusted
System is connected with the outlet pipeline of MBR membrane modules by pipeline respectively, and inner circulation of sludge system passes through circulating pump by reactor tank
The sludge of body bottom pumps to the gas that aerator provided with technique blower fan and is sufficiently mixed.
MBR membrane modules in the present invention adopt high-precision membrane component, realize the high efficiency separation of activated sludge and supernatant,
Guarantee that delivery turbidity, less than 1NTU, can be less than 0.2NTU under normal circumstances, float is less than 5mg/L.
MBR membrane module structures in the present invention be tubular type, flat, doughnut curtain or pillar, kit form according to
Practical situation is arranged, and component size is customized according to practical situation and combines.
The main working process of the present invention is as follows：
System enters reactor tank body 1 by water distribution system 5 of intaking through the sewage of pretreatment；
Sewage into reactor tank base passes through water-locator from 2 flows upward inside of guide shell；
Sewage is contacted with aerator 3 during flowing up, the dissolved oxygen that technique blower fan 7 is provided and inner circulation of sludge
The dissolved oxygen that system 10 is provided is delivered to inside sewage, forms aerobic region, realizes the degraded of most of Organic substance；
Sewage out has two whereabouts afterwards from guide shell 2, whereabouts be by the MBR membrane modules 4 at the top of tank body,
Producing water carries out mud-water separation by MBR films；Another whereabouts is flowed downward by the outside of guide shell 2, by positioned at bottom
The collector pipe of inner circulation of sludge be collected, then be circulated in inside reactor by inner circulation of sludge system.MBR blower fans
6 are connected with the aeration tube of membrane module bottom by pipeline, carry out cleaning the pollution for alleviating film by air.
Produce water and pass through MBR membrane components, vacuum pick-up system 8 is started when producing water, discharge the air in water producing pipe road, then
By gravity siphon from water of miscarrying, by the linkage of (constant current automatic regulating system 9) effusion meter and regulating valve on water producing pipe road
Control, realizes that the purpose of water is produced in constant current.
Can be realized by the present invention：
1) aqueous mode is produced in unpowered low power consuming, and system before first time starts is opened vacuum pick-up system, can be led to afterwards
The filtration of gravity progressive form continuous way is crossed, and is controlled by constant current automatic regulating system, the system need not in running
Any extra product hydrodynamic force is consumed；
2) consume energy maximum in MBR techniques is the fan energy consumption required for film is cleaned, and in the art effectively will be aerobic
The aeration air quantity used by technique is sufficiently used for washing away for film, and MBR blower fans only need to the nominal air delivery and aerobic wind according to film
The difference of amount is further added by certain safe clearance, substantially reduces the energy resource consumption of blower fan；
3) on the one hand the inner circulation of sludge system of system can effectively improve capacity of resisting impact load and realize denitrification functions,
On the other hand the vast scale sludge reflux needed for the sludge concentration of MBR system equilibrium membrane cisterna and biological tank can be realized, without the need for volume
The outer power cost for increasing backflow.
4) backflow collector pipe is arranged on into reactor bottom, anoxia functional area can be realized in reactor bottom, be realized
Biological denitrificaion function, makes whole reactor become the reactor that can possess that anoxia/aerobic function is integrated.
5) the high sludge concentration advantage of MBR membrane process is taken full advantage of, simultaneous reactions device is 2-3 times of standard biologic pond high
Degree, can at utmost reduce the floor space of system, change the deficient situation of current land resource, to enterprise's grassroot project and
Transformation provides very effective technical support.
6) it is separated by filtration as all product water have all passed through MBR films, the producing water water quality of system is effectively ensured, really
Protect turbidity and be less than 1NTU, under normal circumstances less than 0.2NTU, float is less than 5mg/L, for conventional dyeing waste water is aerobic
When technique influent quality is 600-800mg/L, which produces water COD and can stably be less than 80mg/L.
Claims (5)
1. a kind of low power consuming gravity flow membrane bioreactor, it is characterised in that：Including reactor tank body, guide shell, aerator,
In MBR membrane modules, water inlet water distribution system, MBR blower fans, technique blower fan, vacuum pick-up system, constant current automatic regulating system and sludge
Blood circulation；Wherein guide shell is arranged on the bottom in reactor tank body, and aerator is arranged on the middle part in guide shell, MBR films
Component is arranged on the top in reactor tank body, and the sewage through pretreatment is passed through intake pump and water-locator by water inlet water distribution system
Guide shell is sent into uniformly from the bottom of guide shell, air is uniformly sent into from the lower section of MBR membrane modules by MBR blower fans by wind-distributing pipe
Air is sent into aerator, vacuum pick-up system and constant current automatic regulating system point by ajutage by MBR membrane modules, technique blower fan
Not Tong Guo pipeline be connected with the water production pipeline of MBR membrane modules, inner circulation of sludge system passes through circulating pump and water collector by reactor
The sludge of tank base pumps to the gas that aerator provided with technique blower fan and is sufficiently mixed.
2. low power consuming gravity flow membrane bioreactor according to claim 1, it is characterised in that：Pass through on guide shell top
Aeration forms aerobic functional area, forms anoxia functional area in guide shell bottom, and whole reactor becomes anoxia/aerobic alternating
The reactor with denitrification functions.
3. low power consuming gravity flow membrane bioreactor according to claim 1, it is characterised in that：The MBR membrane modules are adopted
With the membrane component that filtering accuracy is 0.01 μm -1 μm, the high efficiency separation of activated sludge and filtrate is realized, it is ensured that delivery turbidity is less than
1NTU, float are less than 5mg/L.
4. low power consuming gravity flow membrane bioreactor according to claim 1, it is characterised in that：The vacuum pick-up system
Water production pipeline is evacuated using press water or air compressor machine or vacuum venturi, produce water and water production pipeline is entered through MBR films,
After water production pipeline is full of, siphon effect is produced using the potential difference between water production pipeline and constant current automatic regulating system, the company of realization
It is continuous to produce water.
5. low power consuming gravity flow membrane bioreactor according to claim 1, it is characterised in that：The constant current is automatically adjusted
System realizes the control of flow by the coordinated signals of flow control valve and effusion meter.
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| CN107651749A (en) * | 2017-10-31 | 2018-02-02 | 中海油天津化工研究设计院有限公司 | A kind of integrated bioreactor of pre-treating high concentration oil refining wastewater |
| CN108726818A (en) * | 2018-08-13 | 2018-11-02 | 湖南北控威保特环境科技股份有限公司 | A kind of integration MBR sewage-treatment plants and its processing method |
| CN109336222A (en) * | 2018-10-25 | 2019-02-15 | 浙江利欧环保科技有限公司 | Immersion gravity stream ceramic membrane microkinetic ultrafiltration system sewage disposal device and method |
| CN109574223A (en) * | 2018-12-10 | 2019-04-05 | 智造起源科技有限公司 | A kind of MBR water treatment system and its method producing water using siphon |
| CN110862149A (en) * | 2019-10-30 | 2020-03-06 | 浙江科技学院 | Enhanced separation columnar integral membrane bioreactor based on gravity action |
| CN113666502A (en) * | 2021-09-07 | 2021-11-19 | 世纪华扬环境工程有限公司 | Carbon-neutralized solar energy thermal reactor for sewage treatment |
| CN114291902A (en) * | 2022-01-18 | 2022-04-08 | 中信环境技术（广州）有限公司 | Wastewater treatment system |
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| CN109574223A (en) * | 2018-12-10 | 2019-04-05 | 智造起源科技有限公司 | A kind of MBR water treatment system and its method producing water using siphon |
| CN110862149A (en) * | 2019-10-30 | 2020-03-06 | 浙江科技学院 | Enhanced separation columnar integral membrane bioreactor based on gravity action |
| CN110862149B (en) * | 2019-10-30 | 2022-04-05 | 浙江科技学院 | Enhanced separation columnar integral membrane bioreactor based on gravity action |
| CN113666502A (en) * | 2021-09-07 | 2021-11-19 | 世纪华扬环境工程有限公司 | Carbon-neutralized solar energy thermal reactor for sewage treatment |
| CN114291902A (en) * | 2022-01-18 | 2022-04-08 | 中信环境技术（广州）有限公司 | Wastewater treatment system |
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