CN208218493U

CN208218493U - Membrane bioreactor

Info

Publication number: CN208218493U
Application number: CN201820408978.5U
Authority: CN
Inventors: 罗俊涛
Original assignee: Yunnan Pega Environmental Technology Co Ltd
Current assignee: Yunnan Pega Environmental Technology Co Ltd
Priority date: 2018-03-26
Filing date: 2018-03-26
Publication date: 2018-12-11
Anticipated expiration: 2028-03-26

Abstract

The utility model discloses a kind of membrane bioreactor, including biological reaction pool and UF membrane pond, biological reaction pool and UF membrane pond are separated by partition；Overflow port is equipped at the top of partition；Overflow port separates bottom of pond portion by " L " pipeline junctional membrane；Ceramics filling layer, eps foam layer and volcanic rock mineral filler layer are successively arranged in biological reaction pool from bottom to up；Membrane separation assemblies are equipped in UF membrane pond；Membrane separation assemblies include frame, metal filter screen and membrane module；Each outer surface of frame is respectively equipped with metal filter screen；Membrane module is equipped in frame；Membrane module includes outlet pipe, end and hollow-fibre membrane；Hollow-fibre membrane lower end closed；Outlet pipe connects primary flow pipe；Primary flow pipe is equipped with vacuum plant；Membrane separation assemblies connect vibration device by support drive rod.The utility model can carry out deep purifying to sewage, reduce the load of follow-up equipment, significantly reduce the pollution of membrane module, extend the service life of membrane module, improve membrane flux.

Description

Membrane bioreactor

Technical field

The utility model relates to sewage disposal devices, concretely relate to a kind of membrane bioreactor.

Background technique

Membrane bioreactor (Membrane Bio-Reactor, MBR) is that have membrane separation technique and biologic treating technique The novel waste water treatment system that machine combines is replaced secondary in traditional biological processing technique using membrane module as mud-water separation unit Sedimentation basin has many advantages, such as that occupied area is small, effluent quality is good, operational management is simple.Membrane bioreactor is set using UF membrane It is standby that activated sludge and larger molecular organics are trapped in bioreactor, it realizes reactor hydraulic detention time (HRT) and dirty Sludge age (SRT's) is kept completely separate, and keeps high activity sludge concentration in the bioreactor, improves biological treatment organic loading, from And sewage treatment facility occupied area is reduced, and by keeping low sludge loading to reduce surplus sludge volume.

Existing membrane bioreactor is generally made of reaction tank and UF membrane pond, and the membrane component for forming membrane module mainly has Two kinds of forms of plate membrane and hollow-fibre membrane.In the prior art, the membrane component of plate membrane type is using ABS plank as support portion Plate diaphragm is fixed on ABS plank two sides by part, and sewage is after the filtering of plate diaphragm, into the deflector hole of ABS plank, and Faucet is collected to by its internal diversion, purified water is discharged.In the prolonged course of work, it is fixed on ABS plate two The plate membrane of side is easy to be blocked by sundries remaining in sewage, and membrane flux is caused to reduce, water-yielding capacity decline.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of pair of sewage to carry out deep purifying, reduces follow-up equipment Load significantly reduces the pollution of membrane module, extends the service life of membrane module, improves the membrane bioreactor of membrane flux.

In order to solve the above-mentioned technical problem, the technical solution of the utility model are as follows: a kind of membrane bioreactor, including biology Reaction tank and UF membrane pond, the biological reaction pool and UF membrane pond are separated by partition；Overflow port is equipped at the top of the partition；Institute It states overflow port and the UF membrane bottom of pond portion is connected by " L " pipeline；It is successively arranged haydite from bottom to up in the biological reaction pool Packing layer, eps foam layer and volcanic rock mineral filler layer；The biological respinse bottom of pond portion is equipped with water inlet；The UF membrane pond It is interior to be equipped with membrane separation assemblies；The membrane separation assemblies include frame, metal filter screen and membrane module；Each outer surface of the frame It is respectively equipped with the metal filter screen；Membrane module is equipped in the frame；The membrane module includes outlet pipe, end and hollow fibre Tie up film；The hollow-fibre membrane lower end closed；The outlet pipe connects primary flow pipe；The primary flow pipe is equipped with vacuum holding It sets；The membrane separation assemblies connect vibration device by support drive rod.

Preferably, the vibration device is vibration excitor.

Preferably, the primary flow pipe connects clear water reserviors；The clear water reserviors connect the biological respinse by reflux line Pond；The reflux line is equipped with reflux pump.

Preferably, the UF membrane bottom of pond portion is additionally provided with sludge pump；The sludge pump connects sludge-tank by mud conveying pipeline.

It preferably, further include aerating system；The aerating system includes aeration supervisor, Aeration fan, microporous aeration device； The inlet end connection Aeration fan of the aeration supervisor, its outlet side are in charge of by air inlet is separately connected multiple micro-pore aerations Device；The microporous aeration device is separately positioned in the biological reaction pool and UF membrane pond.

The beneficial effects of the utility model are: 1, due to being successively arranged from bottom to up in the biological reaction pool of the utility model Ceramics filling layer, eps foam layer and volcanic rock mineral filler layer, by the way that multiple filling layers are arranged；Conducive to the breeding of aerobic layer bacterium colony； It more preferably realizes each layer growth difference but adapts to the biological flora of this layer of filler, facilitate the increment and metabolism of microorganism, because This, facilitates the degradation and removal of most organic pollutants, reduces the load to subsequent technique；2, it is added outside membrane module Metal filter screen, so that membrane module and big partial size pollutant separate, will be enriched in microorganism so that the filtering of level-one film becomes twin-stage Activated sludge and macromolecular be trapped in except metal filter screen, significantly reduce pollution of the biological sludge to membrane module, not only The service life of membrane module can be extended, moreover it is possible to improve the membrane flux and water yield in use process；3, membrane separation assemblies are led to Support drive rod connection vibration device is crossed, which can generate vibration, attached to remove with the sundries fallen in diaphragm that shakes Sundries, it is ensured that the membrane flux of each membrane component, in addition cleaning when can accelerate cleaning speed.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model membrane bioreactor；

Fig. 2 is the structural schematic diagram of the membrane separation assemblies of the utility model membrane bioreactor.

Specific embodiment

Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other It can be combined with each other.

As depicted in figs. 1 and 2, a kind of membrane bioreactor of the utility model, it includes biological reaction pool 1 and UF membrane Pond 2, wherein the biological reaction pool 1 and UF membrane pond 2 are separated by partition 3；Overflow port 31 is equipped at the top of partition 3；Overflow port 31 is logical 4 junctional membrane separate tank of " L " pipeline, 2 bottom is crossed, sewage is enabled to enter the bottom in UF membrane pond 2 from the top of biological reaction pool 1 Portion；Ceramics filling layer 11, eps foam layer 12 and volcanic rock mineral filler layer 13 are successively arranged in biological reaction pool 1 from bottom to up； By the way that multiple filling layers are arranged；Conducive to the breeding of aerobic layer bacterium colony；It more preferably realizes each layer growth difference but adapts to this layer of filler Biological flora, facilitate the increment and metabolism of microorganism, therefore, facilitate the degradation and removal of most organic pollutants, The load to subsequent technique is reduced, 1 bottom of biological reaction pool is equipped with water inlet 14, convenient for water inlet；Equipped with film point in UF membrane pond 2 From component 5；As shown in Fig. 2, the membrane separation assemblies 5 include frame 51, metal filter screen 52 and membrane module 53；Frame 51 it is each outer Surface is respectively equipped with metal filter screen 52；Membrane module 53 is equipped in frame 51；Membrane module 53 includes outlet pipe 531,532 and of end Hollow-fibre membrane 533；533 lower end closed of hollow-fibre membrane；Outlet pipe 531 connects primary flow pipe 6；Primary flow pipe 6 is equipped with true Empty device 61；Membrane separation assemblies 5 connect vibration device 8 by support drive rod 7, which is vibration excitor, certainly may be used To be other vibration original parts, by the way that vibration excitor is directly connected to each membrane separation assemblies 5, obtain membrane separation assemblies 5 certain big Small vibratory output vibrates membrane separation assemblies 5 during the work time, and the frequency stabilization of vibration excitor can It leans on, the sundries for being attached to 5 outer surface of membrane separation assemblies can be removed by the vibration of vibration excitor, it is ensured that each membrane separation assemblies 5 Membrane flux, the utility model use two-stage filtering device, i.e., metal filter screen 51 is additionally arranged outside membrane module 53, so that one Grade film, which filters, becomes twin-stage, so that membrane module 53 and big partial size pollutant separate, the activated sludge that will be enriched in microorganism divides with big Son is trapped in except metal filter screen 51, is significantly reduced pollution of the biological sludge to membrane module 53, can not only be extended film group The service life of part 53, moreover it is possible to improve the membrane flux and water yield in use process.

In use, sewage successively passes through biological reaction pool 1 and UF membrane pond 2 to the utility model, in biological respinse Enter in UF membrane pond 2 after being handled by microorganism decomposition in pond 1, water penetrates hollow-fibre membrane 533, and mud not can enter and realize The separation of muddy water, final water enters end 532 after the filtration of hollow-fibre membrane 533 and enters back into outlet pipe 531, by vacuum holding Setting 61 makes to generate negative pressure in primary flow pipe 6, ejects water finally from primary flow pipe 6, realizes the separation of water, in order to Convenient for the water in primary flow pipe 6 to be collected, primary flow pipe 6 is connected into clear water reserviors 9；It is detected in clear water reserviors 9, in order to Keep the water in clear water reserviors 9 up to standard, water is detected in clear water reserviors 9, if not up to standard can also further return to biology for water Reaction tank 1 is purified, and clear water reserviors 9 are connected biological reaction pool 1 by reflux line 91；Reflux line 91 is equipped with reflux pump 92。

For the ease of clearing up the mud of 2 bottom of UF membrane pond, sludge pump 21 is additionally provided in 2 bottom of UF membrane pond；Sludge pump 21 connect sludge-tank by mud conveying pipeline.In order to carry out aeration and air purge to entire reactor, it is additionally provided with aerating system 10；Aeration System 10 includes 101, Aeration fan 102, microporous aeration device 103 of aeration supervisor；The inlet end of aeration supervisor 101 connects aeration Blower 102, its outlet side are in charge of 104 by air inlet and are separately connected multiple microporous aeration devices 105；Microporous aeration device 105 divides It She Zhi not be in biological reaction pool 1 and UF membrane pond 2.In addition, vacuum plant 61 in the present invention, vibration device 8, micropore Aerator 105 is existing equipment, is not made improvements to its structure, and to its working principle, details are not described herein.

The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.

Claims

1. a kind of membrane bioreactor, including biological reaction pool (1) and UF membrane pond (2), which is characterized in that the biological respinse Pond (1) and UF membrane pond (2) are separated by partition (3)；Overflow port (31) are equipped at the top of the partition (3)；The overflow port (31) UF membrane pond (2) bottom is connected by " L " pipeline (4)；It is successively arranged haydite from bottom to up in the biological reaction pool (1) Packing layer (11), eps foam layer (12) and volcanic rock mineral filler layer (13)；Biological reaction pool (1) bottom is equipped with water inlet Mouth (14)；Membrane separation assemblies (5) are equipped in the UF membrane pond (2)；The membrane separation assemblies (5) include frame (51), metal Filter screen (52) and membrane module (53)；Each outer surface of the frame (51) is respectively equipped with the metal filter screen (52)；It is described Membrane module (53) are equipped in frame (51)；The membrane module (53) includes outlet pipe (531), end (532) and hollow-fibre membrane (533)；Hollow-fibre membrane (533) lower end closed；The outlet pipe (531) connects primary flow pipe (6)；The primary flow pipe (6) vacuum plant (61) are equipped with；The membrane separation assemblies (5) pass through support drive rod (7) connection vibration device (8).

2. membrane bioreactor according to claim 1, which is characterized in that the vibration device (8) is vibration excitor.

3. membrane bioreactor according to claim 1, which is characterized in that the primary flow pipe (6) connects clear water reserviors (9)； The clear water reserviors (9) connect the biological reaction pool (1) by reflux line (91)；The reflux line (91) is equipped with reflux It pumps (92).

4. membrane bioreactor according to claim 1, which is characterized in that UF membrane pond (2) bottom is additionally provided with sludge It pumps (21)；The sludge pump (21) connects sludge-tank by mud conveying pipeline.

5. membrane bioreactor according to claim 1, which is characterized in that further include aerating system (10)；The aeration system (10) are united including being aerated supervisor (101), Aeration fan (102), microporous aeration device (103)；It is described aeration supervisor (101) into Gas end connects the Aeration fan (102), its outlet side is in charge of (104) by air inlet and is separately connected multiple microporous aeration devices (105)；The microporous aeration device (105) is separately positioned in the biological reaction pool (1) and UF membrane pond (2).