CN201031170Y - Two-stage filtration film bioreactor - Google Patents
Two-stage filtration film bioreactor Download PDFInfo
- Publication number
- CN201031170Y CN201031170Y CNU2007200350335U CN200720035033U CN201031170Y CN 201031170 Y CN201031170 Y CN 201031170Y CN U2007200350335 U CNU2007200350335 U CN U2007200350335U CN 200720035033 U CN200720035033 U CN 200720035033U CN 201031170 Y CN201031170 Y CN 201031170Y
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- China
- Prior art keywords
- water
- membrane
- valve
- backwash
- chamber
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a two-stage filter membrane bioreactor, comprising a biochemical filter chamber, ultra-filtration membrane components, a membrane filter chamber which is connected with the biochemical filter chamber, and a clear-water tank, and is characterized in that the two chambers are communicated by an overflow port which is provided with a gate, the ultra-filtration membrane components are immersed in the membrane filter chamber, and the biochemical filter chamber is communicated with the membrane filter chamber through the overflow port which is provided with the electric gate. Firstly, sewage water is passed through the biochemical filter chamber to be primarily and bio-chemically processed, the organic pollutant in the sewage water is degraded and the organic pollutant is like COD, ammonia nitrogen, and phosphor, and most of the suspended particulate matters are synchronously removed from the water, secondly, the primarily processed sewage water enters the membrane filter chamber, the suspended particulate matter is further removed from the water through the immersed ultra-filtration membranes. The utility model has the advantages that the filter-operating load of the ultra-filtration membranes is reduced, the membrane flux of the membrane filter unit is enhanced, and the operation is more stable and reliable.
Description
Technical field
The utility model relates to a kind of two-stage filtration membrane bioreactor, belongs to sewage purifier.
Background technology
Membrane bioreactor is to use more a kind of sewage purifier in recent years, and what it comprised that biochemical reaction decomposing organic pollutant process and membrane filtration remove solia particle and suspended substance will change process.In the present known membrane bioreactor, hyperfiltration membrane assembly directly places the active sludge intermixture of the high density of biochemical reaction tank, and the secondary filter effect of process film is purified water.But the shortcoming that exists is: the SS mixed solution of high density directly carries out membrane filtration, makes film surface pollution serious, thereby causes membrane flux to reduce, and needs to increase membrane area and improves membrane flux; For reducing the formation of face cake layer, must reduce the packing density of hyperfiltration membrane assembly, so equipment is not compact, floor space increases; System needs uninterruptedly mass flow air flushing face cake layer, energy consumption height to be carried out in the ultra-filtration membrane surface; Running cost is increased.In addition, hyperfiltration membrane assembly directly is immersed in the high-concentration activated sludge mixed solution, in case occur fracture of wire in the hyperfiltration membrane assembly, will cause the huge fluctuation of effluent quality, has a strong impact on follow-up reverse osmosis system reliability of operation.
Summary of the invention
The purpose of this utility model is to provide a kind of two-stage filtration membrane bioreactor, is intended to overcome the above-mentioned defective of existing membrane bioreactor, improves membrane flux, reduces system cost and energy consumption, improves the stability of effluent quality.
The utility model two-stage filtration membrane bioreactor contains biochemistry filtered chamber and hyperfiltration membrane assembly, the bottom of biochemistry filtered chamber is a water distributing area, water distributing area is provided with original water inlet and takes over and raw water pump, filter, biologic packing material layer and aeration tube are equipped with in the water distributing area top, hyperfiltration membrane assembly is connected to pure water inlet and takes over and clarified water pump, this reactor also comprises the membrane filtration chamber that links to each other with biochemistry filtered chamber, communicate with overflow port between two Room, overflow port is provided with gate, it is indoor that said hyperfiltration membrane assembly is dipped in membrane filtration, can be electric gate valve.
Said aeration tube is connected with blower fan, and blower fan provides biochemical degradation required oxygen by aeration tube to packing layer.
Said biochemistry filtered chamber and hyperfiltration membrane assembly are connected to backwash inlet pipe and backwash blower fan.
Said biochemistry filtered chamber and hyperfiltration membrane assembly are connected to backwash water inlet pipe and backwashing pump.
Biochemistry filtered chamber and hyperfiltration membrane assembly are connected to backwash blower fan and backwashing pump, can be regularly or aperiodically by air blast with pump into water purification, biochemistry filtered chamber and ultra-filtration membrane are washed.
The membrane filtration chamber is connected to backwater outlet pipe and back water pump.Be used for that the dense water of membrane filtration chamber or backwash water are returned raw water box and participate in the one-level biochemical treatment again.
The backwash water-in of the backwash inlet mouth of aeration tube import, hyperfiltration membrane assembly and biofiltration chamber, ultra-filtration membrane and biofiltration chamber, membrane filtration chamber return water pipe are equipped with control valve respectively.
Said each control valve and electric gate valve all link with automatic control system.
Adopting the utility model refining plant to make the purification of sewage be divided into two-stage carries out.At first sewage is fed biochemistry filtered chamber, carry out the one-level biochemical treatment, organic pollutants such as the COD in the degradation of sewage, ammonia nitrogen, phosphorus, and remove most of suspended particulate in the water synchronously; Carry out second stage membrane filtration then and handle, further remove suspended particulate in the water, and the microorganism that sees through of the biochemistry filtered unit of the one-level of damming.After one-level is removed most of dirt only, the ultrafiltration membrance filter operating load of secondary purification is reduced, improve the membrane flux of membrane filter unit, make the operation of membrane filtration module more stable, more reliable, thus the design scale and the floor space of hyperfiltration membrane assembly can be reduced, more reduce system cost.The utility model is provided with backwash, the blowback system of film, removes the film surface pollution thing, improves the flux of film; Be provided with the dense water of membrane filtration chamber and the return-flow system of backwash water, stop long bacterial classification of generation cycle excessively to run off, improved the removal efficient that membrane bioreactor is difficult to for traditional biochemical processing process.
Description of drawings
Accompanying drawing is that the two-stage filtration membrane bioreactor is used for the system architecture synoptic diagram that water purifies.
Number table is shown among the figure: 1-raw water box, 2-biochemical reaction chamber, 3-membrane filtration chamber, 4-clear water tanks, 5-raw water pump, 6-Aeration fan, 7-clarified water pump, 8-backwash water pump, 9-backwash blower fan, 10-reflux pump, 11 1 electric gate valves, 12-former water water intaking valve, 13-aeration valve, 14-biochemical backwash bleed valve, 15-biologic packing material layer, 16-distributing water room, 17-filter, 18-submerged ultrafiltration assembly, 19-biochemistry filtered chamber backwash water intaking valve, 20-biochemical chamber back-flushing valve, 21-hyperfiltration membrane assembly back-flushing valve, 22-membrane filtration chamber backwash backwater bleed valve, 23-hyperfiltration membrane assembly backwash water intaking valve, 24-water purifying valve, 25-aeration tube.
Embodiment
As shown in the figure, after promoting, raw water pump 5 enters the distributing water room 16 of 2 bottoms, biochemistry filtered chamber by former water water intaking valve 12 from the former water of raw water box 1, and enter active bio packing layer 15 via filter 17, air-flow in packing layer 15 bottoms with aeration tube 25 ejections mixes, organic pollutant fully contacts with microorganism attached to filling surface in the water, and is absorbed degraded (aeration is blown into by control valve 3 by blower fan 6) under the oxygen effect in aeration; Simultaneously, the suspended particle major part is held back by packing layer in the water, enters the upper area of biochemistry filtered chamber 2 by packing layer 15 filtering rough purification water, enters membrane filtration chamber 3 by electric gate valve 11 overflows subsequently, with hyperfiltration membrane assembly 18 submergences.Under the suction of clarified water pump 7, the water purification that sees through face enters clear water tanks 4 by control valve 24.
System is provided with backwashing pump 8 and backwash blower fan 9, with the water purification in the clear water tanks 4 air water associating backwash is regularly carried out in biochemical reaction chamber 2 and hyperfiltration membrane assembly 18, removes the pollutent that is deposited on face and biochemical packing layer, prevents to stop up.Sewage backflow water pump 10 is back to raw water box 1 after dense water in the membrane filtration chamber 3 or the backwash, reclaims long bacterium of generation cycle (as nitrobacteria etc.), prevents the loss of this part bacterium, improves the biochemical treatment effect.Discharge from biochemical backwash bleed valve 14 through the sewage of backwash biochemical reaction chamber 2.
System is provided with following control valve:
Raw water pump be connected with former water water intaking valve 12, aeration tube be connected with aeration valve 13, clarified water pump 7 be connected with water purifying valve 24, backwash gas inlet pipe and be equipped with that backwash water intaking valve 23 and 19, backwash inlet pipe are equipped with intake valve 21 and 20, the backwater outlet pipe is equipped with back-water valve bleed valve 22 and 14.
Each control valve 12,13,14,19,20,21,22,23,24 all adopts self-acting valve, and they all link to each other with automatic control system with electric gate valve 11, open and close automatically in good time.
Claims (7)
1. two-stage filtration membrane bioreactor, contain biochemistry filtered chamber (2) and hyperfiltration membrane assembly (18), the bottom of biochemistry filtered chamber (2) is water distributing area (16), water distributing area is provided with original water inlet and takes over and raw water pump (5), filter (17) is equipped with in the water distributing area top, biologic packing material layer (15) and aeration tube (25), hyperfiltration membrane assembly (18) is connected to pure water inlet and takes over and clarified water pump (7), it is characterized in that also including the membrane filtration chamber that links to each other with biochemistry filtered chamber, communicate with overflow port between two Room, overflow port is provided with gate (11), and it is indoor that said hyperfiltration membrane assembly (18) is immersed in membrane filtration.
2. two-stage filtration membrane bioreactor according to claim 1 is characterized in that the inlet pipe of said aeration tube (25) is connected with blower fan (6).
3. two-stage filtration membrane bioreactor according to claim 1 is characterized in that said biochemistry filtered chamber (2) and hyperfiltration membrane assembly (18) are connected to backwash inlet pipe and backwash blower fan (9).
4. two-stage filtration membrane bioreactor according to claim 3 is characterized in that biochemistry filtered chamber (2) and hyperfiltration membrane assembly (18) are connected to backwash water inlet pipe and backwashing pump (8).
5. two-stage filtration membrane bioreactor according to claim 4 is characterized in that said membrane filtration chamber (3) is connected to backwater outlet pipe and back water pump (10).
6. two-stage filtration membrane bioreactor according to claim 5, it is characterized in that being provided with following control valve: raw water pump be connected with former water water intaking valve (12), aeration tube be connected with aeration valve (13), clarified water pump (7) be connected with water purifying valve (24), backwash water intaking valve (23) is housed backwash gas inlet pipe and (19), backwash inlet pipe are equipped with intake valve (21) and (20), backwater outlet pipe are equipped with back-water valve bleed valve (22) and (14), said gate (11) is an electric gate valve.
7. two-stage filtration membrane bioreactor according to claim 6 is characterized in that said each control valve (12), (13), (24), (23), (19), (21), (20), (22), (14) and electric gate valve (11) all link with automatic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200350335U CN201031170Y (en) | 2007-03-08 | 2007-03-08 | Two-stage filtration film bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200350335U CN201031170Y (en) | 2007-03-08 | 2007-03-08 | Two-stage filtration film bioreactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201031170Y true CN201031170Y (en) | 2008-03-05 |
Family
ID=39163064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200350335U Expired - Lifetime CN201031170Y (en) | 2007-03-08 | 2007-03-08 | Two-stage filtration film bioreactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201031170Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276055A (en) * | 2011-05-17 | 2011-12-14 | 太平洋水处理工程有限公司 | Novel method for controlling membrane pollution in membrane-bioreactor |
| CN103708681A (en) * | 2013-12-30 | 2014-04-09 | 山东京鲁水务集团有限公司 | Film biological treatment device for reuse of reclaimed water |
| CN115028259A (en) * | 2022-04-25 | 2022-09-09 | 智享生物(苏州)有限公司 | Bioreactor capable of relieving membrane pollution |
-
2007
- 2007-03-08 CN CNU2007200350335U patent/CN201031170Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276055A (en) * | 2011-05-17 | 2011-12-14 | 太平洋水处理工程有限公司 | Novel method for controlling membrane pollution in membrane-bioreactor |
| CN103708681A (en) * | 2013-12-30 | 2014-04-09 | 山东京鲁水务集团有限公司 | Film biological treatment device for reuse of reclaimed water |
| CN103708681B (en) * | 2013-12-30 | 2015-04-22 | 山东京鲁水务集团有限公司 | Film biological treatment device for reuse of reclaimed water |
| CN115028259A (en) * | 2022-04-25 | 2022-09-09 | 智享生物(苏州)有限公司 | Bioreactor capable of relieving membrane pollution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080305 |
|
| CX01 | Expiry of patent term |