CN202030614U - Low energy consumption membrane cleaning recycled water recycling device - Google Patents
Low energy consumption membrane cleaning recycled water recycling device Download PDFInfo
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- CN202030614U CN202030614U CN2011200842961U CN201120084296U CN202030614U CN 202030614 U CN202030614 U CN 202030614U CN 2011200842961 U CN2011200842961 U CN 2011200842961U CN 201120084296 U CN201120084296 U CN 201120084296U CN 202030614 U CN202030614 U CN 202030614U
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- water
- pool
- recycling device
- membrane
- secondary water
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Abstract
The utility model discloses a low energy consumption membrane cleaning recycled water recycling device which comprises a sewage-collecting pool, an adjusting pool and a secondary water treatment pool, a recycled water box and a sludge pool, wherein the adjusting pool is communicated with the sewage-collecting pool through a pipeline, the secondary water treatment pool is communicated with the other end of the adjusting pool through a pipeline, the recycled water box and the sludge pool are communicated with the secondary water treatment pool, a submersible propeller is arranged in the adjusting pool, a MBR (membrane bioreactor) is immersed in the secondary water treatment pool, a chemical cleaning device is arranged outside the secondary water treatment pool, a water pressure circulating device is arranged in the secondary water treatment pool and comprises a circulating pump, a water ejector and an aerated pipe arranged below the MBR, and the water ejector is arranged between a lifting pump and the secondary water treatment pool. The water pressure type recycled water recycling device has stronger practicality and broad market prospect as well as can increase the utilization rate and reduce the consumption of clean water resource as a domestic sewage and industrial waste water treatment and recycling device.
Description
Technical field
The utility model relates to environment-protection wastewater regeneration industry, is specifically related to water recycling device in a kind of low-power membrane cleaning.
Background technology
Conventional producing, contain in the sanitary sewage organism, suspended substance, bacterium, metal ion, salt grades, above-mentioned pollutent is handled by conventional physico-chemical processes and traditional biological method can't be able to effective removal, water outlet after the processing can't be as effective water resources recycle, pollutent indexs such as COD, BOD, SS, TP, colibacillus of excrement do not reach the requirement among " city miscellaneous water water quality standard " GB/T18920-2002, directly carry out reuse and may bring secondary pollution.
Water recycling device in the membrane bioreactor (MBR) is to adopt the reclamation set of hollow-fibre membrane as carrier mostly at present, the low 20L/m that reaches as high as of the system membranes flux of tubular fibre curtain type membrane
2.h; What adopt when suction pump suction waste water is that pressurized air comes the film surface is washed, and energy consumption is than higher, steam-water ratio 24: 1; Film is short work-ing life, and film fracture of wire phenomenon is serious, and 2-3 need change once, and film replacement charge height is uneconomical; The film surface cleaning is not thorough, and system needs tackle gear when cleaning membrane module is proposed to put into cleaning agent from water, and operation is difficulty quite.
The utility model content
The utility model purpose: the utility model is in order to solve the deficiencies in the prior art, provide that a kind of energy consumption is low, the low-power membrane of film long service life clean in water recycling device.
The technical solution adopted in the utility model: water recycling device during a kind of low-power membrane cleans, comprise the dirty pond of collection, the equalizing tank that links to each other with the dirty pond of described collection by pipeline, secondary water treating pond that links to each other with the described equalizing tank the other end by pipeline and reuse water tank and the sludge sump that links to each other with described secondary water treating pond, the diving impeller is housed in the described equalizing tank, on the pipeline between described secondary water treating pond and the equalizing tank lift pump and y-type filter are housed, be soaked with the MBR membrane reactor in the described secondary water treating pond, film in the described MBR membrane reactor is the PVDF flat sheet membrane, chemically-cleaning device is equipped with in described secondary water treating pond outside, described chemically-cleaning device links to each other with described MBR membrane reactor by header, be provided with the hydraulic pressure circulation device in the described secondary water treating pond, described hydraulic pressure circulation device comprises recycle pump, water sprayer and the aeration tube that is installed in described MBR membrane reactor bottom, described water sprayer is installed between described lift pump and the secondary water treating pond.
Adopt the PVDF flat sheet membrane as the film main part, membrane flux can reach 30L/m
2.h; The use of hydraulic pressure flushing arrangement cuts down the consumption of energy, and steam-water ratio was reduced to 10: 1.
As optimization, between described chemically-cleaning device and the described MBR membrane reactor electrically operated valve is housed, can realize on-line cleaning.
As optimization, described water sprayer adopts the venturi nozzle structure.
As optimization, water recycling device was provided with the equipment room that the Q235-A carbon steel material is made outward during described low-power membrane cleaned, described equipment room inwall is the steel plate that three cloth, four oily reinforced plastics are made, be brushed with twice rust-inhibiting paint and twice finish paint after the derusting by sandblast of described equipment room outer wall, integration apparatus is stable, energy consumption is low, long service life.
As optimization, the water recycling device system was by the industrial computer intelligent control during described low-power membrane cleaned.
Beneficial effect: the hydraulic pressure that the utility model produces by inlet water lifting pumps, penetrate water by the hydraulic pressure flushing pipe film surface is cleaned, when normally moving, system the film surface is thoroughly cleaned by the circulation of membrane reactor inside water pressure.By hydraulic pressure circulation and jet-flow aeration, form disorderly turbulent flow on the film surface, cancellation blower fan aeration, effectively cut down the consumption of energy decelerating membrane pollution, the cycle of prolongation matting film, reduce the destructiveness of chemical agent, prolong the work-ing life of film, the longlyest reach 6 years film; Flat sheet membrane can be easy to find from this sheet film water outlet silica gel strip after damaging, and tightens silica gel strip, can easily standby flat sheet membrane be changed, and the assurance system normally moves.
Description of drawings
Fig. 1 is water recycling device process flow sheet in the low-power membrane cleaning;
Fig. 2 is water recycling device structural representation in the low-power membrane cleaning.
Embodiment
The utility model is described in further detail below in conjunction with embodiment:
As Fig. 1, shown in 2, water recycling device during a kind of low-power membrane cleans, comprise the dirty pond 1 of collection, the equalizing tank 2 that links to each other by the dirty pond 1 of pipeline and described collection, secondary water treating pond 3 that links to each other with described equalizing tank 2 the other ends by pipeline and reuse water tank 4 and the sludge sump 5 that links to each other with described secondary water treating pond 3, diving impeller 6 is housed in the described equalizing tank 2, on the pipeline between described secondary water treating pond 3 and the equalizing tank 2 lift pump 7 and y-type filter are housed, be soaked with MBR membrane reactor 8 in the described secondary water treating pond 3, film in the described MBR membrane reactor 8 is the PVDF flat sheet membrane, chemically-cleaning device 9 is equipped with in described secondary water treating pond 3 outsides, described chemically-cleaning device 9 links to each other with described MBR membrane reactor 8 by header 10, be provided with the hydraulic pressure circulation device in the described secondary water treating pond 3, described hydraulic pressure circulation device comprises recycle pump, water sprayer 11 and the aeration tube 12 that is installed in described MBR membrane reactor 8 bottoms, described water sprayer 11 is installed between described lift pump 7 and the secondary water treating pond 3, between described chemically-cleaning device 9 and the described MBR membrane reactor 8 electrically operated valve 13 is housed, water recycling device was provided with the equipment room 14 that the Q235-A carbon steel material is made outward during described low-power membrane cleaned, described equipment room 14 inwalls are the steel plate that three cloth, four oily reinforced plastics are made, be brushed with twice rust-inhibiting paint and twice finish paint after the described equipment room 14 outer wall derusting by sandblast, the water recycling device system was by the industrial computer intelligent control during described low-power membrane cleaned.
Principle of work: in the water recycling device process system, the waste water that collects in the dirty pond is removed the bulk foreign material through grid earlier before flowing into equalizing tank in novel low-power membrane cleans, and protects equipment such as follow-up water pump not blocked.Equalizing tank has the long residence time, can suitably inoculate the oxygen activity mud of holding concurrently, and the double hydrolytic tank of doing uses, and sewage thorough mixing under the effect of diving impeller is even, under the effect of the oxygen bacterium of holding concurrently organic difficult degradation macromolecular substance is hydrolyzed into small organic molecule.Sewage again by water pump lifting to the MBR reactor, y-type filter filtering finely ground particles is set in the pipeline.
Equalizing tank sewage is delivered to water sprayer by lift pump, by the negative pressure that water sprayer produces air is brought in the sewage, carbonated drink is mixed the back and is formed the turbulent membrane bioreactor aerated conduit that passes through with the high fast direction flat sheet membrane of carbonated drink surface, membrane module draws water by the procedure auto-control suction pump, active sludge is blocked on the film surface, flat sheet membrane has had the aeration of carbonated drink turbulent flow to clean, and mud comparatively fast peels off the film surface and recovered cleaning faster.Clear water after the suction drains into the reuse water tank.Enter for operation, the lift pump of keeping system and normally open when equalizing tank is anhydrous, electrically operated valve switches to the internal recycle state, and waste water is again by the ejector same carbonated drink turbulent flow that produces that circulates, to the film surface cleaning.
By the inlet water lifting pumps transport wastewater, waste water passes through water sprayer with specific flow velocity, water sprayer adopts the venturi nozzle structure, increase at throat's flow velocity, kinetic energy improves and pressure energy decline, so that pressure drops to and is lower than normal atmosphere and produces suction function, the gas suction is mixed formation carbonated drink turbulent flow with water, in membrane module, carry out aeration, form the cross-flow circulation hydraulic pressure cleaning is carried out on MBR film surface, the mud that is enriched in the film surface during with suction breaks up, and microorganism is trapped in the membrane reactor fully, realized thoroughly separating of hydraulic detention time and active sludge mud age, so the MBR reactor has higher sludge loading and stronger biodegradability.Aspirate concrete controlled frequency and be suction termination of pumping in 8 minutes 3 minutes, water outlet enters the reuse water tank, through online ClO
2Water outlet frequency conversion up to standard is delivered to water use point in each behind the producer chlorination.
Active sludge is constantly bred in MBR reactor for treatment process, discharges mud automatically to sludge sump by the water quality in-line meter, and from flowing into equalizing tank, regularly extract out by fecal suction truck by mud through the post precipitation supernatant liquor for mud in the sludge sump.When flat sheet membrane surface slight pollution, transmit signal by suction pump suction inlet vacuum pressure transmitter pressure to intelligence controlling device, send instruction and close suction pump, start automatic flushing device, adopt clear water to clean flat sheet membrane and can recover normal use; Clean final vacuum pressure registration can't reduce the time when water is counter, start chemical agent automatically and clean, carry out matting with citric acid, clorox respectively, scavenging solution enters equalizing tank by suction pump, clean finish after system recovery move.
Claims (6)
1. water recycling device during a low-power membrane cleans, comprise collection dirty pond (1), the equalizing tank (2) that links to each other with the dirty pond of described collection (1) by pipeline, the secondary water treating pond (3) and reuse water tank (4) that links to each other with described secondary water treating pond (3) and the sludge sump (5) that link to each other with described equalizing tank (2) the other end by pipeline, diving impeller (6) is housed in the described equalizing tank (2), on the pipeline between described secondary water treating pond (3) and the equalizing tank (2) lift pump (7) and y-type filter are housed, be soaked with MBR membrane reactor (8) in the described secondary water treating pond (3), it is characterized in that: the film in the described MBR membrane reactor (8) is the PVDF flat sheet membrane, chemically-cleaning device (9) is equipped with in described secondary water treating pond (3) outside, described chemically-cleaning device (9) links to each other with described MBR membrane reactor (8) by header (10), be provided with the hydraulic pressure circulation device in the described secondary water treating pond (3), described hydraulic pressure circulation device comprises recycle pump, water sprayer (11) and be installed in the aeration tube (12) of described MBR membrane reactor (8) bottom, described water sprayer (11) is installed between described lift pump (7) and the secondary water treating pond (3).
2. water recycling device during low-power membrane according to claim 1 cleans is characterized in that: between described chemically-cleaning device (9) and the described MBR membrane reactor (8) electrically operated valve (13) is housed.
3. water recycling device during low-power membrane according to claim 1 cleans is characterized in that: described water sprayer (11) adopts the venturi nozzle structure.
4. water recycling device during low-power membrane according to claim 1 cleans is characterized in that: water recycling device was provided with the equipment room (14) that the Q235-A carbon steel material is made outward during described low-power membrane cleaned.
5. water recycling device during low-power membrane according to claim 3 cleans, it is characterized in that: described equipment room (14) inwall is the steel plate that three cloth, four oily reinforced plastics are made, and is brushed with twice rust-inhibiting paint and twice finish paint after described equipment room (14) the outer wall derusting by sandblast.
6. according to water recycling device during any described low-power membrane cleans in the claim 1 to 4, it is characterized in that: the water recycling device system was by the industrial computer intelligent control during described low-power membrane cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200842961U CN202030614U (en) | 2011-03-25 | 2011-03-25 | Low energy consumption membrane cleaning recycled water recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200842961U CN202030614U (en) | 2011-03-25 | 2011-03-25 | Low energy consumption membrane cleaning recycled water recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202030614U true CN202030614U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200842961U Expired - Lifetime CN202030614U (en) | 2011-03-25 | 2011-03-25 | Low energy consumption membrane cleaning recycled water recycling device |
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| Country | Link |
|---|---|
| CN (1) | CN202030614U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190405A (en) * | 2011-03-25 | 2011-09-21 | 南通京源水工自动化设备有限公司 | Low-energy reuse device for cleaning reclaimed water by using membrane |
| CN105597541A (en) * | 2016-02-26 | 2016-05-25 | 张汐汐 | Ultrafiltration device |
-
2011
- 2011-03-25 CN CN2011200842961U patent/CN202030614U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190405A (en) * | 2011-03-25 | 2011-09-21 | 南通京源水工自动化设备有限公司 | Low-energy reuse device for cleaning reclaimed water by using membrane |
| CN105597541A (en) * | 2016-02-26 | 2016-05-25 | 张汐汐 | Ultrafiltration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111109 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |