CN102311206A - SBR (Sequencing Batch Reactor)-ultrafiltration membrane sewage reusing device - Google Patents
SBR (Sequencing Batch Reactor)-ultrafiltration membrane sewage reusing device Download PDFInfo
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- CN102311206A CN102311206A CN201110086677A CN201110086677A CN102311206A CN 102311206 A CN102311206 A CN 102311206A CN 201110086677 A CN201110086677 A CN 201110086677A CN 201110086677 A CN201110086677 A CN 201110086677A CN 102311206 A CN102311206 A CN 102311206A
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Abstract
The invention belongs to the field of sewage treatment in environmental engineering and relates to an SBR (Sequencing Batch Reactor)-ultrafiltration membrane sewage reusing device, wherein a water outlet pipeline of a raw water regulating tank is communicated with a water inlet of an SBR main reaction tank; a water inlet pump is arranged on the pipeline; a stirrer, a water decanter and a microporous aerator are arranged in the SBR main reaction tank; the microporous aerator is communicated with an air blower through an air inlet pipeline provided with a magnetic valve; the water outlet of the water decanter is communicated with the water inlet of a filter tank through a natural flow pipe; and an ultrafiltration membrane filter and a liquid indicator are arranged in the filter tank. The device provided by the invention has the advantages of strong impact load resistance by utilizing the SBR process, strong adaptability to water variation, good treatment effect, no need for sludge backflow, little floor space, automation in running, speediness in installation, and simpleness and convenience for operation and maintenance; the stable and reliable ability to remove organic matters, suspended matters and bacteria of ultrafiltration membrane technology is combined to ensure that the sewage is reused for greening, flushing toilets, washing cars and the like; and the device is suitable for the sewage treatment and reusing which have characteristics of big fluctuation and little water in industry and life.
Description
Technical field
The invention belongs to field of environmental engineering sewage treatment, particularly relate to a kind of SBR process spent water reclamation set.
Background technology
Intermittent activated sludge process is commonly referred to sequencing batch active sludge (SBR), and this technology is used for the back yard industry wastewater treatment more in the eighties in 20th century, and the fast development along with computer automation control begins to be applied to large size city sewage work.SBR technology principal character be in order, intermittent operation, the mode cut apart of employing time replaces the mode of space segmentation, the unstable state biochemical reaction replaces the stable state biochemical reaction, static desirable deposition replaces the conventional dynamic deposition.SBR technology entire treatment process is divided into 5 stages: fill phase, step of reaction, subsidence stage, strain water stage and idle stage.Compare with the traditional continuous activated sludge process, SBR technology has the following advantages:
(1) technical process is simple, and construction cost and working cost are all lower;
(2) treatment effect is good, and operation scheme is flexible and changeable, has the denitrogenation dephosphorizing function;
(3) be in complete admixture in the reactor drum, the variation of matrix and microorganism concn is a plug-flow process in time, and demonstrates ideal plug-flow state, and processing efficiency is high, anti impulsion load;
(4) the SVI value is lower, and mud is easy to deposition, is difficult for taking place sludge bulking;
(5) the aeration tank volume is not established secondary sedimentation basins less than continous way, and reaction zone has the second pond function concurrently;
(6) flexibility that water quality and quantity is changed is strong, is fit to very much handle the little water yield, the trade effluent of intermittently discharged and the improvement that disperses point-source pollution.
The main shortcoming of SBR is the performance and the level of automation of equipment are had relatively high expectations; During the large-scale processing water yield, management, control are complicated; The stability of the carbon source competitive influence denitrogenation dephosphorizing effect of anoxic denitrification and anaerobic phosphorus release and system's operation; Run mud when straining the water poor effect and use water suspension and increase etc., this has to be solved and perfect.
Ultrafiltration (UF) is a kind of membrane filtration technique, and the filtering accuracy of ultra-filtration membrane is 0.01 μ m, and the filtration of water through the ultra-filtration membrane surface micropore removes in anhydrating the particle greater than 0.01 μ m.Also there is ideal to remove rate to colloid, algae, virus, organic macromolecule in addition.The ultra-filtration membrane aperture can reach the direct purpose of removing virus, pathogenic agent and organic macromolecule, so it is the simple physical process of filtering and sterilizing and accomplishing simultaneously.70-eighties of 20th century, application surface was more and more wider along with the high speed development of ultra-filtration technique, and it is mainly used in feedwater and Industrial Wastewater Treatment fields such as RO pre-treatment system and membrane bioreactor, was the best-of-breed technology that substitutes traditional sand filtration technology.The advantage of ultrafiltration technology is a lot, mainly contains:
(1) filtration procedure does not undergo phase transition, and need not heating, and energy consumption is low, need not to add chemical reagent, and is pollution-free, and separation efficiency is high;
(2) ultra-filtration process only adopts the power of pressure as membrane sepn, so tripping device is simple, flow process is short, easy and simple to handle, level of automation is high, is easy to control and maintenance;
(3) ultra-filtration technique COD clearance can reach 50%, intestinal bacteria clearance 100%, and delivery turbidity 0.1 ~ 0.2NTU, treatment effect is good, and is stable;
(4) floor space is little, convenience for washing, water production rate height and energy consumption is low.
Ultra-filtration technique has strict influent quality; Still there is more serious pollution problem in film, causes membrane flux to descend; Complicated automatic operating program.
Through investigation, many reclamation sets and method are arranged at present, have advantage separately; Also all there is simultaneously certain not enough problem; For example: a kind of SBR+ artificial swamp composite processing system, form by SBR treatment unit and artificial swamp treatment unit, though treatment effect is better; But cover an area of, automatic control requires high; A kind of interrupted high efficient aeration reduces BOD, COD, add the membrane filtration new technology and remove bacterium, mikrobe, larger molecular organics, promptly " membrane bio-reaction system " (MBR), build investment little, take up an area of fewly, but membrane lifetime is short, maintenance cost is high; A kind of upflow-type reactor that comprises, the middle water recycling device of BAF, floor space is little, and civil engineering costs is low, but effluent quality is unstable, and maintenance cost is high; A kind of fecal sewage is handled reclamation set; Comprise concurrent physical processor, contact oxidation reactor, anaerobic reactor, membrane bioreactor, auxiliary processor, elevated tank, water pump and air pump; Advantage is that comprehensive treating process Pollutant levels effectively are high, and the uneven fecal sewage of water distribution also produces reuse water, and circulation is used to flush the toilet but flow process is complicated; Floor space is big, and maintenance difficulties is big; Water recycling device comprises micro-filtration, ultra-filtration equipment and reverse osmosis unit in a kind of full embrane method, and middle water treatment is effective, simple to operate, water use efficiency is high, floor space is few, but energy consumption is high, and maintenance cost is high.
Summary of the invention
The objective of the invention is to dispersive pollute point source in a large number in industrial and the life, bigger wastewater/sewage amount fluctuates; A kind of SBR-ultra-filtration membrane wastewater reusing device is provided; Rational in infrastructure; In conjunction with the treatment effect of the operation scheme and the ultra-filtration membrane safety and stability of SBR technology, obtain better and stable water flow quality, with reach reusing sewage in afforest, flush the toilet, the purpose of energy-conservation reduction of discharging such as carwash, waste water reclaiming.
The present invention for realizing the technical scheme that above-mentioned purpose adopted is: SBR-ultra-filtration membrane wastewater reusing device; Relate to former water equalizing tank, SBR main reaction pond, filtering basin and clean water basin; Former water equalizing tank water outlet pipeline is communicated with SBR main reaction pond water-in; Intake pump is installed on the pipeline, and the SBR main reaction is equipped with whisking appliance in the pond, strains hydrophone and micro-hole aerator, and micro-hole aerator is communicated with gas blower through the admission passage that SV is installed; Strain the hydrophone water outlet and be communicated with the filtering basin water-in, ultrafiltration membrance filter device and liquidometer are installed in the filtering basin through gravity line; The filtering basin water outlet has the recoil loop and the draining loop of valve, each valve communication connection control system through the water outlet pump attachment strap.
Said filtering basin rising pipe is communicated with pump intake; Go out the pump outlet tube road and be divided into two outlet branch roads, outlet branch road one is communicated with the clean water basin water inlet pipe and water outlet pipe, and filtering basin draining control valve, clean water basin water inlet control valve and draining control valve are installed on the clean water basin water inlet pipe and water outlet pipe; Outlet branch road two is communicated with the backwash pipeline; The backwash pipeline is equipped with washing discharge control valve and air purge valve, by being communicated with pipe, the washing water inlet control valve is installed on pipe between filtering basin rising pipe and the clean water basin water inlet pipe.
Said former water equalizing tank is communicated with former water water inlet pipe and blow-down pipe, blow-down pipe, on blow-off valve is installed, whisking appliance and liquidometer are installed in the former water equalizing tank.
Said SBR main reaction is equipped with dissolved oxygen instrument in the pond, and dissolved oxygen instrument signal connection control system, system drive and connect gas blower.
Said system, gas blower and go out water pump and pipeline is installed on the equipment platform.
SBR-ultra-filtration membrane wastewater reusing device of the present invention possesses following characteristics and advantage:
1. device utilizes SBR technology anti impulsion load; It is strong that the water yield is changed flexibility; The characteristics that treatment effect is good; In conjunction with ultrafiltration membrane technique to organism, suspended substance, the reliable and stable removal ability of bacterium, make reusing sewage in afforest, flush the toilet, carwash etc., be applicable to have in industry and the life that fluctuation is big, the WWT and the reuses of the little characteristics of the water yield;
2. set up multifunction fully, utilize an impeller pump to go out wetting system, utilize a gas blower, reduce investment outlay and working cost as the oxygen supply of sbr reactor district, ultra-filtration membrane gas back-washing equipment as device water outlet, ultra-filtration membrane backwash, ultra-filtration membrane;
3. the operation scheme of SBR technology has improved the operational flexibility and the controllability of system; Gas blower and the operation of online dissolved oxygen instrument interlocking are only got final product by start and stop control, need not the full loop VFC; Go out water pump and adopt VFC, make the water supply stabilizing energy-saving;
4. technique unit is simple, need not mud and refluxes, and does not establish second pond, does not add chemical agent, and floor space is little, and automatic operating is installed fast operation, easy maintenance;
5. because SBR technology supernatant suspended substance, colloid are few, and device has complete backwash function, therefore help decelerating membrane pollution, effectively reduce the membrane flux lowering speed, prolonged the work-ing life of ultra-filtration membrane, the replacing frequency of minimizing hyperfiltration membrane assembly.
Description of drawings
Fig. 1 is that the two dimensional structure of SBR-ultra-filtration membrane wastewater reusing device is arranged synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing and practical implementation instance SBR-ultra-filtration membrane wastewater reusing device of the present invention is done further to describe in detail:
Four ponds shown in Fig. 1 are respectively former water equalizing tank C1, SBR main reaction pond C2, filtering basin C3 and clean water basin C4; Equipment platform C5; Former water equalizing tank C1 is communicated with former water water inlet pipe G1 and blow-down pipe G2; Blow-off valve V3 is installed on the blow-down pipe, whisking appliance E1 and liquidometer E10 are installed in the former water equalizing tank; Former water equalizing tank water outlet pipeline is communicated with SBR main reaction pond water-in; Intake pump P1 is installed on the pipeline; The SBR main reaction is equipped with whisking appliance E4 in the pond, strains hydrophone E2 and micro-hole aerator E3, and micro-hole aerator E3 is communicated with gas blower P3 through the admission passage G3 that SV V8 is installed, and the SBR main reaction also is equipped with dissolved oxygen instrument E6 in the pond; Dissolved oxygen instrument signal connection control system, system drive and connect gas blower; Strain hydrophone E2 water outlet and be communicated with the filtering basin water-in, ultrafiltration membrance filter device E5 and liquidometer E9 are installed in the filtering basin through gravity line G4; Liquidometer E8 is installed in the clean water basin; Filtering basin rising pipe G5 is communicated with water pump P2 water-in; Go out water pump P2 export pipeline and be divided into two outlet branch roads through SV V14; Outlet branch road one G6 is communicated with clean water basin water inlet pipe and water outlet pipe G8; Filtering basin draining control valve V10, clean water basin water inlet control valve V12 and draining control valve V13 are installed on the clean water basin water inlet pipe and water outlet pipe G8, and outlet branch road two is communicated with backwash pipeline G7, and the backwash pipeline is equipped with washing discharge control valve V11 and air purge valve V7; By being communicated with pipe, washing water inlet control valve V9 was installed on pipe between filtering basin rising pipe and the clean water basin water inlet pipe.During water outlet to clean water basin, go out water pump operation, filtering basin draining control valve, clean water basin water inlet control valve are opened, and all the other valves are closed; During water, go out water pump operation, filtering basin draining control valve, draining control valve are opened, and all the other valves are closed; During the ultra-filtration membrane backwash, go out water pump operation, washing water inlet control valve, washing control of export opening of valves, all the other valves are closed; During the ultra-filtration membrane air purge, gas blower operation, the air purge valve is opened, and filtering basin draining control valve, washing discharge control valve are closed, and each valve communication connects controller chassis E7, system, gas blower and go out water pump and pipeline is installed on the equipment platform.
At first, pending former water gets into former water equalizing tank C1 through entering water electromagnetic valve V1 during work, regulating pondage water quality, and surmount SV V2 and close this moment.Whisking appliance E1 among the former water equalizing tank C1 is in the continuous operation state, guarantees the sewage thorough mixing, and emptying SV V3 closes.Former water equalizing tank C1 height is spacing by liquidometer E10 monitoring, and P1 provides protection for intake pump.
When sbr reactor device C2 arrives the water inlet sequential; Intake pump P1 starts; Former water equalizing tank C1 Central Plains water is carried to sbr reactor device C2; Whisking appliance E4 continuous operation is guaranteed mud and sewage hybrid reaction fully, and mikrobe carries out organic absorption, utilizes organism to carry out heterotrophic denitrification through heterotrophic bacterium.If it is low spacing that former water equalizing tank C1 arrives in fill phase, then intake pump P1 stops.Intake pump P1 stops when sbr reactor device C2 arrives the setting liquid level, carries out independent anaerobism whipping process, reduces remaining nitrate nitrogen content, and polyP bacteria is released phosphorus.Aerobic stage begins back whisking appliance E4 and stops, and SV V8 opens, and V7 closes, and gas blower P3 is sbr reactor device C2 oxygen supply through micro-hole aerator E3, and strain hydrophone E2 and close this moment.This, mikrobe utilized oxygen to carry out the nitration reaction of autotrophy nitrifier and the aerobic suction phosphorus reaction of polyP bacteria in stage.
At aerobic stage, the online dissolved oxygen instrument E6 that is arranged among the sbr reactor device C2 constantly monitors dissolved oxygen value, when numerical value raises arrival 2.5mg/L; Continue oxygen supply through the sequence of control machine P3 that turns off the blast; Turn on agitator E4 reduces to 0.5 mg/L to dissolved oxygen value, restarts the P3 oxygen supply, stops E4.This operation scheme is that mikrobe provides more favourable breeding environment, and can cut down the consumption of energy.
Aerobic stage finishes the back and gets into precipitate phase, and the interior all devices of sbr reactor device C2 this moment is all out of service.Begin to strain water behind the deposition 1h, strain hydrophone E2 and open this moment, among the sbr reactor device C2 supernatant gravity flow excess of imports membrane filter E5.Strain water and finish preceding 5 minutes, open soil discharging electromagnetic valve V4 spoil disposal, after spoil disposal finishes voluntarily V4 close, get into the next cycle operation.
Height is spacing among the liquidometer E9 monitoring filtering pond C3, when arriving the high ultra-filtration membrane operation that allows when spacing, lowly stops suction, the safety in production of protection ultra-filtration membrane when spacing.Filtering basin and clean water basin are equipped with the blow-down pipe that emptying SV V5, V6 are installed respectively, and water outlet goes out water pump P2 operation during to clean water basin C4, and SV V10, V12 open, and SV V7, V9, V11, V13 close; During water, the P2 operation, SV V10, V13 open, and SV V7, V9, V11, V12 close; During the ultra-filtration membrane backwash, the P2 operation, SV V9, V11 open, and SV V7, V10, V12, V13 close; During the ultra-filtration membrane air purge, gas blower P3 operation, SV V7 opens, and V10, V11 close.
Liquidometer E8 monitoring clean water basin C4 two position if liquid level is low excessively, then stops water pump P2.
Integrated all automatic control programs of SBR-ultra-filtration membrane wastewater reusing device are provided with touch-screen housing E7, make the operation of device fully automated, unmanned.
Claims (5)
1.SBR-ultra-filtration membrane wastewater reusing device; Relate to former water equalizing tank, SBR main reaction pond, filtering basin and clean water basin; It is characterized in that: former water equalizing tank water outlet pipeline is communicated with SBE main reaction pond water-in; Intake pump is installed on the pipeline, and the SBR main reaction is equipped with whisking appliance in the pond, strains hydrophone and micro-hole aerator, and micro-hole aerator is communicated with gas blower through the admission passage that SV is installed; Strain the hydrophone water outlet and be communicated with the filtering basin water-in, ultrafiltration membrance filter device and liquidometer are installed in the filtering basin through gravity line; The filtering basin water outlet has the recoil loop and the draining loop of valve, each valve communication connection control system through the water outlet pump attachment strap.
2. SBR-ultra-filtration membrane wastewater reusing device according to claim 1; It is characterized in that: said filtering basin rising pipe is communicated with pump intake; Go out the pump outlet tube road and be divided into two outlet branch roads, outlet branch road one is communicated with the clean water basin water inlet pipe and water outlet pipe, and filtering basin draining control valve, clean water basin water inlet control valve and draining control valve are installed on the clean water basin water inlet pipe and water outlet pipe; Outlet branch road two is communicated with the backwash pipeline; The backwash pipeline is equipped with washing discharge control valve and air purge valve, by being communicated with pipe, the washing water inlet control valve is installed on pipe between filtering basin rising pipe and the clean water basin water inlet pipe.
3. SBR-ultra-filtration membrane wastewater reusing device according to claim 1 is characterized in that: said former water equalizing tank is communicated with former water water inlet pipe and blow-down pipe, blow-down pipe, on blow-off valve is installed, whisking appliance and liquidometer are installed in the former water equalizing tank.
4. SBR-ultra-filtration membrane wastewater reusing device according to claim 1 is characterized in that: said SBR main reaction is equipped with dissolved oxygen instrument in the pond, and dissolved oxygen instrument signal connection control system, system drive and connect gas blower.
5. SBR-ultra-filtration membrane wastewater reusing device according to claim 1 is characterized in that: said system, gas blower and go out water pump and pipeline is installed on the equipment platform.
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| CN201110086677A CN102311206A (en) | 2011-04-07 | 2011-04-07 | SBR (Sequencing Batch Reactor)-ultrafiltration membrane sewage reusing device |
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| CN201110086677A CN102311206A (en) | 2011-04-07 | 2011-04-07 | SBR (Sequencing Batch Reactor)-ultrafiltration membrane sewage reusing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882869A (en) * | 2017-04-01 | 2017-06-23 | 尚川（北京）水务有限公司 | A kind of compound new-type is without water decanter SBR blooming separator sewage disposal systems |
| CN108585385A (en) * | 2018-06-29 | 2018-09-28 | 青岛思普润水处理股份有限公司 | A kind of MBBR sewage disposal systems and treatment process |
| CN114790035A (en) * | 2022-06-23 | 2022-07-26 | 深圳永清水务有限责任公司北京分公司 | Integration MBR sewage treatment system |
| CN115337784A (en) * | 2022-08-23 | 2022-11-15 | 湖南龙新净水科技有限公司 | Novel water purifier |
-
2011
- 2011-04-07 CN CN201110086677A patent/CN102311206A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882869A (en) * | 2017-04-01 | 2017-06-23 | 尚川（北京）水务有限公司 | A kind of compound new-type is without water decanter SBR blooming separator sewage disposal systems |
| CN108585385A (en) * | 2018-06-29 | 2018-09-28 | 青岛思普润水处理股份有限公司 | A kind of MBBR sewage disposal systems and treatment process |
| CN108585385B (en) * | 2018-06-29 | 2023-11-24 | 青岛思普润水处理股份有限公司 | MBBR sewage treatment system and treatment process |
| CN114790035A (en) * | 2022-06-23 | 2022-07-26 | 深圳永清水务有限责任公司北京分公司 | Integration MBR sewage treatment system |
| CN115337784A (en) * | 2022-08-23 | 2022-11-15 | 湖南龙新净水科技有限公司 | Novel water purifier |
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Application publication date: 20120111 |