CN102010098A - Membrane reactor-based adaptive and self-cleaning water recycling system in traffic service area - Google Patents
Membrane reactor-based adaptive and self-cleaning water recycling system in traffic service area Download PDFInfo
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Abstract
The invention provides a membrane bioreactor-based water recycling system in a traffic service area. The system comprises a septic tank, a regulating tank, a complete membrane bioreactor and a clear water tank, wherein a liquid level meter is arranged in the regulating tank; the septic tank is used for accommodating sewage and precipitating larger particles and performing aerobic nitrification reaction, and effluent overflows into the regulating tank; the regulating tank is used for performing mixed regulation on water quality and quantity to avoid the great fluctuation of the water quality and quantity of inlet water at different time periods; the sewage flowing out of the regulating tank passes through an anaerobic zone, an anoxic zone and an aerobic zone and then is then subjected to solid-liquid separation by a membrane tank; mixed liquor in the anoxic zone flows back to the aerobic zone and then the anaerobic zone but not flows back to the anaerobic zone; and the clear water tank is used for accommodating water in the membrane bioreactor and water in the clear water tank is lifted by a submersible pump to enter a high-level cistern to be supplied to the service area for the recycling of reclaimed water.
Description
Technical field
The present invention relates to environmental protection technical field, more specifically, the present invention relates in a kind of transport services district self-adaptation and self-stip water reclaiming system based on membrane bioreactor
Background technology
Along with the high speed development of Chinese national economy and to the continuing to increase of trip demand, the total kilometrage of highway in China is also increasing substantially.By 2009, the highway in China total kilometrage was 3,700,000 kilometers, and wherein the motorway mileage is 6.5 ten thousand kilometers, and Expressway Service is as the off-set facility of motorway, was accompanied by the fast development of expressway construction and was born.According to statistics, at present, existing more than 1600 families of the Expressway Service that is runing in the whole nation, the practitioner reaches more than 20 ten thousand people, is mainly vehicular traffic, driver and conductor and passenger services such as parking, oiling, vehicle maintenance, shopping, food and drink, rest are provided.The quantity in the similar service district with oiling and food and drink function of China's common road is then more huge.
The transport services district can produce the bigger sewage of a large amount of water quality, water yield fluctuation, and wherein the content of ammonia nitrogen and phosphorus is about 20-100mg/L and 5-10mg/L respectively.Services such as the bathing that provides of part service area simultaneously,, carwash make the surfactant component content in the sewage be higher than common sewage far away again.China's transport services district wastewater treatment rate is low, and large amount of sewage fails to realize qualified discharge, has brought serious pollution to environment after entering natural water, has destroyed the eubiosis, returns vegeto-animal growth simultaneously and human life has brought great harm.
At present adopting more for the processing of transport services district sewage is traditional anaerobism, anoxic and aerobic activated sludge process (A
2/ O method), biological contact oxidation process and anoxic and aerobic activated sludge process technologies such as (A/O methods), the poor-performing of the anti-water quality of these technologies, water yield fluctuation, effluent quality does not guarantee, the structures floor space is big, handled sewage is difficult to arrive the target of reuse, has caused the pollution of environment and the waste of great lot of water resources.
Summary of the invention
For overcoming the problem that the existing Sewage treatment systems in above-mentioned transport services district exists, the invention provides a kind of system by chemistry and biological bonded membrane bioreactor at service area sewage disposal and reuse.
According to an aspect of the present invention, provide in a kind of transport services district, it is characterized in that this system comprises: septic tank, equalizing tank, complete membrane bioreactor and clean water basin based on the water reclaiming system of membrane bioreactor;
Wherein, in the equalizing tank liquidometer is set; Septic tank is used to take in sewage, carries out the precipitation and the anaerobism nitration reaction of larger particles, and the water outlet overflow enters equalizing tank; Equalizing tank is used to carry out the mixing adjusting of water quality, the water yield, avoids the fluctuation of the water quality and quantity of different time sections water inlet;
Wherein, complete membrane bioreactor is used for the effusive sewage of equalizing tank is passed through anaerobic zone, oxygen-starved area and aerobic zone, and carries out solid-liquid separation through membrane cisterna; The aerobic zone mixed-liquor return is back to anaerobic zone again to the oxygen-starved area, and directly is not back to anaerobic zone;
Clean water basin are used for taking in the water that membrane bioreactor produces, and the water of clean water basin enters the elevated tank delivery service area by the submersible pump lifting and carries out middle water reuse.
According to another aspect of the present invention, provide in a kind of transport services district, having comprised based on the water reusing method of membrane bioreactor:
Step 10), septic tank are taken in sewage, carry out the precipitation and the anaerobism nitration reaction of larger particles, and the water outlet overflow enters equalizing tank;
Step 20), the equalizing tank mixing of carrying out water quality, the water yield regulates, and avoids the fluctuation of the water quality and quantity of different time sections water inlet;
Step 30), complete membrane bioreactor by anaerobic zone, oxygen-starved area and aerobic zone, and carries out solid-liquid separation through membrane cisterna to the effusive sewage of equalizing tank, the aerobic zone mixed-liquor return is back to anaerobic zone again to the oxygen-starved area, and directly is not back to anaerobic zone;
Step 40), clean water basin take in the middle water that membrane bioreactor produces, the water of clean water basin by submersible pump promote enter the elevated tank delivery service area carry out in the water reuse.
Generally speaking, system of the present invention has good adaptation water quality, water yield fluctuating nature, can effectively remove pollutents such as nitrogen phosphorus in the service area sewage and tensio-active agent, makes effluent quality reach middle water quality standard, and realizes the target of the middle water reuse more than 90%.In system of the present invention, but septic tank and the construction of equalizing tank site operation, other processing units are integrated suite of equipment, floor space is little, need not personal management's operation.The application's system has the function of self-adaptation and self-stip, the level of automation height.
Description of drawings
Fig. 1 is based on the composition structural representation of the water reclaiming system of membrane bioreactor in the district of transport services according to an embodiment of the invention;
Fig. 2 is to be floor map according to membrane bioreactor of the present invention;
Fig. 3 is a membrane bioreactor A sectional view;
Fig. 4 is a membrane bioreactor B sectional view.
Among the figure, shown in concrete Reference numeral correspond to respectively: 1 is anaerobic zone (anaerobic pond); 2 is oxygen-starved area (anoxic pond); 3 is aerobic zone (Aerobic Pond); 4 is membrane module district (membrane cisterna); 5 are watch-keeping cubicle (containing the micro computer automatic control system); 6 is membrane module; 7 is the membrane cisterna aerating system; 8 is membrane cisterna backflow submersible pump; 9 is anaerobic zone (anaerobic pond) stirring rake; 10 is oxygen-starved area (anoxic pond) stirring rake; 11 be anaerobic zone (anaerobic pond) to the oxygen-starved area overflow crest of weir of (anoxic pond); 12 is oxygen-starved area (anoxic pond) backflow submersible pump; 13 is the connected entrance of oxygen-starved area (anoxic pond) to aerobic zone (Aerobic Pond); 14 is the aerobic zone aerating system; 15 is the overflow crest of weir of aerobic zone (Aerobic Pond) to membrane cisterna; 16 is the Aerobic Pond submersible pump.
Embodiment
Below in conjunction with accompanying drawing and example, the water reclaiming system based on membrane bioreactor in a kind of transport services provided by the invention district is described further.
Fig. 1 illustrates in the district of transport services according to an embodiment of the invention the water reclaiming system based on membrane bioreactor.Generally speaking, the present invention adopts anaerobism, anoxic and aerobic membrane bioreactor to handle transport services district sewage, wherein, sewage enters septic tank after collecting, degrade in right amount partial organic substances and kill deleterious worm's ovum and the bacterium etc. of curing the disease of the relatively-high temperature anaerobic environment that utilizes the metabolism of microorganism to produce in septic tank.Sewage enters equalizing tank subsequently, and equalizing tank plays the effect of regulating water quality and quantity.After crossing water quality regulation, by anaerobism, anoxic and aerobic membrane biological reaction district, bio-reaction zone carries out the automatic adjusting of treatment capacity according to liquidometer successively.
Particularly, shown in Fig. 1-4, this water reclaiming system comprises septic tank, equalizing tank, complete membrane bioreactor and clean water basin, and complete membrane bioreactor comprises anaerobic zone 1, oxygen-starved area 2, aerobic zone 3 and membrane cisterna 4.Liquidometer is set in the equalizing tank.
Further combined with Fig. 1, the detailed description system respectively forms structure.Wherein, septic tank is used to take in sewage, behind the grid filtration of sewage through the septic tank front end, enters the precipitation of carrying out larger particles behind the septic tank, then sedimentary particulate matter is carried out anaerobic digestion and reacts, and the effluent adopting overflow type enters equalizing tank.Septic tank can effectively deposit large particulate matter in the sewage and waste paper scrap etc., and has the function of degradation of organic substances and anaerobic phosphorus release.
Equalizing tank is used to carry out the mixing adjusting of water quality, the water yield, avoids the fluctuation of the water quality and quantity of different time sections water inlet, and equalizing tank is provided with whipping appts mixing adjusting sewage.Equalizing tank is provided with high-water liquidometer and submersible pump, and equalizing tank is measured high water running after 30 minutes to 1 hour through liquidometer, increases the vacuum primingpump suction time by submersible pump, reduces the suction intermittent time, to adapt to the water quality and quantity of service area water use peak phase.
Sewage after equalizing tank is handled promotes through submersible pump and enters complete membrane bioreactor, and alternatively, for buried complete membrane bioreactor, the gravity flow of sewage inherent regulation pond enters, and the inlet channel through the anaerobic pond bottom flows into, and the bottom of inlet channel is provided with reverse checkvalve.The mixed solution that the water inlet of anaerobic zone 1 refluxes from equalizing tank and oxygen-starved area afterwards, as shown in Figure 3, anaerobic zone 1 is provided with stirrer 9, makes into that water and active sludge mix fully, and sewage enters the oxygen-starved area by the overflow port of anaerobic pond after anaerobic phosphorus release is handled.
As shown in Figure 4, oxygen-starved area 2 comprises stirrer 10, submersible pump 12 and overflow port 11.Backflow mixed liquor is to anaerobic pond 1, and quantity of reflux is 2-4 a times of flooding velocity.Water inlet is mainly from anaerobic zone water outlet and aerobic zone mixed solution, the oxygen-starved area to sewage carry out anoxic nitrated after, part refluxes through submersible pump 12 and enters anaerobic zone, replenishes the anaerobic zone organic matter and deeply releases phosphorus, and other oxygen-starved area water outlets enter aerobic zone through connected entrance.
As shown in Figure 4, aerobic zone 3 contains connected entrance 13, aerating system 14, overflow port 15 and submersible pump 16.Sewage is through after the anaerobic treatment, and the connected entrance 13 by anoxic pond 2 and Aerobic Pond 3 enters aerobic zone 3, and aerobic zone 3 is used for the degradation water organic pollutant, materials such as ammonia nitrogen carried out the go forward side by side oxygen of acting charitably of aerobic nitrification inhale phosphorus.Mixed solution after the processing flows into membrane cisterna through overflow port 15, and partially mixed liquid is back to anoxic pond through submersible pump.When Aerobic Pond 1/2 pond goes out to be provided with submersible pump 16 deeply and is used for the system off-line matting Aerobic Pond supernatant liquor returned and drain into equalizing tank.The aeration rate of aerating system 14 is controlled at lower level, for Aerobic Pond provides aerobic nitrification necessary oxygen, the Aerobic Pond dissolved oxygen is controlled at about 2.5mg/L under normal running (operation) conditions.Aerating system 14 is out of service when system carries out the off-line matting to membrane module.
The middle water that membrane bioreactor produces flows into clean water basin, can be used for carwash greening etc.Enter elevated tank for water reuse in can carrying out to service area from clean water basin by the submersible pump lifting.
Wherein, because the surplus sludge volume that biological treatment system produces is few, special sludge sump can be set, a small amount of residual sludge reflux of generation is to septic tank, and the periodic cleaning septic tank reaches the effect of spoil disposal.
Bio-reaction system is back to anaerobic zone again with the aerobic zone mixed-liquor return to the oxygen-starved area, rather than directly be back to anaerobic zone, the anaerobic environment that has guaranteed anaerobic zone is not destroyed, oxygen-starved area backflow mixed liquor to anaerobic zone carries out further anaerobic degradation for the larger molecular organics that is difficult to degrade, and is easy to carry out follow-up degraded.According to the practical situation of pollutents such as the nitrogen phosphorus of sewage and tensio-active agent, pollutent is effectively degraded, guaranteed effluent quality reach in the water reuse standard.
But the middle water reuse that is produced is the water of flushing the toilet of service area, more than 90% of the water water yield of flushing the toilet in the time of can saving not reuse.The car wash water of reuse can be saved a large amount of tap water resources, and a large amount of middle water that middle water reuse produces can guarantee that service area has competent car wash water and needn't use the tap water carwash.The middle water of service area generation every day also guarantees greening and the additional demand of landscape water in the district fully, greatly reduces the demand to tap water in guaranteeing service area in the each side water.
Complete membrane bioreactor is adjusted the operation of operation scheme automatically according to service area water use peak phase and low ebb phase, guaranteed that this system can not be subjected to the greater impact of water quality and quantity, guaranteed that simultaneously the water quality of treat effluent meets or exceeds the standard of middle water reuse, the adjustment of operation scheme simultaneously also can change the operation scheme of equipment component according to the variation of the water yield, effectively saves power consumption.
The automatic cleaning of membrane module has realized the automatic operation of the automatic on-line clear water back flushing of membrane module, online matting and off-line matting, and need not great amount of manpower and operation of equipment.Adopt the service area water consumption to carry out few night simultaneously, the shortcoming that sewage can't be handled when having avoided the water consumption peak.And clean the back system performance and recover fast, do not influence effluent quality.Wherein, carry out the night that online clear water back flushing was underestimated the district every 48 hours in the service area water automatically, and the counter-rotating of water outlet vacuum primingpump is extracted the clean water basin clear water and carried out the online clear water back flushing of membrane module.Online matting is determined by experiment scavenging period every other month or according to the membrane module performance, the scavenging period section is the water low ebb phase, the membrane bioreactor Inlet and outlet water stops during online matting, by peristaltic pump with add the robotics medicine system startup that explosive barrel forms, soaked by chemical injection membrane module film silk or flat sheet membrane inside that peristaltic pump will manually dilute, system recovery normally moves behind the stop certain hour.
The off-line matting design of system is carried out at aerobic zone.The off-line matting is determined by experiment at quarterly intervals or according to the membrane module performance, and the scavenging period section is all carries out the night of water low ebb phase.After the off-line chemical cleaning system starts, Sewage treatment systems stops automatically, membrane cisterna backflow submersible pump and aerating system start after half an hour, the membrane cisterna submersible pump is pumped to the oxygen-starved area with the membrane cisterna mixed solution, be positioned at submersible pump suction supernatant liquor that aerobic zone 1/2 highly locates to equalizing tank, the membrane cisterna mixed solution is sucked up to the oxygen-starved area fully after moving one to two hours continuously, aerobic zone 1/2 was highly located submersible pump and was stopped this moment, online clear water back-purge system starts, the membrane cisterna water level stops after reaching high-water, and this moment, membrane cisterna was a clear water.Robotics medicine system B (by peristaltic pump and add explosive barrel and forms) starts, and the chemical adding membrane cisterna that will be met the membrane cisterna weaker concn by peristaltic pump carries out chemical immersion to membrane module.Be pumped to equalizing tank and dilute via leading to equalizing tank and by the pipeline of solenoid control membrane cisterna being contained the chemical mixed solution by the membrane cisterna submersible pump after cleaning is finished, suction (time control) is finished back liquidometer control entire sewage and is handled normally startup and resume operation.
Example 1
Certain has the national highway service area of function such as food and drink shopping carwash, daily output crude sewage 200m
3, water-quality guideline is: COD value 320-650mg/L, ammonia nitrogen concentration are 20-96mg/L, and total phosphorus concentration is 3.4-11mg/L, and the pH value is 6.5-8.5, and tensio-active agent (LAS) concentration is 19-86mg/L.This service area civil water peak period concentrates on about 6 of at 10 in the morning to 2 pm and evenings, and night, water consumption was less.The membrane module outlet system adopts 3 kinds of operation scheme operations, is respectively: 1, and water outlet 12 minutes stopped 2 minutes; 2, water outlet 10 minutes stopped 4 minutes; 3, water outlet 8 minutes stopped 4 minutes.3 kinds of operation scheme are respectively at above-mentioned water use peak phase, the period when a river is at its normal level and water low ebb phase.The change of program is by the liquidometer control that is positioned at equalizing tank, keeps high liquid level or low liquid level to adjust automatically after 30 minutes at the liquidometer of equalizing tank.
Service area sewage precipitates with nitrated through entering septic tank behind the grid filtration, water outlet enters equalizing tank, equalizing tank is provided with mechanical stirring device the water quality and quantity adjusting is carried out in water inlet, promote by submersible pump subsequently and enter complete self-adaptation self-stip membrane bioreactor system, through after anaerobism, anoxic and the aerobic treatment, effluent quality reaches the one-level A standard of " urban wastewater treatment firm pollutant emission standard " GB 18918-2002 defined.20m in the water outlet
3Lifting enters elevated tank and is used for replenishing the waste water of flushing the toilet, 20m
3Be used for the carwash service that service area provides, the water of greening and water landscape replenished in other part water outlets were used to distinguish, and near the field irrigation channel the residue treating water enters is used for field irrigation.
Example 2
Certain sewage in expressway service is behind grid filtration, respectively through entering complete self-adaptation self-stip membrane bioreactor system behind septic tank and the equalizing tank, system's inlet channel is arranged at anaerobic pond 1 bottom, pipeline is provided with reverse checkvalve, anaerobic pond is provided with stirrer 9 combined sewages and anaerobic sludge, increase through phosphate content in the mixed solution behind the anaerobic phosphorus release, organic concentration increases to some extent, and the difficult degradation larger molecular organics that is mainly in the water is decomposed into due to the small molecules easily biodegradable organics.11 overflows enter anoxic pond 2 to sewage through overflow port subsequently, nitrate in the sewage and nitrite form nitrogen through anti-nitration reaction and are removed, anoxic pond 2 is provided with stirrer 10 and diving reflux pump 12, and backflow mixed liquor is to anaerobic pond 1, and quantity of reflux is 2-4 a times of flooding velocity.Sewage enters Aerobic Pond 3 through the connected entrance 13 by anoxic pond 2 and Aerobic Pond 3 after the anaerobic treatment, carries out the organic DeR of aerobic suction phosphorus in Aerobic Pond.When Aerobic Pond 1/2 pond goes out to be provided with submersible pump 16 deeply and is used for the system off-line matting Aerobic Pond supernatant liquor returned and drain into equalizing tank.Aerating system 14 is controlled at about 2.5mg/L the Aerobic Pond dissolved oxygen for Aerobic Pond provides the necessary oxygen of aerobic nitrification under normal running (operation) conditions.Aerating system 14 is out of service when system carries out the off-line matting to membrane module.Sewage enters membrane cisterna through overflow port 15 afterwards, carries out water outlet after the solid-liquid separation through the filteration of film.Membrane cisterna is provided with diving reflux pump 8 backflow aerobic mixed solution to anoxic pond and carries out anti-nitration reaction.Treat effluent partly is promoted to the elevated tank that is positioned at the service area roof, provides the flushing the toilet of whole service area, carwash, greening and landscape water to replenish water.
Example 3
Certain high road service area self-adaptation self-stip membrane bioreactor system day is handled water yield 150m
3This Sewage treatment systems adopts hollow fiber film assembly to carry out the filtration treatment of sewage.Carried out online clear water back flushing every 48 hours 0 of morning, system's automatic control system is carried out the program of the lasting water outlet of membrane cisterna to minimum liquid level before the back flushing, goes out the clear water back flushing membrane module of water pump suction clean water basin subsequently, and this program repeat is carried out 3-5 time.
Online matting program was carried out once in per 30 days.To go out water pump out of service in system when carrying out this program, to be diluted to the matting medicament sodium hydroxide of suitable concn and citric acid by the peristaltic pump of the chemical medicine system A of junctional membrane assembly injects film silk inside and soaks, after totally 4 hours, the chemical agent that online clear water back-purge system starts membrane module inside recoils into membrane cisterna.Because film silk volume inside is limited, can not cause big influence to biological treatment system so enter the chemical agent of membrane cisterna.
The every three months system carries out an off-line matting program, and this step is arranged at 0 o'clock morning of water low ebb phase.When program was carried out, biological treatment system water inlet and Aerobic Pond aerating system 14 were out of service, membrane module continue water outlet to membrane module pond 4 water levels to lowest water level, membrane cisterna submersible pump 8 continuous services carry liquidometer to lowest order until submersible pump.Be positioned at submersible pump 16 operations of Aerobic Pond 3 after the off-line wash procedure started 1 hour, it is out of service until membrane module pond submersible pump 8 that equalizing tank is returned in Aerobic Pond 3 supernatant liquor extractings.After this online clear water back-purge system starts until the paramount liquid level of membrane cisterna 4 median water level.Chemistry medicine system B starts chemical agent sodium hydroxide injection membrane cisterna, under the effect of membrane cisterna aerating system 7, mix, after this system kept this state 3 hours, after this closed electromagnetic valve of the pipeline that is back to anoxic pond of membrane cisterna submersible pump 8, the magnetic valve that is back to equalizing tank is opened, with the scavenging solution extracting to equalizing tank.After this same program operation adopts citric acid that membrane module is carried out soaking and washing, and after program was all finished, self-adaptation self-stip membrane bioreactor system recovered normal operation.Cleaning process needs 8 hours approximately.
It should be noted that at last, above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, and on using, can extend to other modification, variation, application and embodiment, think that simultaneously all such modifications, variation, application, embodiment are within the spirit and scope of the present invention.
Claims (15)
- In the transport services district based on the water reclaiming system of membrane bioreactor, it is characterized in that this system comprises: septic tank, equalizing tank, complete membrane bioreactor and clean water basin;Wherein, in the equalizing tank liquidometer is set; Septic tank is used to take in sewage, carries out the precipitation and the anaerobism nitration reaction of larger particles, and the water outlet overflow enters equalizing tank; Equalizing tank is used to carry out the mixing adjusting of water quality, the water yield, avoids the fluctuation of the water quality and quantity of different time sections water inlet;Wherein, complete membrane bioreactor is used for the effusive sewage of equalizing tank is passed through anaerobic zone, oxygen-starved area and aerobic zone, and carries out solid-liquid separation through membrane cisterna; The aerobic zone mixed-liquor return is back to anaerobic zone again to the oxygen-starved area, and directly is not back to anaerobic zone;Clean water basin are used for taking in the water that membrane bioreactor produces, and the water of clean water basin enters the elevated tank delivery service area by the submersible pump lifting and carries out middle water reuse.
- 2. system according to claim 1 is characterized in that the septic tank front end is provided with grid, is used to filter sewage.
- 3. system according to claim 1, it is characterized in that, equalizing tank is provided with high-water liquidometer, whipping appts and submersible pump, wherein whipping appts is used for mixing adjusting sewage, the high-water liquidometer is used to detect the equalizing tank water level, the high water running of equalizing tank increased the vacuum primingpump suction time by submersible pump after 30 minutes.
- 4. system according to claim 1 is characterized in that complete membrane bioreactor comprises anaerobic zone, oxygen-starved area, aerobic zone and membrane cisterna; , the anaerobic zone bottom is provided with inlet channel, and the bottom of inlet channel is provided with reverse checkvalve.
- 5. system according to claim 4, it is characterized in that, the mixed solution that the water inlet of anaerobic zone is effusive from equalizing tank and reflux in the oxygen-starved area, rear end, anaerobic zone is provided with stirrer, make into that water and active sludge mix, sewage enters the oxygen-starved area by the overflow port of anaerobic pond after anaerobic phosphorus release is handled.
- 6. system according to claim 4 is characterized in that the oxygen-starved area comprises stirrer, submersible pump and overflow port; The water inlet of oxygen-starved area mixes through stirrer from anaerobic zone water outlet and aerobic zone mixed solution, and it is nitrated that anoxic is carried out to sewage in the oxygen-starved area.
- 7. system according to claim 4 is characterized in that aerobic zone comprises connected entrance, aerating system, overflow port and submersible pump; Sewage enters by connected entrance through after the anaerobic treatment, aerating system is used for the degradation water organic pollutant, materials such as ammonia nitrogen are carried out the go forward side by side oxygen of acting charitably of aerobic nitrification inhale phosphorus, mixed solution after the processing flows into membrane cisterna through overflow port, and the submersible pump that partially mixed liquid is provided with through depths, 1/2 pond is back to anoxic pond.
- 8. system according to claim 4 is characterized in that membrane cisterna comprises membrane module, aerating system and submersible pump, and submersible pump is used for backflow mixed liquor to anoxic pond, and membrane module is used for solid-liquid separation, filters out active sludge.
- 9. system according to claim 8 is characterized in that, the two position meter is set in the membrane cisterna, increases the suction intermittent time after low water level operation surpasses 30 minutes, reduces the water outlet time; A small amount of residual sludge reflux that complete membrane bioreactor produces is to septic tank; Complete membrane bioreactor was adjusted automatically according to service area water use peak phase and low ebb phase.
- 10. system according to claim 1, it is characterized in that, system comprises also by peristaltic pump and adds the robotics medicine system that explosive barrel is formed that the chemical that peristaltic pump will meet the membrane cisterna weaker concn carries out chemical immersion by adding explosive barrel adding membrane cisterna to membrane module.
- 11. based on the water reusing method of membrane bioreactor, comprising in the transport services district:Step 10), septic tank are taken in sewage, carry out the precipitation and the anaerobism nitration reaction of larger particles, and the water outlet overflow enters equalizing tank;Step 20), the equalizing tank mixing of carrying out water quality, the water yield regulates, and avoids the fluctuation of the water quality and quantity of different time sections water inlet;Step 30), complete membrane bioreactor by anaerobic zone, oxygen-starved area and aerobic zone, and carries out solid-liquid separation through membrane cisterna to the effusive sewage of equalizing tank, the aerobic zone mixed-liquor return is back to anaerobic zone again to the oxygen-starved area, and directly is not back to anaerobic zone;Step 40), clean water basin take in the middle water that membrane bioreactor produces, the water of clean water basin by submersible pump promote enter the elevated tank delivery service area carry out in the water reuse.
- 12. method according to claim 11 is characterized in that, in the step 10), and the grid filtration sewage that septic tank is provided with by front end.
- 13. method according to claim 11 is characterized in that step 20) in, whipping appts in the equalizing tank mixes regulates sewage, detect the equalizing tank water level by the high-water liquidometer, the high water running of equalizing tank increased the vacuum primingpump suction time by submersible pump after 30 minutes.
- 14. method according to claim 11 is characterized in that step 30) also comprise:Step 310), equalizing tank is effusive and reflux in the oxygen-starved area, rear end mixed solution is by the stirrer that anaerobic zone is provided with, and makes into that water and active sludge mix, sewage enters the oxygen-starved area by the overflow port of anaerobic pond after anaerobic phosphorus release is handled;Step 320), anaerobic zone water outlet and aerobic zone mixed solution mix by the oxygen-starved area through stirrer, it is nitrated that sewage is carried out anoxic;Step 330), sewage enters by connected entrance through after the anaerobic treatment, organic pollutant in the degradation water, materials such as ammonia nitrogen are carried out the go forward side by side oxygen of acting charitably of aerobic nitrification inhale phosphorus, mixed solution after the processing flows into membrane cisterna through overflow port, and the submersible pump that partially mixed liquid is provided with through depths, 1/2 pond is back to anoxic pond;Step 340), by submersible pump with mixed-liquor return to anoxic pond, and use membrane module to carry out solid-liquid separation, filter out active sludge.
- 15. method according to claim 14 is characterized in that, the two position meter is set in the membrane cisterna, increases the suction intermittent time after low water level operation surpasses 30 minutes, reduces the water outlet time; A small amount of residual sludge reflux that complete membrane bioreactor produces is to septic tank; Complete membrane bioreactor was adjusted automatically according to service area water use peak phase and low ebb phase.
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| CN102515431A (en) * | 2011-12-14 | 2012-06-27 | 郑州大学 | Integrated technology for high efficiency nitrogen and phosphorus removal based on sludge emission reduction and device thereof |
| CN102616999A (en) * | 2012-04-11 | 2012-08-01 | 江苏韦帕环境工程有限公司 | Sewage purifying and recycling device |
| CN102701539A (en) * | 2012-06-28 | 2012-10-03 | 苏州科博思流体科技有限公司 | Domestic sewage treatment device |
| CN102757160A (en) * | 2012-08-07 | 2012-10-31 | 江苏省环境科学研究院 | Efficient nitrogen and phosphorus removal method for sewage properties-classified treatment in highway service area |
| CN104402176A (en) * | 2014-12-23 | 2015-03-11 | 重庆澄露环境工程有限公司 | Sewage treatment method and treatment device |
| CN105936547A (en) * | 2016-06-23 | 2016-09-14 | 肇庆市鹏凯环保装备有限公司 | Vertical, unpowered, internal circulation, and intelligent membrane bioreactor |
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2010
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| CN102515431A (en) * | 2011-12-14 | 2012-06-27 | 郑州大学 | Integrated technology for high efficiency nitrogen and phosphorus removal based on sludge emission reduction and device thereof |
| CN102616999A (en) * | 2012-04-11 | 2012-08-01 | 江苏韦帕环境工程有限公司 | Sewage purifying and recycling device |
| CN102701539A (en) * | 2012-06-28 | 2012-10-03 | 苏州科博思流体科技有限公司 | Domestic sewage treatment device |
| CN102757160A (en) * | 2012-08-07 | 2012-10-31 | 江苏省环境科学研究院 | Efficient nitrogen and phosphorus removal method for sewage properties-classified treatment in highway service area |
| CN104402176A (en) * | 2014-12-23 | 2015-03-11 | 重庆澄露环境工程有限公司 | Sewage treatment method and treatment device |
| CN105936547B (en) * | 2016-06-23 | 2019-02-01 | 肇庆市鹏凯环保装备有限公司 | Vertical unpowered interior cycle intelligent membrane bioreactor |
| CN105936547A (en) * | 2016-06-23 | 2016-09-14 | 肇庆市鹏凯环保装备有限公司 | Vertical, unpowered, internal circulation, and intelligent membrane bioreactor |
| CN106082557A (en) * | 2016-08-08 | 2016-11-09 | 无锡合思环境技术有限公司 | A kind of low-energy-consumption high-efficiency sewage disposal device |
| CN106315997A (en) * | 2016-10-21 | 2017-01-11 | 申忠领 | Reclaimed water reuse device |
| CN106396266A (en) * | 2016-10-21 | 2017-02-15 | 申忠领 | Small domestic sewage treatment device |
| CN106315997B (en) * | 2016-10-21 | 2019-08-20 | 盛铁丰 | A kind of Treated sewage reusing device |
| CN106316000A (en) * | 2016-10-27 | 2017-01-11 | 申忠领 | Durable sewage treatment device |
| CN107055774A (en) * | 2016-12-12 | 2017-08-18 | 无锡市拜沃特环保科技有限公司 | A kind of simultaneous denitrification removes algae membrane bioreactor |
| CN111960620A (en) * | 2020-09-01 | 2020-11-20 | 重庆耐德环境技术有限公司 | High ammonia nitrogen wastewater treatment device and method for expressway service area |
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