CN202688146U - Domestic sewage purifying recycling device - Google Patents
Domestic sewage purifying recycling device Download PDFInfo
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- CN202688146U CN202688146U CN 201220150615 CN201220150615U CN202688146U CN 202688146 U CN202688146 U CN 202688146U CN 201220150615 CN201220150615 CN 201220150615 CN 201220150615 U CN201220150615 U CN 201220150615U CN 202688146 U CN202688146 U CN 202688146U
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- film reaction
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Abstract
A domestic sewage purifying recycling device comprises a pretreatment unit, a deepening treatment unit and a water storage backwashing unit. The pretreatment unit comprises a grid, a sand setting sedimentation tank and an adjusting tank. A submersible sewage pump is arranged in the adjusting tank. The deepening treatment unit comprises an anoxia tank, a membrane reaction tank with a filtering membrane and a sludge tank, wherein the anoxia tank is connected with the membrane reaction tank through a water outlet weir tank, and sludge filtered in the membrane reaction tank is lifted to the sludge tank through an air lift device. The water storage backwashing unit comprises a high-level water tank and a disinfection tank. Clear water in the high-level water tank flows into the disinfection tank through an overflow port and is discharged or recycled after disinfected in the disinfection tank. When the membrane reaction tank is backwashed, the clear water in the high-level water tank flows back to the filtering membrane to backwash the filtering membrane, and the lowermost part of the high-level water tank is higher than the filtering membrane. An independent backwashing system is not required by arranging the high-level water tank, investment can be saved, a system is controlled easily, and the domestic sewage purifying recycling device is convenient to operate, runs stably and is good in water treatment effect.
Description
Technical field
The utility model relates to technical field of waste water processing, especially relates to a kind of specially sanitary sewage the purification and the device of reuse.
Background technology
The principal pollutant of sanitary sewage are COD, BOD, SS and a small amount of N, P, LAS(linear alkylbenzene sulphonic acid), according to common people's daily schedule, sewage discharge mainly concentrates on early, middle and late three time periods, and the evenly water yield of equalizing tank need be set.Therefore sanitary sewage characteristic main manifestations is: Pollutant levels are low, good biodegradability, sewage discharge are very inhomogeneous, contain a small amount of grease etc.
The technology of conventional process sanitary sewage can be eliminated the part pollutent, and the pollutent indexs such as COD, BOD and heavy metal are dropped to safety dumping standard or middle water quality standard, but can't eliminate oligodynamical contact scar thing contained in the draining fully.Adopt reverse osmosis membrane technology can thoroughly remove these pollutents, realize the regeneration effluent under the stricti jurise.Integrated with conventional processes and membrane technique, sewage or waste water can be become the reuse water of different quality standard.
Membrane biological processor (MBR) is the novel process of membrane separation technique and biotechnology combination.Be used in the sewage and waste water process field, utilize film spare to carry out solid-liquid separation, mud or the impurity of holding back is back to (or reservation) in bio-reactor, the clear water of processing sees through the film draining, consisted of the membrane bioreactor system of sewage disposal, the effect of membrane module is equivalent to the second pond in the traditional wastewater biological treatment system.
The film treater all needs regularly film to be carried out backwash, cleaning out impurity and the pollutent that is detained in the film, otherwise does not clear up for a long time, and film will stop up, and sewage treating efficiency is reduced, and reduce the life-span of film.Yet the backwashing system of common membrane biological processor needs special water pipeline and water pump, by water pump water purification is sprayed to enter the film treater, comes flushing membrane spare filtrating area filtrate by certain hydraulic pressure.This method need to lay special pipeline, needs to consume water purification, need to be equipped with water pump and water-storing tank, and cost is high, complicated operation.In addition, conventional backwash frequency is generally a few days to a few weeks backwash once, and backwash is longer pitch time, and film treater filtrating area delay impurity is more, and backwash is not thorough, easily lumps, so that water treatment effect reduces, maintenance is inconvenience also.
The utility model content
For the problems referred to above that prior art exists, the applicant provides one way of life sewage purification and reuse device.The utility model need not independent backwashing system by the configuration elevated tank, can save investment, and system's control is simple, and easy to operate, stable, water treatment is effective.
The technical solution of the utility model is as follows:
One way of life sewage purification and reuse device, comprise the pretreatment unit, in-depth processing unit and the water storage backwash unit that are connected by pipeline, described pretreatment unit comprises the grid, sand setting settling tank, the equalizing tank that are connected by pipeline successively from the sanitary sewage water-in; Be provided with submersible sewage pump in the described equalizing tank, described submersible sewage pump will enter the in-depth processing unit through pretreated sewage in the equalizing tank; Described in-depth processing unit is from through the pretreated sewage import, comprises successively anoxic pond, is equipped with film reaction pond, the sludge sump of filtering membrane; Described anoxic pond is connected by the effluent weir pond with the film reaction pond, and the mud that described film reaction pond inner filtration goes out is promoted to described sludge sump by air-lift device; Described water storage backwash unit comprises elevated tank and sterilization pool; Be pumped into elevated tank through the clear water that filters by pump in the described film reaction pond, the clear water in the elevated tank flows into sterilization pool by overflow port, discharging or reuse after sterilization pool carries out disinfection; During the described film reaction of backwash pond, the clear water in the elevated tank is back to described filtering membrane it is carried out backwash; The bottommost of described elevated tank is higher than described filtering membrane.
Described grid, sand setting settling tank, equalizing tank, anoxic pond, film reaction pond, sludge sump are buried, and described elevated tank is ground type.Described submersible sewage pump has two, a preparation and a use.Described film reaction pond is equipped with blower fan, and blower fan has two pipelines, and the first passes in the film reaction pond, send air to the film reaction pond; It two is to pass in the film reaction pond, with the mud air lift in the film reaction pond to sludge sump.The bottommost of described elevated tank is higher than 1.5 ~ 3.0 meters of described filtering membranes.
The technique effect that the utility model is useful is:
This water treatment system is provided with special-purpose elevated tank in water outlet place, can be used as filtering membrane backwash water, to the membrane module auto-flushing, makes system's control simple, the operation of being more convenient for, and cleaning performance is good; Needn't establish separately filtering membrane backwash and cleaning system, save investment; Without the backwash water pump etc., joint medicine working cost.The native system water outlet can be seen outlet effect by elevated tank, and is stable, and outlet effect can reach the reuse water standard; Other equipment all can be done buried structure except elevated tank, have saved floor space.
Description of drawings
Fig. 1 is sewage disposal flow process and the equipment schematic diagram of this purifying domestic sewage reclamation set.
Embodiment
Below in conjunction with accompanying drawing, the utility model is specifically described.
The utility model comprises pretreatment unit, in-depth processing unit and the water storage backwash unit that is connected by pipeline, the purpose of pretreatment unit is the interception large granular impurity, the in-depth processing unit can further purify waste water the water purification for can directly utilizing, water storage backwash unit is for the backwash water being provided for the in-depth processing unit, and the water purification of handling well is stored, waits for utilization.
One, pretreatment unit:
1, grid 2: sanitary sewage is in water-in 1 enters grid 2, the body of grid 2 is made box by stainless steel, wherein vertically tiltedly put an aperture plate 3, aperture plate 3 is mainly used to tackle the agglomerate floater in the sewage, with the normal operation that guarantees the subsequent disposal unit and effectively alleviate and process load, for the long-term normal operation of system is given security.The grid slag that aperture plate 3 is tackled needs periodic cleaning, can do refuse treatment.
2, the sand setting settling tank 4: the sewage through grid 2 enters into sand setting settling tank 4 by pipeline self.Sand setting settling tank 4 is the square pond of skeleton construction, arranging of this pond mainly is to strengthen pretreated effect, the larger inorganic particle impurity of precipitation proportion, effectively guarantee that submersible sewage pump does not stop up stuck etc., greatly prolonged the work-ing life of submersible sewage pump, be convenient to simultaneously sedimental cleaning work, prolong the useful volume in subsequent adjustment pond.The mud of sand setting settling tank 4 only needs regularly suction outward transport in this pond.
3, equalizing tank 6: the sewage of processing through sand setting settling tank 4 enters into equalizing tank 6 by pipeline self.Equalizing tank 6 is the square pond of skeleton construction.Because water quality, the water yield during from each are all different, general peak flow is 2 ~ 6 times of average treatment amount, and therefore for Sewage treatment systems is moved continuously and stably, while regulating pondage and homogenizing water quality are so design an equalizing tank 6.The design useful volume of this equalizing tank 6 is generally 4 ~ 8 times of average treatment amount.Equalizing tank 6 built-in submersible sewage pumps 5 are promoted to follow-up sewage treatment unit to guarantee certain rated flow.Select two of WQ type submersible sewage pumps, 1 usefulness 1 is standby, and the submersible sewage pump 5 of employing has crushing function, guarantees that water pump can normally move for a long time.
Two, in-depth processing unit:
1, anoxic pond 8: enter anoxic pond 8 through equalizing tank 6 pretreated sewage by pipeline 9.This anoxic pond 8 can improve the clearance of ammonia nitrogen in sewage.Anoxic pond design useable glass steel or carbon steel material manufacturing.
2, the film reaction pond 10: the water in the anoxic pond 8 enters in the film reaction pond 10 by effluent weir pond 11.Be provided with filtering membrane 12 in the film reaction pond 10, filtering membrane 12 employing application numbers are a kind of soft sheet film method waste water treatment intensive device of 201010160788.4.Film reaction pond 10 is equipped with two gas blower 13(models to select low noise rotary type blower fan), gas blower 13 passes into air in film reaction pond 10, carry out aeration, the cleaning action of complement filter film 12, organism in this device is purified water quality by Institute of Micro-biology's absorption, degraded.Film reaction pond 10 useable glass steel or carbon steel material manufacturing.
3, sludge sump 14: 10 interior processes purify sewage in the film reaction pond, isolate mud, regularly carry out air lift by gas blower 13, enter into by sludge pipe 15 and to carry out the concentrated and anaerobic nitrification of mud in the sludge sump 14, be thereby that mud under anaerobic can carry out the nitrated purpose that reaches sludge reduction to mud by nitrifier, the mud in the sludge sump 14 is regularly aspirated by fecal suction truck.
Three, water storage clean unit:
1, elevated tank 16: the material of elevated tank 16 can be PE or carbon steel material, and sewage by behind the filtering membrane 12, is evacuated to elevated tank 16 through suction water pump 17 in film reaction pond 10, enter in the water tank from elevated tank water-in 20.Be provided with overflow port 18 at the top of elevated tank 16, clear water is flow in the sterilization pool 19 by overflow port 18.Because elevated tank 16 rest on the ground, and can very clearly see the outlet effect of system.The effect of elevated tank 16 has two, and the one, the water after processing through filtering membrane 12 is stored and flows in the sterilization pool 19, the 2nd, filtering membrane 12 is carried out backwash.
Common membrane filtration sewage purification system also needs filtering membrane is carried out backwash, but common backwash mode is that a backwash water tank is set specially, and the in-built backwash water of backwash water tank is from the water purification of water supply line; And native system backwash water is the clear water that obtains behind the membrane filtration, does not need additionally to lay water supply line, has saved simultaneously water resources.
In order to realize the backwash function, the bottommost of elevated tank 16 is higher than 1.5 ~ 2.5 meters on earth's surface, the height that namely is higher than filtering membrane 12 is 1.5 ~ 3.0 meters, make the water in the water tank to filtering film component certain discrepancy in elevation be arranged, the volume of elevated tank 16 designs for the required water yield of the each backwash of film through calculating, be best backwash intensity, thereby reach preferably backwash effect.The operation of filtering membrane 12 is adopted and is opened 8 and stop 2 operational mode, and in stopping 2 process, suction water pump 17 quits work, and the outlet valve of pump is closed, and the backwash outlet valve 7 of elevated tank 16 is opened simultaneously, and membrane module is carried out back flushing, lasts 2 minutes; After backwash finished, backwash outlet valve 7 was closed the outlet valve of opening simultaneously suction water pump 17, and 17 startups of suction water pump bring into operation, system's normal operation.
The backwash timed interval of common membrane filtration sewage purification system is longer, for a few hours to a couple of days, system's continuous filtration time is longer, the impurity level of holding back in the film is large, need to consume more water and time during backwash, and the every filtration of native system 8 minutes is with regard to backwash 2 minutes, the impurity level in 8 minutes inner membrances seldom, backwash can recoil away the impurity in the film in 2 minutes basically, had kept the cleaning of film.And the backwash water namely is purifying waste water in the elevated tank 16, and is easy to use, with low cost.
Find that such as system's long-time running the membrane module operational conditions is not good enough, in order to make membrane module that better operating performance be arranged, can adopt the matting medicament for preparing in the process of backwash, to add in elevated tank 16, perhaps in the backwash water pipeline, set up dosing pipe by dosing pump and can realize the backwash adding-reagent automation.
2, sterilization pool 19: clear water is flow in the sterilization pool 19 by the overflow port 18 of elevated tank 16, in sterilization pool 19 by adding sterilizing agent to the sewage disinfection, waste water after the processing can reach reuse standard, can directly discharge or Reuse on Environment watering or carwash punching ground etc.Sterilizing agent is selected trichloroisocyanuric acid, is organic chlorine tablets, adopts the mode of direct contact lysis, because these chlorine tablets have saturated dissolving, therefore can automatically change chemical feeding quantity according to the changing conditions of processing the water yield.Sterilization pool 19 useable glass steel or carbon steel material manufacturing.
In aforesaid device, grid 2, sand setting settling tank 4, equalizing tank 6, anoxic pond 8, film reaction pond 10, sludge sump 14, sterilization pool 19 are buried, and elevated tank 16 is ground type.Because the surplus sludge volume that produces of this sewage treatment process is less, thus the mud that the design produces system by film reaction pond 10 air lifts to sludge sump 14, be responsible for regularly suction by environmental sanitation department, final outward transport landfill or the burning disposal done.
Consider the removal of P in the water outlet, anaerobic pond is set before membrane cisterna, in anaerobic hydrolysis-acidification-aerobic processes, polyP bacteria is dominant bacteria in anoxic pond 8, consisted of the main body of active sludge flco, it absorbs the organism of molecule, simultaneously, the phosphorus in the R poly-phosphate discharges by hydrolysis in the cell with being stored in, and necessary energy is provided.And in film reaction pond 10 subsequently, the organism that polyP bacteria absorbs is with oxidized decomposition and energy is provided, simultaneously, can from sewage, absorb the more phosphorus that discharges than acidication condition, quantitatively considerably beyond the synthetic required phosphorus amount of its cell, the form of phosphorus with poly-phosphate is housed in the thalline, and forms high phosphorus sludge, discharge by the excess sludge system, thereby can obtain goodish phosphor-removing effect.
In sum, this engineering core process is the treatment process of activated sludge process and membrane filtration, consider that sewage inevitably contains large floating matter or the suspended substances such as cloth, plastics bag, water quality, the water yield have larger fluctuation, therefore in prime grid and equalizing tank are set, guarantee the normal operation of subsequent processing device.
Claims (5)
1. one way of life sewage purification and reuse device comprises the pretreatment unit, in-depth processing unit and the water storage backwash unit that are connected by pipeline, it is characterized in that:
Described pretreatment unit comprises the grid, sand setting settling tank, the equalizing tank that are connected by pipeline successively from the sanitary sewage water-in; Be provided with submersible sewage pump in the described equalizing tank, described submersible sewage pump will enter the in-depth processing unit through pretreated sewage in the equalizing tank;
Described in-depth processing unit is from through the pretreated sewage import, comprises successively anoxic pond, is equipped with film reaction pond, the sludge sump of filtering membrane; Described anoxic pond is connected by the effluent weir pond with the film reaction pond, and the mud that described film reaction pond inner filtration goes out is promoted to described sludge sump by air-lift device;
Described water storage backwash unit comprises elevated tank and sterilization pool; Be pumped into elevated tank through the clear water that filters by pump in the described film reaction pond, the clear water in the elevated tank flows into sterilization pool by overflow port, discharging or reuse after sterilization pool carries out disinfection; During the described film reaction of backwash pond, the clear water in the elevated tank is back to described filtering membrane it is carried out backwash; The bottommost of described elevated tank is higher than described filtering membrane.
2. purifying domestic sewage reclamation set according to claim 1 is characterized in that described grid, sand setting settling tank, equalizing tank, anoxic pond, film reaction pond, sludge sump are buried, and described elevated tank is ground type.
3. purifying domestic sewage reclamation set according to claim 1 is characterized in that described submersible sewage pump has two, a preparation and a use.
4. purifying domestic sewage reclamation set according to claim 1 is characterized in that described film reaction pond is equipped with blower fan, and blower fan has two pipelines, and the first passes in the film reaction pond, send air to the film reaction pond; It two is to pass in the film reaction pond, with the mud air lift in the film reaction pond to sludge sump.
5. purifying domestic sewage reclamation set according to claim 1 is characterized in that the bottommost of described elevated tank is higher than 1.5 ~ 3.0 meters of described filtering membranes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220150615 CN202688146U (en) | 2012-04-11 | 2012-04-11 | Domestic sewage purifying recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220150615 CN202688146U (en) | 2012-04-11 | 2012-04-11 | Domestic sewage purifying recycling device |
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| Publication Number | Publication Date |
|---|---|
| CN202688146U true CN202688146U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220150615 Expired - Fee Related CN202688146U (en) | 2012-04-11 | 2012-04-11 | Domestic sewage purifying recycling device |
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| Country | Link |
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| CN (1) | CN202688146U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198160A (en) * | 2015-09-25 | 2015-12-30 | 重庆淏园环保科技有限公司 | Method for treating domestic sewage by aid of complex bacteria |
| CN107265782A (en) * | 2017-08-08 | 2017-10-20 | 广西桂紫科技有限公司 | A kind of dismountable sewage disposal device |
| CN108793645A (en) * | 2018-09-04 | 2018-11-13 | 江苏梦洁尔环保科技有限公司 | Integrated domestic sewage treatment system |
| CN110407421A (en) * | 2019-09-05 | 2019-11-05 | 山东省水利科学研究院 | A kind of multichannel is suitable for formula sewage disposal system and method |
-
2012
- 2012-04-11 CN CN 201220150615 patent/CN202688146U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198160A (en) * | 2015-09-25 | 2015-12-30 | 重庆淏园环保科技有限公司 | Method for treating domestic sewage by aid of complex bacteria |
| CN107265782A (en) * | 2017-08-08 | 2017-10-20 | 广西桂紫科技有限公司 | A kind of dismountable sewage disposal device |
| CN108793645A (en) * | 2018-09-04 | 2018-11-13 | 江苏梦洁尔环保科技有限公司 | Integrated domestic sewage treatment system |
| CN110407421A (en) * | 2019-09-05 | 2019-11-05 | 山东省水利科学研究院 | A kind of multichannel is suitable for formula sewage disposal system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140411 |