CN101279806A - Recycling use method and apparatus for wastewater of carwash and laundry - Google Patents
Recycling use method and apparatus for wastewater of carwash and laundry Download PDFInfo
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- CN101279806A CN101279806A CNA2008100249983A CN200810024998A CN101279806A CN 101279806 A CN101279806 A CN 101279806A CN A2008100249983 A CNA2008100249983 A CN A2008100249983A CN 200810024998 A CN200810024998 A CN 200810024998A CN 101279806 A CN101279806 A CN 101279806A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The invention is a car and clothes washing wastewater recycling treatment method and a device, which relates to the method and the device that can treat high turbidity clothes and car washing wastewater into clean tap water (the water quality can reach the national standard of purified water) and recycle the water. The invention is particularly suitable for units and individuals needing volumes of water in large clothes-washing and car-cleaning factories and hotel washhouses. The car and clothes washing wastewater recycling treatment method (1) treats the high turbidity wastewater into clear water: impurities such as sediment, oil dirt, human scurf, hair and fiber and bacteria are removed through flocculating settling and filtration treatment by a ceramic membrane filter; (2) the clear water containing detergent is purified; and the wastewater undergoes the reverse osmosis treatment in a reverse osmosis device and becomes the purified water through the filtration in an active carbon filter. The device includes a flocculation sedimentation tank, a filter head, a lift pump, a raw water storage tank, a delivery pump, a booster pump, a special type membrane filter, an active carbon tank, a flow meter, an ultraviolet sterilizing device and the reverse osmosis device.
Description
Technical field
What carwash of the present invention and laundrywastes recycled that treatment process and equipment thereof relates to is a kind of tap water (water quality can reach national pure water standard) that the laundry and the wastewater from car washer of high turbidity can be treated as cleaning and a kind of method and the equipment thereof that recycles.Be specially adapted to the entity and individual of a large amount of waters of needs such as large-scale laundry carwash factory and laundry, hotel.
Background technology
World today's water resources is in short supply day by day. and be World Water Day annual March 22, and our country is national water week on annual 1-July 7 July, strengthens saving and protection, realizes that sustainable utilization of water resources is to be worth the problem of exploration forever.Along with water rate every year in each city of China all in continuous growth.How could save the water source, to save the spending of production and operation simultaneously, be that pendulum is in every day a large amount of water units and individual's problem that urgency is to be solved in front.Year water consumption according to a small-sized laundry factory is as follows: 20 tons of/hour x8 hour (working hours) x300 days=48000 tons, these water are taken as sewage and directly are discharged into sewage work.If discharge water of enormous amount so is can be in the processed recovery of water unit, the words of Li Yonging once more, not only can save a large amount of production costs, minimizing is to the waste of water resources, and can alleviate the burden of national sewage disposal, is a great undertaking of benefiting the nation and the people.
Summary of the invention
The present invention seeks to provides a kind of carwash and laundrywastes to recycle treatment process and equipment thereof at above-mentioned weak point, is tap water (water quality can reach national pure water standard) that the laundry and the wastewater from car washer of high turbidity can be treated as cleaning and a kind of method and the equipment thereof that recycles.
Waste water reclamation rate height of the present invention, really reached the purpose that recirculated water equipment recycles, as clear as crystal, the colorless and odorless of circulating water quality after the processing, disposable water filling can recycle for a long time, operation and maintenance cost is low, adopt the double pump series connection method, energy consumption is little, and occupation area of equipment is little, need not civil engineering, equipment is with to usefulness.
Carwash and laundrywastes recycle treatment process and equipment takes following scheme to realize:
Carwash and laundrywastes recycle treatment process:
1, high-turbidity water is treated as water purification:
(A) required laundry to be processed or wastewater from car washer are focused in the very big flocculation sedimentation tank 1, on the limit of flocculation sedimentation tank 1, lift pump are installed, and the import at lift pump is equipped with filtering head, and sinks in the flocculation sedimentation tank.Laundry or wastewater from car washer filter through filtering head, impurity such as preliminary filtering silt, grease, human body scurf, hair, fiber will be evacuated in the former water storage tank 4 through preliminary filtering laundry or wastewater from car washer by lift pump, in former water storage tank, add flocculation agent, carry out flocculation sediment.High-turbidity water is treated as water purification, but still remains with washing composition in this water purification.Flocculation agent can adopt polymerize aluminum chloride etc.
(B) cooperate via transferpump and topping-up pump, the water-in of transferpump is connected with former water storage tank, water outlet docks with the water-in of topping-up pump, unite hydraulic pressure is promoted to 3.5-4kg, waste water after the flocculation is squeezed into the ceramic membrane filter device, can be by ceramic membrane filter device filtration treatment with impurity and removal of bacteria such as silt, grease, human body scurf, hair, fibers, the turbidity of water can be reduced to 0.1～1NTU, but still remain with washing composition in this water purification, this portion water can be used for once more cleaning clothes and automobile.
The ceramic membrane filter device adopts some groups of ceramic membrane filter devices to be assembled into, and in the ceramic membrane filter device ceramic filter membrane is housed.The topping-up pump here can adopt 2 parallel connections, and purpose is to be used alternatingly in 12 hours, is unlikely to motor overheating and causes coil burnout.In addition, characteristics of the present invention also are the series connection of transferpump and topping-up pump, these 2 pumps, one is the big lift of low discharge, one is the little lift of big flow, obtains a total flux and total (pumping) head after the series connection, this power consumption with compare with the separate unit topping-up pump less a lot.Also can be with using the transferpump of a pump separately as turbidity water.
2, the water purifying purifying that contains washing composition:
(A) after waste water is handled through the ceramic membrane filter device, be divided into water purification and dense water two portions, dense water directly is discharged into water drain through pipeline.Behind the on-line determination flow of water purification through the net water flux table, be imported in the activated charcoal filter, activated charcoal filter can effectively be dispeled the peculiar smell in partial organic substances and the water.Then, water is continuously introduced in the ultraviolet sterilization apparatus, and the bacterium in the water can be effectively killed in the ultraviolet ray that the ultraviolet germicidal lamp in ultraviolet sterilization apparatus produces, thereby reduces the bacterium index in the water, for next step reverse osmosis purifying is got ready.Behind water process ultraviolet sterilization apparatus, be stored in the storage tank of purifying waste water, wait for that the water purification transferpump is input to its pressurization in the reverse osmosis unit, become water purification after this stage wastewater treatment, but still remain with washing composition in this water purification, water quality is alkalescence;
(B) adopted the pH value adjusting device, the water purification water quality regulation in the storage tank of purifying waste water is become neutrality after, the route transferpump of purifying waste water is transported to laundry or auto wash shop, carries out the initial clean of clothing or automobile; Another road directly enters reverse osmosis unit, and through the reverse osmosis unit reverse osmosis of pressurizeing, washing composition is effectively dispeled, and becomes purified water, is transported to final cleaning point by transferpump, is used for clothing or automobile are carried out last rinsing or flushing.
Above-mentioned carwash and laundrywastes recycle in the treatment process claimed range to former water temp: 0-90 ℃.
Carwash and laundrywastes recycle treatment facility and comprise flocculation sedimentation tank, filtering head, lift pump, former water storage tank, transferpump, topping-up pump, special membrane strainer, charcoal canister, rate of flow meter, ultraviolet sterilization apparatus, reverse osmosis unit.
On the limit of flocculation sedimentation tank, lift pump is installed, the import at lift pump is equipped with filtering head, and sinks in the flocculation sedimentation tank.The lift pump outlet is joined with former water storage tank, transferpump and topping-up pump are in series, and the transferpump import is connected with former water storage, and the topping-up pump outlet is connected with the ceramic membrane filter device, the ceramic membrane filter device adopts some groups of ceramic membrane filter devices to be assembled into, and in the ceramic membrane filter device ceramic filter membrane is housed.The topping-up pump here can adopt 2 to be connected in parallel.The ceramic membrane filter device is communicated with by pipeline with activated charcoal filter, in ceramic membrane filter device and activated charcoal filter connecting tube the net water flux table is housed.The activated charcoal filter water outlet is equipped with ultraviolet sterilization apparatus, the storage tank water-in of purifying waste water is connected with the ultraviolet sterilization apparatus water outlet, ultraviolet germicidal lamp is housed in the ultraviolet sterilization apparatus, purify waste water and the pH value adjusting device is housed on the storage tank, purify waste water and float switch is housed in the storage tank, the transferpump water-in of purifying waste water communicates with the storage tank of purifying waste water; The transferpump water outlet one tunnel of purifying waste water links to each other with reverse osmosis unit, and another road is connected with laundry or auto wash shop; The purified water transferpump is equipped with in the reverse osmosis unit outlet.
The ceramic membrane filter device is provided with back-purge system and is made up of a backwashing pump and a back flushing water tank.
Because the visible in the laundry wastewater from car washer is a lot, comprise impurity such as silt, human body scurf, hair, fiber, need in advance it to be handled, adopt filtering head here, it can filter out a part of impurity, alleviates the road, back and filters burden.Then adopt flocculation agent, it can be convenient to impurity cluster waddingization, the granulating in the water back one step ceramic membrane filter device filtration and dispel.Water is divided into water purification and dense water two portions after handling through the ceramic membrane filter device, and water purification enters activated charcoal filter after surveying accurately real-time traffic through online rate of flow meter, and it can effectively dispel smell and partial organic substances in purifying waste water.Owing to contain the bacterium of part in the water purification after handling, so behind activated charcoal filter, be provided with the ultra-violet sterilization system.Can effectively reduce the bacteria content in purifying waste water, for next step reverse osmosis purifying is got ready.After water is through the ultra-violet sterilization system, be stored in the water tank of a health level, wait for that high-pressure pump is input to its pressurization in the reverse osmosis system, be processed into water purification through this stage laundrywastes, but still remain with washing composition in this water purification, water quality is alkalescence, here the present invention has adopted the pH value adjusting device, after water quality regulation become neutrality, be transported to laundry or auto wash shop, carry out the initial clean of clothing or automobile by transferpump.The present invention is directed to the ceramic membrane filter device, disposed a cover back-purge system, because ceramic membrane is after work for some time, the surface can be covered fouling by viscous substance in the water, stops up fenestra, causes water production rate to descend inefficiency.Back-purge system is made up of a backwashing pump and a back flushing water tank, by PLC system control backwashing time and pitch time, is used for the surface of ceramic membrane is washed prolongs life and increasing work efficiency.
The core of reverse osmosis system is reverse osmosis membrane (REVERSE OSMOSISMEMBRANE), and it is a kind of semi-permeable membranes, by artificial chemosynthesis.The mean gap of film is about the 0.0001u=10 dust, just and the water molecules diameter comparable.So water molecules can see through film under pressure and arrive another side, most of metals and compound diameter can't see through greater than the gap of film, are about 0.02u-0.4u as for its diameter of virus, the bacterium diameter is about 0.4u-1u, so more can't see through fenestra.For obstruction and the damage that prevents film, above-mentioned filtering system all is effectively to dispel mud in the water, sand, iron filings, fiber, organic compound.Water purification is through behind the reverse osmosis system, and washing composition is effectively dispeled, and becomes purified water, is transported to final laundry or auto wash shop by transferpump, is used for to clothing or carries out last rinsing and flushing.
Carwash and laundrywastes recycle treatment process and equipment design is reasonable, and compact construction is easy to install.The following 1. waste water reclamation rate height of characteristics of the present invention can reach 85%-95%, have really reached the purpose that recirculated water equipment recycles; 2. as clear as crystal, the colorless and odorless of circulating water quality after handling, disposable water filling can recycle for a long time; 3. operation and maintenance cost is low, adopts the double pump series connection method, and little 4. occupation area of equipment of energy consumption are little, need not civil engineering, and equipment is with to usefulness.
Description of drawings
The invention will be further described below with reference to accompanying drawing.
Fig. 1 is the schema that carwash and laundrywastes recycle treatment facility.
Embodiment
With reference to accompanying drawing 1, carwash and laundrywastes recycle treatment facility and comprise flocculation sedimentation tank 1, filtering head 2, lift pump 3, former water storage tank 4, transferpump 5, topping-up pump 6, special membrane strainer 8, charcoal canister 10, net water flux table 9, ultraviolet sterilization apparatus 11, reverse osmosis unit 17.
On the limit of flocculation sedimentation tank 1, lift pump 3 is installed, in the import of lift pump 3, filtering head 2 is installed, and sinks in the flocculation sedimentation tank 1.Lift pump 3 outlets are joined with former water storage tank 4, transferpump 5 is in series with topping-up pump 6, transferpump 5 imports are connected with former water storage 4, topping-up pump 6 outlets are connected with ceramic membrane filter device 8, ceramic membrane filter device 8 adopts some groups of ceramic membrane filter devices to be assembled into, and in the ceramic membrane filter device 8 ceramic filter membrane is housed.The topping-up pump here can adopt 2 to be connected in parallel.Ceramic membrane filter device 8 and activated charcoal filter 10 are communicated with by pipeline, in ceramic membrane filter device 8 and activated charcoal filter 10 connecting tubes net water flux table 9 are housed.Activated charcoal filter 10 water outlets are equipped with ultraviolet sterilization apparatus 11, storage tank 14 water-ins of purifying waste water are connected with ultraviolet sterilization apparatus 11 water outlets, in the ultraviolet sterilization apparatus 11 ultraviolet germicidal lamp is housed, purify waste water and pH value adjusting device 13 is housed on the storage tank 14, purify waste water and float switch 15 is housed in the storage tank 14, transferpump 16 water-ins of purifying waste water communicate with the storage tank 14 of purifying waste water; Transferpump 16 water outlets one tunnel of purifying waste water link to each other with reverse osmosis unit, and another road is connected with laundry or auto wash shop 20; The purified water transferpump is equipped with in the reverse osmosis unit outlet.
Ceramic membrane filter device 8 is provided with back-purge system and is made up of a backwashing pump 18 and a back flushing water tank 19.
With reference to accompanying drawing 1, carwash and laundrywastes recycle treatment process and are achieved in that
(1), high-turbidity water is treated as water purification:
(1) required laundry to be processed or wastewater from car washer are focused in the very big flocculation sedimentation tank 1, on the limit of flocculation sedimentation tank 1, lift pump 3 are installed, and in the import of lift pump 3, filtering head 2 are installed, and sink in the flocculation sedimentation tank 1.Laundry or wastewater from car washer filter through filtering head 2, impurity such as preliminary filtering silt, grease, human body scurf, hair, fiber will be evacuated in the former water storage tank 4 through preliminary filtering laundry or wastewater from car washer by lift pump 3, in former water storage tank 4, add flocculation agent, carry out flocculation sediment.High-turbidity water is treated as water purification, but still remains with washing composition in this water purification.Flocculation agent can adopt polymerize aluminum chloride etc.
(2) water-in of transferpump 5 is connected with former water storage tank 4, and the water outlet of transferpump 5 docks with the water-in of topping-up pump 6, unites hydraulic pressure is promoted to 3.5-4kg, squeezes into and carries out filtration treatment in the ceramic membrane filter device 8.Ceramic membrane filter device 8 adopts some groups of ceramic membrane filter devices to be assembled into, and in the ceramic membrane filter device 8 ceramic filter membrane is housed.The topping-up pump 5 here can adopt 2 parallel connections, and purpose is to be used alternatingly in 12 hours, is unlikely to motor overheating and causes coil burnout.In addition, the characteristics of native system also are the series connection of transferpump and topping-up pump, these 2 pumps, one is the big lift of low discharge, one is the little lift of big flow, obtains a total flux and total (pumping) head after the series connection, this power consumption with compare with the separate unit topping-up pump less a lot.Also can be with using the transferpump of a pump separately as turbidity water.The water outlet of transferpump 5 is equipped with pressure 7, is convenient to measure hydraulic pressure.
(2), the water purifying purifying that contains washing composition:
(1) after waste water is handled through ceramic membrane filter device 8, be divided into water purification and dense water two portions, dense water directly is discharged into water drain through pipeline.On the dense water transport pipe concentrated stream scale 12 is housed.Behind the on-line determination flow of water purification through net water flux table 9, be imported in the activated charcoal filter 10, activated charcoal filter 10 can effectively be dispeled the peculiar smell in partial organic substances and the water.Then, water is continuously introduced in the ultraviolet sterilization apparatus 11, and the bacterium in the water can be effectively killed in the ultraviolet ray that the ultraviolet germicidal lamp in ultraviolet sterilization apparatus 11 produces, thereby the bacterium index in the reduction water is for next step reverse osmosis purifying is got ready.Behind water process ultraviolet sterilization apparatus 11, be stored in the storage tank 14 of purifying waste water, wait for and carry 16 pumps that its pressurization is input in the reverse osmosis unit 17 that become water purification after this stage wastewater treatment, but still remain with washing composition in this water purification, water quality is alkalescence;
(2) adopted pH value adjusting device 13, the water purification water quality regulation in the storage tank 14 of purifying waste water is become neutrality after, a route transferpump 16 is transported to laundry or auto wash shop 1, carries out the initial clean of clothing or automobile; One the tunnel directly enters reverse osmosis unit 17, and through reverse osmosis unit 17 reverse osmosis of pressurizeing, washing composition is effectively dispeled, and becomes purified water, is transported to final cleaning point by the purified water transferpump, is used for clothing or automobile are carried out last rinsing or flushing.
Activated charcoal filter 10 can adopt commercially available activated charcoal filter.
Described pH value adjusting device 13 comprises volume pump, pH value probe, pH value conditioning agent, medicinal liquor barrel, and pH value conditioning agent is housed in the medicinal liquor barrel, and volume pump is housed on the medicinal liquor barrel, and pH value probe is contained in the storage tank of purifying waste water.PH value conditioning agent can adopt acid regulator, and acid regulator can adopt dilute hydrochloric acid etc.
The present invention is directed to ceramic membrane filter device 8, disposed a cover back-purge system, because special membrane is after work for some time, the surface can be covered fouling by viscous substance in the water, stops up fenestra, causes water production rate to descend inefficiency.Back-purge system is made up of a backwashing pump 18 and a back flushing water tank 19, by the PLC Controlling System backwashing time and pitch time is set, and is used for the surface of ceramic membrane is washed prolongs life and increasing work efficiency.
The core of reverse osmosis unit 17 is reverse osmosis membrane (REVERSE OSMOSIS MEMBRANE), and it is a kind of semi-permeable membranes, by artificial chemosynthesis.The mean gap of film is about the 0.0001u=10 dust, just and the water molecules diameter comparable.So water molecules can see through film under pressure and arrive another side, most of metals and compound diameter can't see through greater than the gap of film, are about 0.02u-0.4u as for its diameter of virus, the bacterium diameter is about 0.4u-1u, so more can't see through fenestra.For obstruction and the damage that prevents film, above-mentioned strainer all is effectively to dispel mud in the water, sand, iron filings, fiber, organic compound.Water purification is through behind the reverse osmosis unit 17, and washing composition is effectively dispeled, and becomes purified water, is transported to final cleaning point by transferpump, is used for clothing or automobile are carried out last rinsing or flushing.
Claims (8)
1, a kind of carwash and laundrywastes recycle treatment process, it is characterized in that
(1) high-turbidity water is treated as water purification:
(A) required laundry to be processed or wastewater from car washer are focused in the very big flocculation sedimentation tank, on the limit of flocculation sedimentation tank, lift pump is installed, import at lift pump, filtering head is installed, and sink in the flocculation sedimentation tank, laundry or wastewater from car washer filter through filtering head, preliminary filtering silt, grease, the human body scurf, hair, impurity such as fiber will be evacuated in the former water storage tank through preliminary filtering laundry or wastewater from car washer by lift pump, in former water storage tank, add flocculation agent, carry out flocculation sediment, high-turbidity water is treated as water purification, but still remain with washing composition in this water purification;
(B) cooperate via transferpump and topping-up pump, the water-in of transferpump is connected with former water storage tank, water outlet docks with the water-in of topping-up pump, unite hydraulic pressure is promoted to 3.5-4kg, waste water after the flocculation is squeezed into the ceramic membrane filter device, and with impurity and removal of bacteria such as silt, grease, human body scurf, hair, fibers, the turbidity of water can be reduced to 0.1～1NTU by ceramic membrane filter device filtration treatment, but still remain with washing composition in this water purification, this portion water can be used for once more cleaning clothes and automobile;
(2) contain the water purifying purifying of washing composition:
(A) after waste water is handled through the ceramic membrane filter device, be divided into water purification and dense water two portions, dense water directly is discharged into water drain through pipeline, behind the on-line determination flow of water purification through the net water flux table, be imported in the activated charcoal filter, activated charcoal filter is effectively dispeled the peculiar smell in partial organic substances and the water; Then, water is continuously introduced in the ultraviolet sterilization apparatus, and the bacterium in the water is effectively killed in the ultraviolet ray that the ultraviolet germicidal lamp in ultraviolet sterilization apparatus produces, thereby reduces the bacterium index in the water, for next step reverse osmosis purifying is got ready; Behind water process ultraviolet sterilization apparatus, be stored in the storage tank of purifying waste water, wait for that the water purification transferpump is input to its pressurization in the reverse osmosis unit, become water purification after this stage wastewater treatment, but still remain with washing composition in this water purification, water quality is alkalescence;
(B) adopt the pH value adjusting device, adopt acid regulator to purify waste water after water purification water quality regulation in the storage tank becomes neutrality, the route transferpump of purifying waste water is transported to laundry or auto wash shop, carries out the initial clean of clothing or automobile; Another road directly enters reverse osmosis unit, and through the reverse osmosis unit reverse osmosis of pressurizeing, washing composition is effectively dispeled, and becomes purified water, is transported to final cleaning point by transferpump, is used for clothing or automobile are carried out last rinsing or flushing.
2, carwash according to claim 1 and laundrywastes recycle treatment process, it is characterized in that described flocculation agent can adopt polymerize aluminum chloride.
3, carwash according to claim 1 and laundrywastes recycle treatment process, it is characterized in that described acid regulator adopts dilute hydrochloric acid.
4, a kind of carwash and laundrywastes recycle treatment facility, it is characterized in that comprising flocculation sedimentation tank, filtering head, lift pump, former water storage tank, transferpump, topping-up pump, special membrane strainer, charcoal canister, rate of flow meter, ultraviolet sterilization apparatus, reverse osmosis unit;
On the limit of flocculation sedimentation tank, lift pump is installed, import at lift pump is equipped with filtering head, and sink in the flocculation sedimentation tank, the lift pump outlet is joined with former water storage tank, and transferpump and topping-up pump are in series, the transferpump import is connected with former water storage, the topping-up pump outlet is connected with the ceramic membrane filter device, and the ceramic membrane filter device is communicated with by pipeline with activated charcoal filter, in ceramic membrane filter device and activated charcoal filter connecting tube the net water flux table is housed; The activated charcoal filter water outlet is equipped with ultraviolet sterilization apparatus, the storage tank water-in of purifying waste water is connected with the ultraviolet sterilization apparatus water outlet, ultraviolet germicidal lamp is housed in the ultraviolet sterilization apparatus, purify waste water and the pH value adjusting device is housed on the storage tank, purify waste water and float switch is housed in the storage tank, the transferpump water-in of purifying waste water communicates with the storage tank of purifying waste water; The transferpump water outlet one tunnel of purifying waste water links to each other with reverse osmosis unit, and another road is connected with laundry or auto wash shop; The purified water transferpump is equipped with in the reverse osmosis unit outlet.
5, carwash according to claim 4 and laundrywastes recycle treatment facility, it is characterized in that described ceramic membrane filter device is provided with back-purge system and is made up of a backwashing pump and a back flushing water tank.
6, carwash according to claim 4 and laundrywastes recycle treatment facility, it is characterized in that described ceramic membrane filter device adopts some groups of ceramic membrane filter devices to be assembled into, and is equipped with ceramic filter membrane in the ceramic membrane filter device.
7, carwash according to claim 4 and laundrywastes recycle treatment facility, it is characterized in that described topping-up pump adopts two and is connected in parallel.
8, carwash according to claim 4 and laundrywastes recycle treatment facility, it is characterized in that described pH value adjusting device comprises volume pump, pH value probe, pH value conditioning agent, medicinal liquor barrel, pH value conditioning agent is housed in the medicinal liquor barrel, volume pump is housed on the medicinal liquor barrel, and pH value probe is contained in the storage tank of purifying waste water.
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| CN2008100249983A CN101279806B (en) | 2008-05-22 | 2008-05-22 | Recycling use method and apparatus for wastewater of carwash and laundry |
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| CN2008100249983A CN101279806B (en) | 2008-05-22 | 2008-05-22 | Recycling use method and apparatus for wastewater of carwash and laundry |
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| CN101279806B CN101279806B (en) | 2010-04-14 |
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Assignee: Nanjing H&C Water Treatment Equipment Co., Ltd. Assignor: Wu Zicheng Contract record no.: 2011320000605 Denomination of invention: Recycling use method and apparatus for wastewater of carwash and laundry Granted publication date: 20100414 License type: Exclusive License Open date: 20081008 Record date: 20110419 |