CN101306894A - Process for treating waste water for car wash and equipment - Google Patents
Process for treating waste water for car wash and equipment Download PDFInfo
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- CN101306894A CN101306894A CNA2008101270924A CN200810127092A CN101306894A CN 101306894 A CN101306894 A CN 101306894A CN A2008101270924 A CNA2008101270924 A CN A2008101270924A CN 200810127092 A CN200810127092 A CN 200810127092A CN 101306894 A CN101306894 A CN 101306894A
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Abstract
The invention relates to a method for processing automobile-washing wastewater, comprising the following steps that: firstly, 100 to 120 grams of calvital is added into the wastewater for aeration treatment and mixed with the wastewater; secondly, cadmium irons and lead irons in the wastewater are converted into lead hydroxide and chromic hydroxide which are then separated and deposited; thirdly, floccule or particulate matter in the water is filtered by a filter screen; fourthly, deposited sludge in a wastewater disposal basin is collected, compressed and dehydrated to form mud cakes; fifthly, the mud cakes are burned or buried; sixthly, wastewater generated in the operations of sludge dehydration and so on can be processed by repeating the steps from the first step to the fourth step. Devices adopted for application of the method include a cleaning device, a slurry processing device, a clear water collection tank, an additional device and a high-pressure water injector. The method not only can separate heavy metal elements from the wastewater and recycles clear water after filtration but also avoids secondary pollution of heavy metal pollutant on the soil.
Description
Technical field
The present invention relates to a kind of process for treating waste water for car wash and equipment, especially a kind of method of wastewater treatment and equipment that is applied to the washing bay.
Background technology
At present, the washing bay of various scales is dispersed throughout each large, medium and small city, the whole nation, and the water consumption of carwash industry is big, all disposable in use basically discharging of employed water when cleaning automobile.Because the sewage or waste water after vehicle body and wheel clean contains a large amount of heavy metal contaminants, if these sewage discharges that contain heavy metal contaminants in farmland or other soil, will inevitably cause serious pollution to these soil and the person.For water saving, the protection environment, also imperative to the processing of wastewater from car washer.
Publication number is CN 1569673A, denomination of invention is a kind of process for treating waste water for car wash and equipment thereof, this disclosure of the Invention a kind of employing coagulating agent precipitate, carry out oil suction, adsorb, separate and use the sterilizing agent method of disinfecting with ceramic-film tube or hollow-fibre membrane with haydite with asphalt felt, wastewater from car washer is handled; This invention also discloses a kind of equipment that is applied to this method, is used for the water after handling is recycled.Though this invention can separate the materials such as oil in the waste water with waste water, guarantee the stable of effluent quality, because prior art can't be separated the heavy metal contaminants in the waste water,, pollutes heavy metal contaminants thereby being caused once more soil; Because prior art can't effectively be removed the chemical oxygen demand (COD) in the water, also reduced the transparency of water quality integral body again.
Summary of the invention
Problem to be solved by this invention provides a kind of process for treating waste water for car wash and equipment, can't be to solve prior art with heavy metal contaminants by effectively separating in the wastewater from car washer, clear water after filtering is carried out cycling and reutilization, and avoid heavy metal contaminants soil pollution problems once more.
For achieving the above object, the invention provides a kind of process for treating waste water for car wash, may further comprise the steps:
(1) in waste water, adds the calcium hydroxide of 100g-120g, and waste water is carried out aeration handle, make waste water and calcium hydroxide thorough mixing;
(2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation;
(3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered;
(4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake;
(5) mud cake is burned or landfill disposal;
(6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.
Said method comprising the steps of:
(1) in waste water, adds the calcium hydroxide of 100g, and waste water is carried out aeration handle, make waste water and calcium hydroxide thorough mixing;
(2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation;
(3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered;
(4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake;
(5) mud cake is burned or landfill disposal;
(6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.
Said method comprising the steps of:
(1) in waste water, adds the calcium hydroxide of 120g, and waste water is carried out aeration handle, make waste water and calcium hydroxide thorough mixing;
(2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation;
(3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered;
(4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake;
(5) mud cake is burned or landfill disposal;
(6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.
Said method comprising the steps of:
(1) in waste water, adds the calcium hydroxide of 110g, and waste water is carried out aeration handle, make waste water and calcium hydroxide thorough mixing;
(2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation;
(3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered;
(4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake;
(5) mud cake is burned or landfill disposal;
(6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.
The invention provides a kind of wastewater from car washer treatment facility also is provided, comprise clear water collecting tank and wastewater collection pond, also comprise washing unit, slurry processing unit, additional unit and high-pressure sprayer, described washing unit is arranged at described slurry processing unit upside, and be connected with described high-pressure sprayer, described slurry processing unit is connected with described clear water collecting tank, described high-pressure sprayer is connected with described clear water collecting tank, described additional unit respectively with described washing unit, described slurry processing unit and described high-pressure sprayer.
Described washing unit is made up of cleaning platform and water blast gun, and the both sides of described cleaning platform are ramped shaped, is made of the steel plate that has the hole seam.
Described slurry processing unit is made up of wastewater collection pond, dosing unit, sludge pump and aerator, and described sludge pump and described dosing unit are arranged at the upside and the bottom in described wastewater collection pond respectively, and described wastewater collection pond also is connected with described aerator.
Be provided with partition wall between described wastewater collection pond and the described clear water collecting tank, the height of described partition wall is lower than the high end of described two other three cement walls of collecting tank, and the uper side surface of described partition wall also is provided with filtering net.
Described additional unit comprises plate-and-frame filter press and PLC power distribution frame.
Described high-pressure sprayer comprises shower nozzle, rotary hose, water blast gun motor, and described water blast gun is connected with described water blast gun motor.
Compared with prior art, the present invention has the following advantages:
Process for treating waste water for car wash provided by the invention may further comprise the steps: (1) adds the calcium hydroxide of 100g-120g in waste water, and waste water is carried out aeration handle, and makes waste water and calcium hydroxide thorough mixing; (2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation; (3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered; (4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake; (5) mud cake is burned or landfill disposal; (6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.The equipment that adopting said method adopts comprises washing unit, slurry processing unit, clear water collecting tank, additional unit and high-pressure sprayer.The present invention can be effectively with heavy metal element by separating in the wastewater from car washer, and the clear water after will filtering carries out cycling and reutilization, the transparency that also can increase water quality has simultaneously not only reduced the excess waste that support at the water source, has also avoided the once more pollution of heavy metal contaminants to soil.
Embodiment
Embodiment 1
Adopt following method that wastewater from car washer is handled:
(1) in waste water, adds the calcium hydroxide of 100g, and waste water is carried out aeration handle, make waste water and calcium hydroxide thorough mixing;
(2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation;
(3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered;
(4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake;
(5) mud cake is burned or landfill disposal;
(6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.
Embodiment 2
Adopt following method that wastewater from car washer is handled:
(1) in waste water, adds the calcium hydroxide of 120g, and waste water is carried out aeration handle, make waste water and calcium hydroxide thorough mixing;
(2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation;
(3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered;
(4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake;
(5) mud cake is burned or landfill disposal;
(6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.
Embodiment 3
(1) in waste water, adds the calcium hydroxide of 110g, and waste water is carried out aeration handle, make waste water and calcium hydroxide thorough mixing;
(2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation;
(3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered;
(4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake;
(5) mud cake is burned or landfill disposal;
(6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.
Adopt the employed equipment of present method to constitute by washing unit, slurry processing unit, clear water collecting tank, additional unit and high-pressure sprayer five parts.Washing unit is arranged at the slurry processing unit upside, and be connected with high-pressure sprayer, slurry processing unit is connected with the clear water collecting tank, and high-pressure sprayer is connected with the clear water collecting tank, additional unit respectively with washing unit, slurry processing unit and high-pressure sprayer.
Washing unit is made of cleaning platform and water blast gun, and wherein the both sides of cleaning platform are ramped shaped, and is made of the steel plate that has the hole seam.After the automobile of needs cleaning is parked in platform, clean by the car body and the tire of water blast gun automobile, waste water flows into its downside muddy water disposal plant by the hole seam of platform surface.The muddy water disposal plant is made up of wastewater collection pond, dosing unit, sludge pump and aerator, and sludge pump and dosing unit are arranged at the upside and the bottom in wastewater collection pond respectively, and the wastewater collection pond also is connected with aerator.Additional unit comprises plate-and-frame filter press and PLC power distribution cabinet, this PLC power distribution cabinet is connected with equipment such as dosing unit, sludge pump, aerator, plate-and-frame filter press by electric wire, and electric energy is provided during for those equipment operations, can also play electricinterference and the effect that prevents to shock by electricity of suppressing to these equipment simultaneously.High-pressure sprayer mainly comprises shower nozzle, rotary hose, water blast gun motor, and this water blast gun motor also is connected with water blast gun.
Hydromining after handling in the wastewater collection pond injects the clear water collecting tank with the overflow mode.The overflow mode is meant between wastewater collection pond and clear water collecting tank and is provided with partition wall, and the height of this partition wall is lower than the high end of two other three cement walls of collecting tank, and the uper side surface of partition wall also is provided with filtering net.When the height of the water after the processing in the wastewater collection pond was higher than the height of partition wall, water will inject the clear water collecting tank inside of its opposite side by partition wall.When current inject, current filter by the highdensity filtering net of partition wall uper side surface, stagnate and be parked in wastewater collection pond one side thereby make floss that is suspension in the current or particulate matter be filtered net, the clear water after filtering by filtering net then flows into clear water and receives and wait in the pond and being recycled once more.Because high-pressure sprayer is connected with the clear water collecting tank, and the water blast gun motor in the high-pressure sprayer is connected with water blast gun in the washing unit, thereby the clear water after also having realized filtering carries out the purpose of cycling and reutilization.Because the clear water in the clear water collecting tank has not had to be the floss or the particulate matter of suspension, when having reduced water blast gun consumption, the work-ing life of also having improved water blast gun.
Sedimentary mud all carries out once unified collection of concentrating every day by sludge pump in the wastewater collection pond, and processing such as the mud of plate-and-frame filter press after will unifying to collect compresses, dehydration, thereby make mud form mud cake, and deliver to and burn outside the venue or landfill disposal.After compressed, the processed, the waste water of Cheng Sheng in the mud is injected medium pending purification in wastewater collection pond and filtration again again.
The principle of work of present device is: by water blast gun cleaning platform is got on the car and clean, cleaning back sewage flows in the wastewater collection pond of its downside, dosing unit by wastewater collection pond upside places the calcium hydroxide of doses to the pond, and chemical agent is mixed fully with sewage by small-sized pressure aerator, calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, it is separated postprecipitation, lead hydroxide after the separation and chromium hydroxide form floss or the particulate matter that is suspension, and the mud in the sewage or waste water then is precipitated to the bottom, pond and carries out unified collection by sludge pump.After the waste water in the wastewater collection pond reach a certain height, the just filtering net at the top by the division plate in wastewater collection pond and the clear water collecting tank, overflow is to clear water collecting tank inside.In flooding process, the filtering net at division plate top filters the floss or the particulate matter that suspend in the water, has farthest reduced the foreign matter of clear water, when having reduced water blast gun consumption, and the work-ing life of also having improved water blast gun.Because water blast gun is connected with the clear water collecting tank by water blast gun motor and transfer tube, thus the cycling and reutilization of clear water after having realized filtering.
Processing such as plate-and-frame filter press will compress through the mud after the unified collection of sludge pump, dehydration, thereby make mud form mud cake, and send mud cake outside the venue to burning or landfill disposal, owing to do not had heavy metal element in the mud, also avoid again soil being produced situation about polluting and take place.After compressed, the processed, the waste water of Cheng Sheng in the mud is injected the wastewater collection pond again again, and etc. pending purification and filtration treatment, thereby reach the purpose of cycling and reutilization.
In sum, the present invention can be effectively with heavy metal element by separating in the wastewater from car washer, and the waste water after will filtering carries out cycling and reutilization, also can effectively remove simultaneously the chemical oxygen demand (COD) in the water, improve the transparency of water, not only reduced the excess waste of water source money, also avoided the once more pollution of heavy metal contaminants soil.
Only the above person only is preferred embodiment of the present invention, is familiar with the professional person of this skill such as.After understanding technique means of the present invention, natural energy is changed under instruction of the present invention according to the needs of reality.Therefore all equal variation and modifications of being done according to the present patent application claim once should still belong in the scope that patent of the present invention contains.
Claims (10)
1, a kind of process for treating waste water for car wash is characterized in that, may further comprise the steps:
(1) in waste water, adds the calcium hydroxide of 100g-120g, and waste water is carried out aeration handle, make waste water and calcium hydroxide thorough mixing;
(2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation;
(3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered;
(4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake;
(5) mud cake is burned or landfill disposal;
(6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.
2, a kind of process for treating waste water for car wash as claimed in claim 1 is characterized in that, said method comprising the steps of:
(1) in waste water, adds the calcium hydroxide of 100g, and waste water is carried out aeration handle, make waste water and calcium hydroxide thorough mixing;
(2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation;
(3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered;
(4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake;
(5) mud cake is burned or landfill disposal;
(6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.
3, a kind of process for treating waste water for car wash as claimed in claim 1 is characterized in that, said method comprising the steps of:
(1) in waste water, adds the calcium hydroxide of 120g, and waste water is carried out aeration handle, make waste water and calcium hydroxide thorough mixing;
(2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation;
(3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered;
(4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake;
(5) mud cake is burned or landfill disposal;
(6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.
4, a kind of process for treating waste water for car wash as claimed in claim 1 is characterized in that, said method comprising the steps of:
(1) in waste water, adds the calcium hydroxide of 110g, and waste water is carried out aeration handle, make waste water and calcium hydroxide thorough mixing;
(2) calcium hydroxide changes into lead hydroxide and the chromium hydroxide that is insoluble in water with cadmium ion in the waste water and lead ion, and it is separated postprecipitation;
(3) by filtering net to be suspension in the water, less floss or the particulate matter of volume filtered;
(4) sedimentary mud in the wastewater disposal basin is collected, compression, processed, thereby form mud cake;
(5) mud cake is burned or landfill disposal;
(6) step that can be repeated in (1)-(4) by the waste water that is produced in the operations such as sludge dewatering is handled.
5, a kind of wastewater from car washer treatment facility, comprise clear water collecting tank and wastewater collection pond, it is characterized in that, also comprise washing unit, slurry processing unit, additional unit and high-pressure sprayer, described washing unit is arranged at described slurry processing unit upside, and be connected with described high-pressure sprayer, described slurry processing unit is connected with described clear water collecting tank, described high-pressure sprayer is connected with described clear water collecting tank, described additional unit respectively with described washing unit, described slurry processing unit and described high-pressure sprayer.
6, a kind of wastewater from car washer treatment facility as claimed in claim 5 is characterized in that described washing unit is made up of cleaning platform and water blast gun, and the both sides of described cleaning platform are ramped shaped, is made of the steel plate that has the hole seam.
7, a kind of wastewater from car washer treatment facility as claimed in claim 5, it is characterized in that, described slurry processing unit is made up of dosing unit, sludge pump and aerator, described sludge pump and described dosing unit are arranged at the upside and the bottom in described wastewater collection pond respectively, and described wastewater collection pond also is connected with described aerator.
8, a kind of wastewater from car washer treatment facility as claimed in claim 5, it is characterized in that, be provided with partition wall between described wastewater collection pond and the described clear water collecting tank, the height of described partition wall is lower than the high end of described two other three cement walls of collecting tank, and the uper side surface of described partition wall also is provided with filtering net.
9, a kind of wastewater from car washer treatment facility as claimed in claim 5 is characterized in that, described additional unit comprises plate-and-frame filter press and PLC power distribution frame.
10, a kind of wastewater from car washer treatment facility as claimed in claim 5 is characterized in that, described high-pressure sprayer comprises shower nozzle, rotary hose, water blast gun motor, and described water blast gun motor is connected with described water blast gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101270924A CN101306894A (en) | 2008-06-25 | 2008-06-25 | Process for treating waste water for car wash and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101270924A CN101306894A (en) | 2008-06-25 | 2008-06-25 | Process for treating waste water for car wash and equipment |
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| CN101306894A true CN101306894A (en) | 2008-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101270924A Pending CN101306894A (en) | 2008-06-25 | 2008-06-25 | Process for treating waste water for car wash and equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106316048A (en) * | 2016-10-09 | 2017-01-11 | 广州市丹爵通讯科技有限公司 | Removable sludge treatment filter pressing system for city life field |
| CN109293043A (en) * | 2018-09-28 | 2019-02-01 | 河海大学 | A kind of Minitype manual wastewater from car washer classification processing reclamation set |
| CN114477416A (en) * | 2022-02-18 | 2022-05-13 | 中山大学 | Advanced oxidation treatment method for town sewage |
-
2008
- 2008-06-25 CN CNA2008101270924A patent/CN101306894A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106316048A (en) * | 2016-10-09 | 2017-01-11 | 广州市丹爵通讯科技有限公司 | Removable sludge treatment filter pressing system for city life field |
| CN109293043A (en) * | 2018-09-28 | 2019-02-01 | 河海大学 | A kind of Minitype manual wastewater from car washer classification processing reclamation set |
| CN114477416A (en) * | 2022-02-18 | 2022-05-13 | 中山大学 | Advanced oxidation treatment method for town sewage |
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Open date: 20081119 |