CN110386690A - A kind of spraying pre-treatment Wastewater zero-discharge treatment system - Google Patents
A kind of spraying pre-treatment Wastewater zero-discharge treatment system Download PDFInfo
- Publication number
- CN110386690A CN110386690A CN201910653777.0A CN201910653777A CN110386690A CN 110386690 A CN110386690 A CN 110386690A CN 201910653777 A CN201910653777 A CN 201910653777A CN 110386690 A CN110386690 A CN 110386690A
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- Prior art keywords
- acid
- base neutralization
- unit
- process unit
- raw water
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a kind of spraying pre-treatment Wastewater zero-discharge treatment systems, and spraying pre-treatment Wastewater zero-discharge treatment system includes raw water lift unit, acid-base neutralization unit, air-flotation process unit, evaporation process unit, centrifugal dehydration unit.Acid-base neutralization unit carries out acid-base neutralization to waste water, and air flotation cell goes oil removing and removes oil removal, and evaporation process unit is evaporated concentration, the recycling condensing water of generation to waste water.The advantages that process equipment stable and reliable operation, high degree of automation, simple operation and maintenance.
Description
Technical field
The present invention relates to technical field of waste water processing, specially a kind of spraying pre-treatment Wastewater zero-discharge treatment system.
Background technique
The waste water generated in spraying process production handles waste water, electrophoretic coating waste water and painting wastewater before mainly dividing.Before
The processes such as degreasing, phosphatization surface of the waste water from paint front surface processing are handled, oil emulsion, surfactant, phosphate, again are contained
Metal ion filler, solvent etc..Pre-treatment waste water is sprayed with water is big, complicated component is changeable, coloration is big, COD high, toxicity
The features such as strong, belongs to one of intractable industrial wastewater, such as directlys adopt biochemical method such as anaerobism (hydrolysis acidification), aerobic pair
It is handled, and a problem that activated sludge is suppressed, biochemical system paralysis is collapsed and existing waste water can occur often
Treatment process can only be up to standard by the processing of the indexs such as COD, BOD, ammonia nitrogen, and the salinity in water not can be removed.
Therefore, it is badly in need of a kind of spraying pre-treatment waste water zero discharge treatment process, to solve existing wastewater processing technology application
The problem of.
Summary of the invention
To solve the above problems, realizing spraying the invention discloses a kind of spraying pre-treatment Wastewater zero-discharge treatment system
The zero-emission of the pre-treatment waste water and condensed water evaporated can recycle.
In order to reach the goals above, the invention provides the following technical scheme:
A kind of spraying pre-treatment Wastewater zero-discharge treatment system, including raw water lift unit, acid-base neutralization unit, air-flotation process list
Member, evaporation process unit, centrifugal dehydration unit, the raw water lift unit connect acid-base neutralization unit, the acid by elevator pump
Alkali neutralization unit connects air-flotation process unit, and the air-flotation process unit connects evaporation process unit；The acid-base neutralization unit,
Air-flotation process unit, evaporation process unit are all connected with centrifugal dehydration unit.
Further, the raw water lift unit includes raw water box, and the acid-base neutralization unit includes acid-base neutralization pond, institute
Stating air-flotation process unit includes flotation tank, and the evaporation process unit includes MVR vapo(u)rization system, and the centrifugal dehydration unit includes
Centrifugal dehydrator.
Further, the raw water box connects acid-base neutralization pond by elevator pump, and the supernatant in the acid-base neutralization pond goes out
Mouth connection flotation tank, the sediment outlet connection centrifugal dehydrator in the acid-base neutralization pond；Flotation tank connection MVR evaporation system
System, the acid-base neutralization pond, flotation tank, MVR vapo(u)rization system connect centrifugal dehydrator.
Further, it is described spraying pre-treatment Wastewater zero-discharge treatment system processing method the following steps are included:
The first step, the case connect acid-base neutralization pond by raw water elevator pump, acid-base neutralization are carried out in acid-base neutralization pond；
Second step, the supernatant in the acid-base neutralization pond enter flotation tank, carry out oil removing and suspended matter processing；
Third step, treated, and supernatant enters MVR vapo(u)rization system is evaporated, the condensation water recovery and use evaporated；
4th step, the crystal after the sediment of neutralization pond, the dross of flotation tank and the evaporation of MVR vapo(u)rization system enter centrifugal dehydrator
It is dehydrated.
The invention has the following beneficial effects:
1, MVR vapo(u)rization system is used in spraying pre-treatment waste water treatment process, realizes the zero-emission of waste water and condensed water
It can recycle.
2, salinity in waste water can be removed, makes up existing biochemical processing process and materializing strategy technique is unable to the disadvantage of desalination
End.
3, high degree of automation, operation and maintenance are simple.
4, the pretreatment of neutralization pond, flotation tank as, MVR vapo(u)rization system, has adjusted the pH of waste water, eliminates the cream in water
Carburetion ensure that the stable operation of MVR vapo(u)rization system.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Wherein: 1, raw water box；2, elevator pump；3, neutralization pond；4, flotation tank；5, MVR vapo(u)rization system；6, centrifugal dehydrator.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.
Embodiment 1
A kind of spraying pre-treatment Wastewater zero-discharge treatment system as shown in Figure 1, arrow indicates spraying pre-treatment waste water in figure
Flow direction.Spraying pre-treatment Wastewater zero-discharge treatment system includes raw water lift unit, acid-base neutralization unit, air-flotation process list
Member, evaporation process unit, centrifugal dehydration unit, raw water lift unit connect acid-base neutralization unit, acid-base neutralization list by elevator pump
The top of member connects air-flotation process unit, and air-flotation process unit connects evaporation process unit；Acid-base neutralization unit, air-flotation process list
The connection centrifugal dehydration unit of member, evaporation process unit.
Wherein, raw water lift unit includes raw water box 1, and acid-base neutralization unit includes acid-base neutralization pond 3, air-flotation process unit
Including flotation tank 4, evaporation process unit includes MVR vapo(u)rization system 5, and centrifugal dehydration unit includes centrifugal dehydrator 6.Raw water box is logical
It crosses elevator pump 2 and connects acid-base neutralization pond, the supernatant outlet in acid-base neutralization pond connects flotation tank, and the sediment in acid-base neutralization pond goes out
Mouth connection centrifugal dehydrator；Flotation tank connects MVR vapo(u)rization system, acid-base neutralization pond, flotation tank, the connection centrifugation of MVR vapo(u)rization system
Dewaterer.
Spraying pre-treatment Wastewater zero-discharge treatment system includes raw water lift unit, acid-base neutralization unit, air-flotation process list
Member, evaporation process unit, centrifugal dehydration unit.Acid-base neutralization unit to waste water carry out acid-base neutralization, air flotation cell go oil removing and
Oil removal is removed, evaporation process unit is evaporated concentration, the recycling condensing water of generation to waste water.The process equipment is stable
Reliably, high degree of automation, the advantages that operation and maintenance are simple.
Embodiment 2
The process of wastewater treatment of the invention is:
As shown in Figure 1, waste water enters acid-base neutralization pond 3 after the promotion of raw water elevator pump 2 by raw water box 1, in acid-base neutralization pond
Acid-base neutralization, residence time 5min are carried out, soda acid metering pump and pH meter interlocking add soda acid, so that pH is maintained 7-7.5, after processing
Supernatant enter flotation tank 4 and carry out oil removing and remove oil removal, medicament PAM is added in when operation in flotation tank.Treated
Waste water enters MVR vapo(u)rization system 5, and concentration is evaporated in MVR vapo(u)rization system, crystallization, the recycling condensing water of generation.In wherein
The crystallization generated with the sediment in pond 3, the dross of flotation tank 4, MVR vapo(u)rization system 5 enters centrifugal dehydrator 6 and is dehydrated, and produces
Raw solid waste entrusts qualified processing company to be handled.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.It should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (4)
1. a kind of spraying pre-treatment Wastewater zero-discharge treatment system, it is characterised in that:
It is described including raw water lift unit, acid-base neutralization unit, air-flotation process unit, evaporation process unit, centrifugal dehydration unit
Raw water lift unit connects acid-base neutralization unit by elevator pump, and the acid-base neutralization unit connects air-flotation process unit, the gas
Floating processing unit connects evaporation process unit；The acid-base neutralization unit, air-flotation process unit, evaporation process unit be all connected with from
Heart dewatering unit.
2. a kind of spraying pre-treatment Wastewater zero-discharge treatment system as described in claim 1, it is characterised in that: the raw water mentions
Rising unit includes raw water box, and the acid-base neutralization unit includes acid-base neutralization pond, and the air-flotation process unit includes flotation tank, institute
Stating evaporation process unit includes MVR vapo(u)rization system, and the centrifugal dehydration unit includes centrifugal dehydrator.
3. a kind of spraying pre-treatment Wastewater zero-discharge treatment system as claimed in claim 2, it is characterised in that: the raw water box
Acid-base neutralization pond is connected by elevator pump, the supernatant outlet in the acid-base neutralization pond connects flotation tank, the acid-base neutralization pond
Sediment outlet connection centrifugal dehydrator；The flotation tank connects MVR vapo(u)rization system, the acid-base neutralization pond, flotation tank,
MVR vapo(u)rization system connects centrifugal dehydrator.
4. a kind of spraying pre-treatment Wastewater zero-discharge treatment system as claimed in claim 2, it is characterised in that: before the spraying
Handle Wastewater zero-discharge treatment system processing method the following steps are included:
The first step, the case connect acid-base neutralization pond by raw water elevator pump, acid-base neutralization are carried out in acid-base neutralization pond；
Second step, the supernatant in the acid-base neutralization pond enter flotation tank, carry out oil removing and suspended matter processing；
Third step, treated, and supernatant enters MVR vapo(u)rization system is evaporated, the condensation water recovery and use evaporated；
4th step, the crystal after the sediment of neutralization pond, the dross of flotation tank and the evaporation of MVR vapo(u)rization system enter centrifugal dehydrator
It is dehydrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910653777.0A CN110386690A (en) | 2019-07-19 | 2019-07-19 | A kind of spraying pre-treatment Wastewater zero-discharge treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910653777.0A CN110386690A (en) | 2019-07-19 | 2019-07-19 | A kind of spraying pre-treatment Wastewater zero-discharge treatment system |
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| CN110386690A true CN110386690A (en) | 2019-10-29 |
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| CN201910653777.0A Pending CN110386690A (en) | 2019-07-19 | 2019-07-19 | A kind of spraying pre-treatment Wastewater zero-discharge treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170587A (en) * | 2020-02-24 | 2020-05-19 | 广州桑尼环保科技有限公司 | Spraying wastewater treatment process |
| CN113603293A (en) * | 2021-07-29 | 2021-11-05 | 汪春雨 | Treatment process of sewage manure urinal |
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| CN113603293A (en) * | 2021-07-29 | 2021-11-05 | 汪春雨 | Treatment process of sewage manure urinal |
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Address after: No.68, Jiangdong Street, Nanxi, Jianye District, Nanjing City, Jiangsu Province, 210000 Applicant after: Nanjing Branch of Guoneng Lang Xinming Environmental Protection Technology Co.,Ltd. Applicant after: Gu Gaogui Address before: 210000 4th floor, Xujian building, 68 Jiangdong Street, Nanxi, Jianye District, Nanjing, Jiangsu Province Applicant before: BEIJING LUCENCY ENVIRO TECH Co.,Ltd. NANJING BRANCH Applicant before: Gu Gaogui |
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Effective date of registration: 20210514 Address after: No.68, Jiangdong Street, Nanxi, Jianye District, Nanjing City, Jiangsu Province, 210000 Applicant after: Nanjing Branch of Guoneng Lang Xinming Environmental Protection Technology Co.,Ltd. Address before: No.68, Jiangdong Street, Nanxi, Jianye District, Nanjing City, Jiangsu Province, 210000 Applicant before: Nanjing Branch of Guoneng Lang Xinming Environmental Protection Technology Co.,Ltd. Applicant before: Gu Gaogui |
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Application publication date: 20191029 |