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Automobile coating wastewater treatment process and automobile coating wastewater treatment system

A technology for painting wastewater and treatment process, which is applied in the field of automobile painting wastewater treatment process and automobile painting wastewater treatment system, and can solve the problems of complex structure and inconvenient automobile painting wastewater treatment, investment and operation of automobile painting wastewater treatment system High cost and other issues, to achieve good sewage purification effect, good social and economic benefits, and simple structure

Pending Publication Date: 2017-10-20
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing automobile painting wastewater treatment process is relatively complicated, and the structure of the automobile painting wastewater treatment system is relatively complicated, and it is not convenient for the treatment of automobile painting wastewater
At the same time, the existing automobile painting wastewater treatment process requires a large area, and the investment and operation costs are relatively high

Method used

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  • Automobile coating wastewater treatment process and automobile coating wastewater treatment system
  • Automobile coating wastewater treatment process and automobile coating wastewater treatment system
  • Automobile coating wastewater treatment process and automobile coating wastewater treatment system

Examples

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no. 1 example

[0034] see figure 1 , the present embodiment provides an automobile painting wastewater treatment system 10, which has a simple structure and a good sewage purification effect. At the same time, it has the characteristics of small footprint, low investment and operating costs, convenient operation and management, and has good social and economic benefits.

[0035] The automobile painting wastewater treatment system 10 provided in this embodiment includes a pretreatment system 500 , a coagulation reaction tank 400 , an inclined tube sedimentation tank 300 , a hydrolysis tank 200 and a biological filter tank 100 .

[0036] The pretreatment system 500 provided in this embodiment is connected to the coagulation reaction tank 400, the coagulation reaction tank 400 is connected to the inclined tube sedimentation tank 300, the inclined tube sedimentation tank 300 is connected to the hydrolysis tank 200, and the hydrolysis tank 200 is connected to the biofilter 100 .

[0037] It can...

no. 2 example

[0068] This embodiment provides a process for treating automobile painting wastewater, which is used to treat automobile painting wastewater. The steps are simple and the sewage purification effect is good. At the same time, it has good social and economic benefits.

[0069] The automobile painting wastewater treatment process provided in this embodiment is carried out by using the automobile painting wastewater treatment system 10 provided in the first embodiment.

[0070] The automobile painting wastewater treatment process provided in this embodiment includes: a pretreatment step, a coagulation reaction step, a precipitation removal step, a hydrolysis acidification step and a molecular decomposition step.

[0071] Pretreatment steps: degreasing the degreasing wastewater, precipitating the phosphating and passivating wastewater, precipitating the electrophoresis wastewater and pretreating the painting wastewater, and treating the degreasing wastewater, phosphating and passi...

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PUM

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Abstract

The invention discloses an automobile coating wastewater treatment process and an automobile coating wastewater treatment system and relates to the field of treatment of industrial wastewater. The automobile coating wastewater treatment process provided herein comprises the steps of pretreatment, coagulating reaction, precipitate removing, hydrolytic acidification, and molecular decomposition. The invention also provides the automobile coating wastewater treatment system employing the automobile coating wastewater treatment process. In addition, the automobile coating wastewater treatment process and the automobile coating wastewater treatment system have the advantages that floor area is small, investment and operation costs are low, operative management is convenient, and good social and economic benefits are created.

Description

technical field [0001] The invention relates to the field of industrial wastewater treatment, in particular to a process for treating wastewater from automobile painting and a system for treating wastewater from automobile painting. Background technique [0002] There are many types of pollutants in the coating wastewater, the discharge volume is large, and there is no fixed discharge law, and it contains heavy metal ions, etc., which are the focus and difficulty of pollution control. At present, more than 90% of the outer surfaces of automobiles and motorcycles need to be painted. The painting of automobile body and parts is one of the links in the production of automobile industry that produces the most types of pollutants and the largest amount of wastewater discharge. [0003] The existing automobile painting wastewater treatment process is relatively complicated, and the structure of the automobile painting wastewater treatment system is relatively complicated, and it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F11/12C02F11/14
CPCC02F9/00C02F11/12C02F11/14C02F2001/007C02F3/28C02F2301/08C02F1/444C02F3/00C02F1/66C02F1/5281C02F1/40
Inventor 秦建华王敦球李稳邓晨韵
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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