Method for treating industrial sewage of automobile making

A technology for automobile manufacturing and industrial wastewater, applied in separation methods, sustainable biological treatment, chemical equipment and methods, etc. rate, long-generation reproduction cycle, and the effect of improving the treatment effect

Inactive Publication Date: 2010-09-15
JIANGXI JDL ENVIRONMENTAL PROTECTION CO LTD
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to provide a novel and efficient treatment method for automobile manufacturing industrial wastewater, which overcomes the defects of large floor area, high operating cost, low treatment efficiency and unstable treatment effect of the existing treatment process

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  • Method for treating industrial sewage of automobile making
  • Method for treating industrial sewage of automobile making

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Embodiment Construction

[0009] The automobile manufacturing industry wastewater treatment method of the present invention comprises: the physical and chemical pretreatment method of pretreatment wastewater, electrophoretic paint spray wastewater, emulsion cleaning machine wastewater, the pretreatment method before the wastewater from the adjustment pool enters the biochemical system, and the biochemical treatment method. . Its basic technological process is as follows:

[0010] The primary physical and chemical treatment of the pre-treatment wastewater is carried out through the reaction tank 1 and the sedimentation tank 1 to remove large suspended particles and phosphate in the wastewater, and the chemical agents are lime, polyaluminum chloride and polyacrylamide.

[0011] Through the reaction tank 2 and the sedimentation tank 2, the electrophoretic painting wastewater is subjected to acid analysis and coagulation sedimentation treatment to remove the polymer resin, pigment, titanium dioxide and ani...

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Abstract

The invention relates to a method for treating industrial sewage of automobile making, which carries out mud and water separation by combining with pretreatment methods of phosphorus-contained sewage, electrophoretic coating painting sewage and emulsion cleaning machine sewage by replacing a biochemical reaction tank and a secondary sedimentation tank in the traditional treatment process with a membrane bioreactor, and all activated sludge is trapped without adding medicines for sedimentation, which greatly increases the microbial biomass in the biochemical reaction tank, and thereby the biochemical reaction rate is increased; the occupation area of a sewage treatment system is reduced, the treatment process is optimized and sludge disposing expenses are reduced. The method has lower operating cost, simple operation, high degree of automation and strong anti-impact load capability.

Description

technical field [0001] The invention relates to a method for treating industrial wastewater, in particular to a method for treating industrial wastewater from automobile manufacturing. Background technique [0002] Automobile manufacturing industrial wastewater can be divided into two categories: painting wastewater and machining wastewater. The former includes pre-treatment wastewater, electrophoretic painting wastewater and spray painting wastewater, and the latter includes emulsion and washing machine wastewater. Automobile manufacturing industrial wastewater has high organic content, high phosphate content, complex composition, irregular discharge, large changes in water volume and water quality, and belongs to high-concentration organic wastewater with poor biodegradability. [0003] At present, the treatment methods of automobile manufacturing industrial wastewater are mainly physicochemical-biochemical methods. First of all, for different types of automobile manufact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/40C02F1/52C02F1/66C02F3/10C02F3/12C02F1/44
CPCY02W10/10
Inventor 廖志民龙斌何其虎邹莲花郭景奎沈平锐王鹏杨欣周佳琳杨圣云
Owner JIANGXI JDL ENVIRONMENTAL PROTECTION CO LTD
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