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High-efficiency advanced treatment method for organic silicon wastewater

A technology of advanced treatment and organic silicon, which is applied in the direction of flotation water/sewage treatment, neutralized water/sewage treatment, oxidized water/sewage treatment, etc. It can solve the problems of poor operation reliability, high operation cost, and large investment cost. Achieve the effect of low operating cost, good stability and flexible operation

Inactive Publication Date: 2019-11-29
浙江巨能环境工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The physical and chemical method not only has a large investment cost, but also has high operating costs, cumbersome maintenance, and poor operational reliability.

Method used

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  • High-efficiency advanced treatment method for organic silicon wastewater
  • High-efficiency advanced treatment method for organic silicon wastewater

Examples

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Embodiment 1

[0019] Such as figure 1 As shown in this example, a highly efficient advanced treatment method for organic silicon wastewater is described in this example. Pools, ozone reaction pools, and biofilm reaction pools are treated to meet the emission standards; among them:

[0020] (1) Organic silicon wastewater enters the grease trap to remove scum and oil slick;

[0021] (2) The organosilicon wastewater after oil separation enters the regulating tank to adjust the water volume and quality, and the water body residence time is not less than 48h;

[0022] (3) The effluent of the adjustment tank enters the neutralization sedimentation tank, and the pH value of the organic silicon wastewater is adjusted to 8-9 with liquid alkali in the neutralization sedimentation tank, and at the same time, 1-2 mg / L of PAM is added to promote sludge sedimentation;

[0023] (4) The effluent from the neutralization sedimentation tank enters the air flotation tank, and the air flotation tank adopts a ...

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Abstract

The invention relates to the technical field of organic silicon wastewater treatment, and in particular relates to an efficient advanced treatment method for organic silicon wastewater. The organic silicon wastewater sequentially passes through an oil separation tank, a regulating tank, a neutralization sedimentation tank, an air flotation tank, an anaerobic reaction tank, an aerobic reaction tank, a secondary sedimentation tank, an ozone reaction tank and a biomembrane reaction tank, and after being treated, the organic silicon wastewater reaches a class I standard of a comprehensive sewage discharge standard. The high-efficiency advanced treatment method obtained by the invention has the advantages of simple process, good stability, low operation cost, good effluent quality and flexibleoperation; finally, the wastewater reaches the first-class discharge standard.

Description

technical field [0001] The invention relates to the technical field of organosilicon wastewater treatment, in particular to an efficient advanced treatment method for organosilicon wastewater. Background technique [0002] A large amount of industrial wastewater will be generated during the construction and production of silicone projects. Its main components are high polymers such as organohalosilane and silicone rubber. The chemical composition is complex, it is strongly acidic, and its biodegradability is extremely poor. Cl - High content, containing a variety of heavy metal ions, high toxicity. [0003] For organic silicon wastewater treatment, pure physical and chemical methods or sewage treatment processes based on physical and chemical methods supplemented by microbial methods are mostly used, such as coagulation sedimentation, Fenton treatment process, air stripping treatment process, micro-electrolysis treatment technology, etc. The treatment is only It can meet th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30
CPCC02F1/24C02F1/40C02F1/56C02F1/66C02F1/78C02F3/30C02F9/00C02F2001/007C02F2101/30
Inventor 郑纪盟李婷沈峰郭慧张晓伟冯丽娟陈晨
Owner 浙江巨能环境工程有限公司