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Method for treating high concentration organic waste water

A technology of organic sewage and treatment methods, applied in water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of unstable water quality, low pollutant removal rate, and land occupation of facilities Large area and other problems, to achieve the effect of large or small processing capacity, effective coagulation, and low operating cost

Inactive Publication Date: 2008-02-13
绵阳馨源环保科技有限公司
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Problems solved by technology

In the prior art, there are many treatment methods for organic sewage, such as: flocculation biological fluidized bed treatment, aerobic and anaerobic biological treatment, chemical agent treatment, etc., but these methods are not suitable for high-concentration organic sewage, especially COD cr (Chemical Oxygen Demand) of high-concentration organic sewage above 10000mg / l generally has low pollutant removal rate, large facility area, long treatment cycle, high treatment cost, unstable water quality, and easy to cause secondary pollution. Secondary environmental pollution, it is difficult to economically treat a large amount of high-concentration organic sewage, etc.

Method used

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  • Method for treating high concentration organic waste water

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Embodiment 1

[0030] Embodiment 1: see accompanying drawing.

[0031] A method for treating high-concentration organic sewage, mainly consisting of the following steps:

[0032] a. Pre-treatment: The organic sewage is treated with desanding and slag removal to remove solids; the pre-treatment process includes usually required primary treatment equipment, such as coarse screens, fine screens, grit chambers, etc. These equipments can Design according to the specific situation of the enterprise sewage;

[0033] b. Flocculation and precipitation separation: add flocculants (such as polyacrylamide, silica gel, etc., the flocculants used in the prior art) to the organic sewage, and remove the filter residue through stirring, sedimentation and filtration;

[0034] After desanding and slag removal, the organic sewage first enters the flocculation tank 1, where preliminary flocculation and sedimentation separation is carried out, so as to recover useful substances (such as protein) in the sewage; t...

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Abstract

The method of treating high concentration organic waste water includes eliminating sand and slag, and flocculating deposition to separate, as well as microbial degradation and catalytic oxidizing degradation in an integrated degrading tank, and electrolyzing oxidation degradation. After depositing separation, the sludge is incinerated and the catalytic oxidant is regenerated for reuse. The treated waste water is drained or reused. The present invention integrates various water treating modes, physical, biological, chemical, electrochemical, etc. and has high waste water purifying effect.

Description

technical field [0001] The invention belongs to multistage treatment of water, waste water or sewage, and relates to a treatment method for high-concentration organic sewage. Background technique [0002] The organic sewage generated in the production of organic chemical industry, food processing, textile printing and dyeing, papermaking, leather, pharmaceutical and other industries, as well as livestock and poultry breeding, etc., will cause serious pollution when discharged into rivers, resulting in the shortage of water resources and the deterioration of water environment quality. In the prior art, there are many treatment methods for organic sewage, such as: flocculation biological fluidized bed treatment, aerobic and anaerobic biological treatment, chemical agent treatment, etc., but these methods are not suitable for high-concentration organic sewage, especially COD cr (Chemical Oxygen Demand) of high-concentration organic sewage above 10000mg / l generally has low pollu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F1/52C02F3/28C02F1/461
CPCY02E50/30
Inventor 黄尚勋黄明科
Owner 绵阳馨源环保科技有限公司
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