Comprehensive deep treatment method for wastewater

An advanced treatment and comprehensive wastewater technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve complex and special problems such as components, to ensure COD removal rate, improve Biodegradability, strong impact load resistance

Inactive Publication Date: 2014-04-02
晓清环保科技股份有限公司
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Problems solved by technology

Moreover, the comprehensive wastewater also contains a large amount of antibiotic substances, which are composed of wastewater discharged from pharmaceutical workshops that produce antipyretic and analgesic, anti-infective, cardiovascular and cerebrovascular, central nervous, hormone, and anthelmintic drugs. complex and special

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Embodiment Construction

[0017] A kind of comprehensive waste water advanced treatment method of the present invention, comprises the following steps:

[0018] (1) The mixed wastewater first enters the regulating tank for aeration and stirring, so that the water quality and quantity of the mixed wastewater are uniform;

[0019] (2) pump the waste water in step 1 into the biological treatment system of hydrolytic acidification-anaerobic-aerobic reaction, carry out biochemical treatment;

[0020] First of all, the macromolecular organic matter that is difficult to be biodegraded is decomposed into easily degradable acids and alcohols through the action of hydrolysis and acidification bacteria, the biodegradability of wastewater is improved, and sulfate ions are removed to a certain extent; the wastewater after hydrolysis and acidification enters the HAF pool, The HAF pool is the methanogenic phase of a two-phase composite anaerobic reactor. A large amount of COD removal in the anaerobic process is done...

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Abstract

The invention provides a comprehensive deep treatment method for wastewater. The method comprises steps of: (1) feeding mixed wastewater into a regulating tank and performing aeration and stirring to make the water quality and the water mount of the mixed waste water uniform; (2) piping the wastewater in the step (1) into a hydrolytic acidification-anaerobic-aerobic biological treatment system and performing biochemical treatment; and (3) subjecting discharged water of an oxidation ditch to a biochar reaction to perform deep treatment, and discharging after filtration by a biochar filtering tank. Organic matters, ammonia nitrogen, and the like which are difficult to biodegrade are absorbed by the biochar filtering tank and degraded slowly. According to the method, a sulfate reducing bacteria and a hydrolytic acidification bacteria are successfully cultured in a primary anaerobic reactor under a condition that COD/SO<4><2-> is smaller than 0.5, thus achieving partial removal of the SO<4><2-> and degradation of the macro-molecule organic matters and reducing the COD.

Description

technical field [0001] The invention relates to a wastewater treatment method, in particular to a comprehensive wastewater advanced treatment method. Background technique [0002] Industrial wastewater in the fields of medicine and chemical industry has complex components, high concentration of organic pollutants, and contains a large number of toxic and harmful substances, such as long-chain, side-chain lipids, petroleum ether, acetone, methanol, ethanol, methylene chloride, toluene and various acids, Alkali substances, which have a strong inhibitory effect on biochemically treated bacteria, are currently recognized as one of the most difficult wastewater to treat at home and abroad. Moreover, the comprehensive wastewater also contains a large amount of antibiotic substances, which are composed of wastewater discharged from pharmaceutical workshops that produce antipyretic and analgesic, anti-infective, cardiovascular and cerebrovascular, central nervous, hormone, and anthe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 韩小清
Owner 晓清环保科技股份有限公司
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