Integrated treatment method for fermentation pharmaceutical wastewater

A treatment method and technology for pharmaceutical wastewater, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of increasing the cost of pharmaceutical wastewater treatment, and achieve easy control of the operation process, The effect of reducing operating costs and minimizing pollution

Inactive Publication Date: 2012-02-15
ZHENGZHOU UNIV +1
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Problems solved by technology

And with the implementation of "Water Pollutant Discharge Standards for Fermentation Pharmaceutical Industry" (GB21903-2008), a single anaerobic-aerobic process cannot meet the requirements, and advanced treatment becomes necessary, which increases the cost of pharmaceutical wastewater treatment. Environmental protection requirements have become an important factor restricting the further development of many biopharmaceutical manufacturers

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  • Integrated treatment method for fermentation pharmaceutical wastewater

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[0027] The present invention will be further described below in conjunction with accompanying drawing.

[0028] An integrated treatment method for fermentation pharmaceutical wastewater, the steps of which include:

[0029] 1) Pretreatment: Put the wastewater from the extraction section of the pharmaceutical factory into the primary sedimentation tank first, and the primary sedimentation tank is equipped with an oil skimming and mud scraping machine; The homogeneous and even quantity of wastewater from other sections enters the high-efficiency shallow air flotation tank for shallow air flotation. The hydraulic retention time of the primary settling tank and regulating tank is 6h.

[0030] 2) Make the pretreated wastewater flow through the two-stage separation internal circulation anaerobic reactor and the composite A / O reactor for biological treatment, and then perform Fenton oxidation on the effluent.

[0031] The COD volume load of the two-stage separation internal circula...

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Abstract

An integrated treatment method for fermentation pharmaceutical wastewater belongs to the technical field of waste water treatment and comprises steps that the waste water is pretreated with precipitation and air floatation, then flows through a two stage separation internal circulation anaerobic reactor and a compound A / O reactor for biological treatments, and outlet water is treated with Fenton oxidation. The treatment method reasonably integrates advantages of the internal circulation anaerobic reactor, the compound A / O reactor and the Fenton oxidation technology, has a waste water COD clearance reaching 99% and an ammonia nitrogen clearance reaching 90%, can produce biogas products with economical values and has multiple advantages of low treatment costs, easily controlled operating process, high load of the matching reactors and small land occupation, etc.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and specifically relates to an integrated treatment technology integrating a two-stage separation internal circulation anaerobic reactor, a composite A / O and Fenton oxidation, and is especially suitable for fermented pharmaceutical wastewater. Background technique [0002] Fermentation pharmaceuticals are based on the life activities of microorganisms, using the growth, reproduction and metabolism of microorganisms to synthesize certain products and extract pharmaceutical products from them. The fermentation industry will produce a large amount of high-concentration organic wastewater, the main components of which are fermentation residues and residual drugs, as well as various organic solvents (solvents) and some inorganic salts remaining in the product extraction process. Fermented pharmaceutical wastewater is usually dark in color, heavy in smell, complex in composition, high in p...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 买文宁代吉华贾晓凤王敏梁家伟武彦威孙润超
Owner ZHENGZHOU UNIV
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