Anaerobic ammonia oxidized coupled heterotrophic denitrifying denitrification method

An anaerobic ammonium oxidation coupled, heterotrophic denitrification technology, applied in anaerobic digestion treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of organic pollutants, competition, etc. The effect of low mud yield, simple process and shortened start-up time
CN103420481AActive Publication Date: 2013-12-04BEIJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF TECH
Publication Date
2013-12-04

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Abstract

The invention relates to an anaerobic ammonia oxidized coupled heterotrophic denitrifying denitrification method and belongs to the technical field of biological sewage treatment. The method includes adopting anaerobic ammonia oxidized granule sludge as the inoculated sludge; manually distributing water to add ammonium chloride, sodium nitrite, and phenol which is taken as organic matter, realizing enrichment culture of anaerobic ammonium oxidized bacteria and heterotrophic denitrifying bacteria, determining competitive and cooperative relations of the anaerobic ammonium oxidized bacteria and heterotrophic denitrifying bacteria, and realizing the enrichment culture of mixed flora of the anaerobic ammonium oxidized bacteria and heterotrophic denitrifying bacteria after a period of time.
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Description

technical field

[0001] The invention belongs to the technical field of sewage biological treatment, and in particular relates to an anaerobic ammonium oxidation coupled heterotrophic denitrification method for denitrification. Background technique

[0002] Existing sewage treatment plants mostly adopt the traditional biological nitrification and denitrification denitrification process. In the nitrification stage, aeration is required to convert ammonia nitrogen into nitrate nitrogen. In the denitrification stage, an additional carbon source is required to convert nitrate nitrogen into nitrogen gas. , Dosing carbon sources will undoubtedly increase the cost of wastewater treatment, and the treatment efficiency of traditional denitrification process is not high. Therefore, there is an urgent need for a highly efficient and energy-saving wastewater denitrification process. In 1995, the Deft University of the Netherlands reported the existence of anammox bacteria, and then a ne...

Claims

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