Achromobacter xylosoxidans strain for biological denitrificaion and application thereof

A colorless bacillus and biological denitrification technology, applied in the field of biological denitrification, can solve problems such as lengthy process, achieve broad application prospects, save equipment and investment costs, and simplify the process flow
CN101560486AInactive Publication Date: 2009-10-21PEKING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PEKING UNIV
Publication Date
2009-10-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an achromobacter xylosoxidans strain for biological denitrificaion and application thereof. The achromobacter xylosoxidans strain GAD3 is preserved in China General Microbiological Culture Collection Center (CGMCC for short) with preservation number CGMCC No. 2964 in March 19th, 2009. The strain is added to nitrogenous effluent with 2 to 6mg / L of dissolved oxygen to realize biological denitrificaion. The strain not only has the capability of heterotrophic nitrification, but also has the capability of aerobic denitrification. In the process of treating the nitrogenous effluent, only one aerobic stage is needed, the denitrification efficiency is high, and the operation is convenient and quick; and compared with the conventional biological denitrification process, the application has huge economic benefits.
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Description

technical field

[0001] The invention relates to the field of biological denitrification, in particular to a strain of Achromobacter xyloseoxidans used for biological denitrification and application thereof. Background technique

[0002] The main forms of nitrogen in wastewater are molecular nitrogen, organic nitrogen, ammonia nitrogen, nitrite nitrogen, nitrate nitrogen, and some nitrogen present in hydrogen sulfide and cyanide. Due to the toxic effect of ammonia nitrogen, the carcinogenic effect of nitrate, and the acidification and eutrophication of nitrogen compounds on ecosystems, rivers, lakes, and offshore oceans, how to economically and efficiently remove nitrogen in water has become a water pollution treatment technology. Research priorities and hotspots in the field of control.

[0003] Among the various denitrification methods that have been applied so far, biological denitrification is still the main means of wastewater denitrification treatment. The traditional...

Claims

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