Method for promoting growth and nitrification activity of amine salt oxidizing bacteria in activated sludge

A technology of activated sludge and sludge method, applied in chemical instruments and methods, water/sludge/sewage treatment, sustainable biological treatment, etc. and other problems, to achieve good application prospects and improve the effect of nitrification activity
CN101696054BInactive Publication Date: 2011-06-29TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2011-06-29
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a method for promoting the growth and the nitrification activity of amine salt oxidizing bacteria in activated sludge, which comprises the step of adding ozone lysis sludge in the activated sludge. The invention can improve the nitrification activity and the survivability to the temperature of the sludge without a fixing carrier, and can solve the problem of residual sludge during the wastewater treatment, thereby having better application prospect in the industry.
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Description

technical field

[0001] The invention relates to a method for promoting the growth and nitrification activity of ammonia oxidizing bacteria in activated sludge. Background technique

[0002] With the rapid development of industrial and agricultural production and the continuous growth of population, the amount of wastewater is increasing, and nitrogen pollution is becoming more and more serious. Therefore, denitrification has become an important task in water pollution control.

[0003] Microorganisms in activated sludge system are very important for nitrogen treatment process. Nitrogen removal in biological treatment includes two main steps of nitrification and denitrification, and the nitrification process is the rate-limiting step of the whole system. The nitrification process can be divided into two steps, and each step is controlled by different bacteria: the first step is to oxidize ammonia salt to nitrite (ammonia salt oxidizing bacteria, ammonia oxidizing bacteria, A...

Claims

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