Method for enhancing anammox activity by adding manganese dioxide

A kind of anammox bacteria, anaerobic ammonium oxidation technology, applied in the field of strengthening the activity of anammox bacteria, can solve the problems of easy loss, long doubling time of anammox bacteria, low cell yield, etc., to increase the operating load Effect
CN108264145AInactive Publication Date: 2018-07-10HANGZHOU NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HANGZHOU NORMAL UNIVERSITY
Publication Date
2018-07-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for enhancing anammox activity by adding manganese dioxide. The method includes: adopting an upflow anaerobic sludge bed reactor, taking anaerobic ammonium oxidation granule sludge as the inoculation source, taking simulation wastewater containing ammonia nitrogen and nitrite nitrogen as the influent water, also adding an inorganic salt buffer solution and trace elements maintaining microorganism growth, after stable operation under anaerobic and dark conditions with a temperature of 35+ / -1DEG C, an influent water pH of 7.70-7.80, and a hydraulic retention timeof 0.9-1.0h, adding manganese dioxide into the influent water of the reactor in a phased increasing way, performing culture until the activity of the reactor sludge is 2.4-2.6 times that of inoculatedsludge, thus completing culture. The anaerobic ammonium oxidation granule sludge culture by the method provided by the invention has the advantages of high activity, good nitrogen removal performance, high microorganism concentration and the like.
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Description

(1) Technical field

[0001] The invention relates to a method for strengthening the activity of anaerobic ammonium oxidizing bacteria, in particular to a method for strengthening the activity of anaerobic ammonium oxidizing bacteria by adding manganese dioxide powder. (2) Background technology

[0002] The ANAMMOX process is considered to be an innovative and promising biological nitrogen removal process due to its advantages of less sludge production, no need for additional organic carbon sources, less greenhouse gas emissions, low operating costs, and high nitrogen removal efficiency.

[0003] Anammox bacteria are ubiquitous in various natural environments such as marine sediments, inland lakes and agricultural soils, especially manganese oxides, because of their special physical and chemical properties such as large specific surface area and high reactivity, they are considered to be in Marine sediments play an important role in the nitrogen cycle. The redox process of ma...

Claims

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