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ANAEROBIC AMMONIA OXIDATION TREATMENT METHOD, ANAEROBIC AMMONIA OXIDATION TREATMENT APPARATUS, AND DENITRIFICATION METHOD OF ORGANIC WASTE WATER
ANAEROBIC AMMONIA OXIDATION TREATMENT METHOD, ANAEROBIC AMMONIA OXIDATION TREATMENT APPARATUS, AND DENITRIFICATION METHOD OF ORGANIC WASTE WATER
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机译:厌氧氨氧化处理方法,厌氧氨氧化处理装置以及有机废水的脱氮方法
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摘要
PROBLEM TO BE SOLVED: To provide an anaerobic ammonia oxidation treatment method and apparatus capable of stably holding a certain amount or more of microorganisms in a tank and capable of performing long-term stable treatment while suppressing membrane contamination, and to provide a method of denitrifying organic waste water using the apparatus.SOLUTION: An anaerobic ammonia oxidation treatment method includes an anaerobic ammonia oxidation process of generating nitrogen gas by bringing a liquid to be treated 6 containing ammonia nitrogen and nitrite nitrogen into contact with anaerobic ammonia oxidizing bacteria in anaerobic conditions. The process includes generating a gas-liquid mixed flow in an anaerobic ammonia oxidation tank 7 by immersing a separation membrane module 9, which separates and extracts treated water 8 from the anaerobic ammonia oxidation tank 7 storing the liquid to be treated 6 containing the anaerobic ammonia oxidizing bacteria and carriers on which the anaerobic ammonia oxidizing bacteria adhere, into the liquid to be treated 6 to separate and extract the treated water 8, pulling out nitrogen gas generated in the anaerobic ammonia oxidation tank 7, and circulating the pulled-out nitrogen gas into the anaerobic ammonia oxidation tank 7.SELECTED DRAWING: Figure 1
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