Abstract:

Anaerobic ammonium oxidation ( Anammox) is a biological oxidation process,which can convert NH+₄ -N andNO -₂ -N to N₂ directly. Recently,it has become a hot topic in the research of new biological nitrogen removal technology.However,anaerobic ammonium oxidizing bacteria plays a key role in the process of Anammox,and is strictly required to theecological environment conditions. At present,the research on Anammox biological conversion process has been made a greatprogress. Yet,the mechanism of microbial metabolism and regulation technology of Anammox are still lacked of deep research,which seriously restrict the engineering application. Microbiology mechanism of anaerobic ammonium oxidizing bacteria,physiological characteristics,and the key enzyme genes which participate in centre metabolic pathway were overall illustrated.Then,chemical and biochemical reaction model and the influences of biological metabolism on significant ecologicalfactors were discussed. Finally,based on application progress of Anammox technology in domestic and foreign typical sewagedenitrification technology,engineering application statuses and the restrictions of development for Anammox technology wereintensively analysed. Moreover,the prospect of theory research on Anammox technology and industrialization in the futurewere also discussed.

Key words: font-size: 10.5pt, mso-bidi-font-size: 11.0pt, mso-fareast-font-family: 宋体, mso-fareast-theme-font: minor-fareast, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA" lang="EN-US">anaerobic ammonium oxidizing bacteria, nitrogen removal process, microbiological mechanism, metabolic pathway