废水生物脱氮技术研究进展

介绍了几种新型脱氮工艺,主要包括短程硝化反硝化、氧限制自养硝化反硝化(OLAND)、全程自养脱氮(CANON)、厌氧氨氧化、同步反硝化脱磷除硫等工艺。它们以亚硝化反应和厌氧氨氧化反应为主,使脱氮具有更加低能耗、高效率的特点。微生物种类的扩展,厌氧氨氧化和反硝化反应的竞争,羟氨转化为联氨是厌氧氨氧化菌活性出现的标志等是最新的研究内容,但新型脱氮工艺的影响因素与控制方略,特别是相关物质转换,微生物学机理有待进一步研究。

Research Advances of Nitrogen Removal by Biotechnology in Wastewater Treatment

This paper introduces several novel biological nitrogen removal processes,including short- cut nitrification and denitrification,oxygen limited autotrophic nitrification and denitrification（ OLAND）,Completely Autotrophic Nitrogen Removal Over Nitrite（ CANON）,ANAMMOX,simultaneous denitrifying dephosphorization and desulphuration etc,which makes the nitrogen removal processes become lower energy consumption and higher efficiency. Aerobic ammonium oxidizing and anaerobic ammonium oxidizing are the major reactions. The development of the microbial species and the competition between anaerobic ammonium oxidizing bacteria and denitrification bacteria,hydroxylamine conversion into hydrazine is a sign of activity appearing for anaerobic ammonia oxidation bacteria are the newest topics,but the influence factors,the strategies and tips of control,the chemical conversion,microbiological assay of these processes should be studied in the future.