关键词: 微生物, 氨氮, 污水处理, 生物法, 环境污染

Abstract: Ammonia nitrogen was one of the vital factor of atmospheric  pollution. Buried rubbish would generated liquid, which contains high COD and ammonia nitrogen. COD and ammonia nitrogen makes the way that removal ammonia nitrogen become invalid. Microbiological removal of ammonia nitrogen,which has advantage of grew fast, high-efficiency, removed rapidly, nod by-product, as well as convenient. Absolutely can replaced the physical-chemical methods. This paper summarized the methods of microbiological removal of ammonia nitrogen, including  nitrification-denitrifying, heterotrophic-nitrifier-aerobic-denitrifier, anaerobic-mmonia-oxidation(ANAMMOX), similtaneous-nitrification-denitrification(SND), short-cut nitrification denitrification and so on. The paper also prospected their future research direction, which was expected to provide theory support for the study on removal of ammonia nitrogen.

Key words: microorganism, ammonia nitrogen, wastewater treatment, biological methods, environment pollution