化工进展2016，Vol.35Issue(12)：4020-4025,6.DOI:10.16085/j.issn.1000-6613.2016.12.040
污水微生物脱氮过程中N2O产生机理及影响因素研究进展
Progress on mechanisms and influence factors of N2O production in microbial nitrogen removal process from wastewater
摘要
Abstract
Nitrous oxide(N2O)emitted during biological nitrogen removal process is a potent greenhouse gas and can result in the destruction of the ozone layer. This paper summarizes the mechanisms and influencing factors of N2O production during wastewater biological nitrogen removal process. Hydroxylamine oxidation and nitrifier denitrification are two main pathways to produce N2O for nitrification,and factors such as dissolved oxygen,ammonium nitrogen and nitrite mainly affect microbial activity or enzyme activity that influences indirectly N2O emission from nitrification process. Denitrification process is another important source for the production of N2O,and the quantity of N2O emission has a direct connection with nitrous oxide reductase,whose activities can be affected by factors such as dissolved oxygen,organic carbon,and nitrite. New biological nitrogen removal technologies have become potential sources of N2O,but further research on mechanisms of N2O production is needed. Although N2O emission is closely related to the changes of surrounding environment,the main cause for N2O emission is the effect of microbial actions and enzyme activities. The future research on the wastewater biological nitrogen removal process should focus on the control and reduction strategy of N2O,and shows some suggestions.关键词
生物脱氮/一氧化二氮/影响因素/污水处理Key words
biological nitrogen removal/nitrous oxide/influence factors/wastewater treatment分类
资源环境引用本文复制引用
陈虎,王莹,吕永康..污水微生物脱氮过程中N2O产生机理及影响因素研究进展[J].化工进展,2016,35(12):4020-4025,6.基金项目
国家重点研发计划（2016YFB0600502）及山西省国际合作计划（201603D421040）项目。 （）
