污水生物处理过程中N_2O的逸出控制  

N_2O emission control in biological wastewater treatment process

作　　者：张朝晖[1] 吕锡武[1] 

机构地区：[1]东南大学环境工程系,南京210096

出　　处：《给水排水》2004年第4期32-36,共5页Water & Wastewater Engineering

摘　　要：N_2O是大气中重要的温室气体之一,控制其大气浓度的增长具有重要意义。研究表明,污水生物处理的硝化反硝化过程是N_2O的重要源强之一,N_2O的逸出主要发生在亚硝化过程和反硝化过程,而且逸出量受环境因素影响很大。深入了解N_2O的逸出机理和外界因素的影响规律是有效控制N_2O的前提和基础。N2O is an important green house gas in the atmosphere, so it is very important to control the increase of N2O concentration. Research has suggested that biological nitrification and denitrification of wastewater is one of important source of N2O, and its emission occurres during nitrosofication and denitrification. Moreover, the amount of N2O emission is dramatically influenced by many environmental factors. Fully understanding of emission mechanics and affecting rules of various factors is a premise to control N2O.

关 键 词：硝化反硝化 生物脱氮 污水处理 N2O 大气浓度 

分 类 号：X703.1[环境科学与工程—环境工程]