不同曝气强度下SBR系统污染物去除及N_2O排放研究  

STUDY ON POLLULANT REMOVAL AND NITROUS OXIDE EMISSION FROM A SBR WASTEWATER TREATMENT SYSTEM UNDER DIFFERENT AERATION INTENSITY

作　　者：谭静亮[1] 孙力平[1] 李亚静[1] 

机构地区：[1]天津城建大学环境与市政工程学院天津市水质科学与技术重点实验室,天津300384

出　　处：《环境工程》2013年第S1期184-186,169,共4页Environmental Engineering

基　　金：国家水体污染控制与治理科技重大专项(课题号:2012ZX07308002)

摘　　要：为考察曝气强度对SBR(A/O)系统N2O产生量的影响,试验采用人工合成废水长期驯化2个月后的污泥,分别考察了在0.2,0.4,0.6L/min三个曝气强度下对污染物的去除情况及N2O的产生情况。结果表明:在三种曝气强度下磷酸盐的平均去除率均可达95%~98%,低曝气强度下N2O释放量明显高于中等曝气强度,高曝气强度下N2O释放量最大,0.4L/min曝气强度下污染物去除率最好N2O释放量低,因此确定为最佳曝气强度。The experiment investigated the removal of COD and the production of N2O under three aeration intensities( 0. 2,0. 4 and 0. 6L/min) by using the active sludge acclimated to artificial wastewater for two months. The results show that the average removal rate of phosphate under the three aeration intensities can all reach 95%~98%,the N2O emission under low-intensity aeration is obviously higher than that under high-intensity aeration. In the 0. 4L/min aeration intensity the removal rate of COD is the highest and the production of N2O reach the lowest,it`s the best aeration intensity.

关 键 词：序批式反应器 氧化亚氮 曝气强度 

分 类 号：X703[环境科学与工程—环境工程]