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.
出处
《环境工程》
CAS
CSCD
北大核心
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)
