环境保护科学Issue(3):83-87,5.
SBR法培养好氧颗粒污泥的实验研究
Experimental Study of Cultivation of Aerobic Granular Sludge in SBR
摘要
Abstract
In this study, by use of common flocculent activated sludge from a municipal wastewater treatment plant as inoculation sludge and synthetic domestic wastewater, aerobic granular sludge was cultivated in a sequencing batch reactor (SBR). The results showed that by adjustment of operation mode and change of parameters, mature aerobic granular sludge was successfully cultivated on the thirty-third day, with size of about 2~3 mm. Addition of anoxic stationary phase after one time of aeration was helpful for denitrification and the removal rate of COD and NH -N could reach to 93% and 92% respectively. The aerobic granular3 sludge contained a large amount of protozoa and metazoan, indicating that the performance of sludge and the treatment effect was good. Then, the aerobic granular sludge was acclimated by gradual increasing of the domestic sewage ratio. When the sewage ratio reached to 100%, COD and NH -N in the effluent was less than 50 mg/L and 5 mg/L, meeting the level A effluent limits regulated in3 GB18918-2002.关键词
好氧颗粒污泥/培养/去除率/MLSS/SVIKey words
Aerobic Granular Sludge/Cultivation/Removal Rate/MLSS/SVI分类
资源环境引用本文复制引用
王允妹,张华..SBR法培养好氧颗粒污泥的实验研究[J].环境保护科学,2015,(3):83-87,5.基金项目
国家水体污染控制与治理科技重大专项(2012ZX07202-005-003)基金资助 ()