环境工程学报2012,Vol.6Issue(4):1225-1230,6.
污泥转移SBR工艺处理低浓度生活污水
Low concentration domestic wastewater treatment with sludge-shifting SBR process
摘要
Abstract
The sludge-shifting SBR process is an updated biological wastewater treatment process,in which the activated sludge can be transferred among the different SBR units by means of internal sludge cycling,aimed to improving the treatment performance of the system through increasing the efficiency of biomass utilization.An on-site sludge-shifting SBR system with design capacity of 240 m3/d was studied,for treating low concentration domestic sewage.The system was operated under the different sludge transfer volumes(different sludge cycling ratios),and also conventional SBR mode,the treatment performances under different conditions were analyzed and compared.The results show that the updated process can effectively increase the utilization of the working volume of SBR units.Compared to the conventional SBR process,the updated process could increase the treatment capacity by nearly 1/2 with phosphorus removal efficiency increased from 46% to 85% when the sludge cycling ratio was 30%,and the effluent quality met the requirements of the national state discharge criteria.关键词
污泥转移/序批式活性污泥法/污泥回流比/脱氮除磷Key words
sludge transfer/SBR/sludge return ratio/nitrogen and phosphorus removal分类
资源环境引用本文复制引用
潘杨,黄勇,曹桂华,李勇,赵印举..污泥转移SBR工艺处理低浓度生活污水[J].环境工程学报,2012,6(4):1225-1230,6.基金项目
基金项目:江苏省自然科学基金项目 ()
住建部科技计划项目 ()
江苏省重点实验室开放课题 ()