南方城镇污水极限氮磷去除工艺中试研究

Pilot Study on Urban Sewage Limiting Nitrogen and Phosphorus Removal Process in Southern Towns

针对南方城镇污水极限氮磷去除,设计开发了由水解酸化池、多级A/O生物系统、反硝化滤池、臭氧接触氧化池、活性炭滤池组成的中试装置。调节该中试装置的运行参数,并连续稳定运行45 d,试验结果表明,该组合工艺能够实现城镇污水极限氮磷去除目标,出水TN≤3 mg/L、TP≤0. 1 mg/L、COD≤30 mg/L。

A pilot plant that combined hydrolytic acidification tank,multi-stage A/O biological system,denitrification biofilter,ozone contact oxidation tank and activated carbon filter was designed and developed aiming at limiting nitrogen and phosphorus removal of urban sewage in southern towns.Through 45 days of continuous operation,the process could achieve the goal of removing limiting nitrogen and phosphorus in urban sewage by adjusting the operational parameters,and the TN,TP and COD in the effluent were no more than 3 mg/L,0.1 mg/L and 30 mg/L,respectively.