摘要
南方某污水处理厂提标改造后,排放标准从一级B提高至一级A标准和广东省地标两者之严者。总氮、氨氮、总磷的排放值分别比原标准降低了25%、37. 5%、50%,而该厂提标后的主体工艺仍然为改良AAO氧化沟,这对污水处理厂的运行管理提出很大挑战。通过污泥硝化速率分析,总氮、总磷成分检测,精确加药,跌水复氧分析及改造等措施优化工艺运行后,运行效率明显提升,在确保水质稳定达标的同时,节约了生产成本,对同类污水处理厂的工艺优化改造具有一定的参考意义。
The discharge standard of a wastewater treatment plant after upgrading was raised from the national first level B to level A and the local standard of Guangdong Province. The new discharge limits on total nitrogen,ammonia nitrogen and total phosphorus,were 25%,37. 5% and 50% lower than those of the original standard. The main process was still AAO oxidation ditch after upgrading,which posed a great challenge to the operation and management. The process operation was optimized by analysis of sludge nitrification rate,total nitrogen and total phosphorus composition,accurate chemicals addition,fall re-oxygenation,and etc.,which significantly improved the operation efficiency,ensures the effluent water quality,reduced cost input,and provided reference for the similar wastewater treatment plants.
作者
周亚梁
黄东月
ZHOU Ya-liang;HUANG Dong-yue(Zhuhai Urban Drainage Co.Ltd.,Zhuhai 519000,China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2020年第8期113-118,共6页
China Water & Wastewater
关键词
污水处理厂
提标改造
脱氮除磷
运行优化
污泥硝化速率
精确加药
WWTP
upgrading
nitrogen and phosphorus removal
process optimization
sludge nitrification rate
accurate chemicals addition
fall re-oxygenation
