摘要
分析了城镇污水处理厂出水水质稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A排放标准的难点,总结了达标过程中使用的脱氮除磷化学药剂的种类、作用原理及优缺点,具体介绍了乙酸钠、聚合氯化铝两种化学药剂的投加量计算方式,最后探讨了使用化学药剂低成本达标的措施方法,为城镇污水处理厂投加化学药剂进行脱氮除磷提供了技术思路。
The paper analyzes the difficulty of the effluent water quality of urban sewage treatment plant to meet the discharge standard of pollutants in urban sewage treatment plant(GB 18918—2002),and summarizes the types,action principles and advantages and disadvantages of nitrogen and phosphorus removal chemicals used in the process of reaching the discharge standard.The calculation method of dosage of sodium acetate and polyaluminum chloride was introduced in detail,and the measures and methods of using chemical agents to meet the standard at low cost were discussed,which provided technical ideas for nitrogen and phosphorus removal by chemical agents in urban sewage treatment plants.
作者
赵莎
刘文
冯玲玲
宋宁宁
Zhao Sha;Liu Wen;Feng Lingling;Song Ningning(Jining Zhongshan Public Water Utilities Co.,Ltd.,Jining 272000,China)
出处
《山东化工》
CAS
2022年第5期243-245,共3页
Shandong Chemical Industry
关键词
城市污水处理
脱氮除磷
化学药剂
低成本
urban sewage treatment
denitrification and phosphorus removal
chemical agents
low cost
