基于CAST工艺的城市污水脱氮效果研究与评价  

Research and Evaluation on the Nitrogen Removal Effect of Urban Sewage Based on CAST Process

作　　者：钱龙 董军 董光辉 张顺涛 杨金明 QIAN Long;DONG Jun;DONG Guanghui;ZHANG Shuntao;YANG Jinming(Central&Southern China Municipal Engineering Design and Research Institute Co.,Ltd.,Wuhan 430010,Hubei,China)

机构地区：[1]中国市政工程中南设计研究总院有限公司,湖北武汉430010

出　　处：《工程技术研究》2023年第21期193-195,共3页Engineering and Technological Research

摘　　要：文章概述了CAST工艺,讨论了其在城市污水脱氮的应用情况,并进一步结合实际工程案例,就其在城市污水脱氮处理中呈现的效果进行了评价。对比两个阶段的试验可知,采用CAST工艺可以有效降低污水中NH3-N及TN的浓度,与硝化反应耦合的脱氮方式能进一步提升相关污染物指标的去除率,为该工艺的实际应用提供了指导。This paper provides an overview of the CAST process,discusses its application in urban sewage nitrogen removal,and further evaluates its effect in urban sewage nitrogen removal combined with practical engineering cases.By comparing two stages of the tests,it can be seen that the CAST process can effectively reduce the concentration of NH3-N and TN in sewage,and the denitrification method coupled with nitrification reaction can further improve the removal rate of related pollutant indicators,which provides guidance for the practical application of the process.

关 键 词：CAST工艺 城市污水 脱氮效果 去除率 

分 类 号：X703[环境科学与工程—环境工程]