污水处理厂脱氮效果及相关参数的分析  

Analysis of the removal of nitrogen and characteristic of operation parameters in a wastewater treatment plant

作　　者：范茏[1] 王志强[1] 罗彬 陈大方[3] 王颖哲 刘艳臣[1] 施汉昌[1] 

机构地区：[1]清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京100084 [2]国祯环保节能科技股份有限公司,合肥230001 [3]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《环境工程学报》2007年第6期1-5,共5页Chinese Journal of Environmental Engineering

基　　金：国家高技术研究发展计划"863"项目(2004AA601060)

摘　　要：通过对长沙某污水处理厂进行24 h水质、水量的监测,分析了其Carrousel氧化沟处理污水的特点。从脱氮的原理出发,结合流速、溶解氧等运行参数的考察,发现造成脱氮效果不好的主要原因是沟内缺少厌氧区段,提出改进措施,从宏观改善流体的流动入手,以达到调控溶解氧传递的目的,既而促进微观的硝化与反硝化反应,提高污水处理效果。The variations of water quality and flux in 24 h of a wastewater treatment plant in Changsha are monitored. The characteristic of the Carrousel oxidation ditch is obtained. By analysis, it is found that the reason for the less removal of nitrogen in this old plant comes from the absence of anaerobic region in the oxidation ditch. Then corresponding methods are presented. We can improve nitrification and denitrification by controlling dissolved oxygen transfer, flow pattern and flow velocity in the Carrousel oxidation ditch.

关 键 词：CARROUSEL氧化沟 脱氮 操作参数 硝化 反硝化 

分 类 号：X52[环境科学与工程—环境工程] O35[理学—流体力学]