CAST工艺强化脱氮的设计改进  

Improved design of strengthen denitrification of CAST process

作　　者：安东子[1] 寇彦德[1] 谭国霞 李玮[1] 

机构地区：[1]北京首钢国际工程技术有限公司,北京100043

出　　处：《工业用水与废水》2017年第1期47-49,74,共4页Industrial Water & Wastewater

摘　　要：针对CAST工艺脱氮效率及同步硝化反硝化受碳源、生物絮体大小、溶解氧等因素的影响,以华北某污水处理厂为研究对象,结合污水处理厂运行现状,比较了CAST工艺强化脱氮等不同方案,提出了采用AO/SBR工艺作为该污水处理厂的升级改造工艺。运行结果表明,出水水质可以达到GB 18918—2002《城镇污水处理厂污染物排放标准》一级B标准。In view of the fact that, the denitrification efficiency and simultaneous nitrification and denitrification of CAST process are affected by carbon source, bioflocs size, dissolved oxygen and some other factors, with a sewage treatment plant in north China as the research object, according to its operation status, different strengthened denitrification schemes of CAST process were compared, AO/SBR was proposed to be the process for the said plant＇s upgrading and reconstruction. The running results showed that, the effluent water quality met the requirement of level B grade 1 in GB 18918--2002 Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant.

关 键 词：脱氮 AO/SBR 升级改造 碳源 

分 类 号：X703.1[环境科学与工程—环境工程]