合成氨工业废水高效短程生物脱氮中试研究  

Pilot Study on Shortcut Biological Nitrogen Removal With Synthetic Ammonia Industrial Wastewater

作　　者：李泽兵[1] 马家轩 王晓毅 李妍[1] 赵白航[1] 李军[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]河南省化工研究所有限责任公司,郑州450052

出　　处：《北京工业大学学报》2012年第9期1436-1440,共5页Journal of Beijing University of Technology

基　　金：国家重大水专项资助项目(2009ZX07210-002)

摘　　要：以某实际合成氨化工厂废水为研究对象,进行高氨氮化工废水缺氧/好氧(A/O)工艺高效短程生物脱氮中试研究.试验结果表明:A/O系统经过90 d的运行,实现了稳定的短程硝化,并获得了稳定的有机物和氮去除.亚硝态氮积累率维持在80%以上,COD、NH4+-N和TN的去除率分别达到了95%、99%和80%.此外,机理分析表明,A/O中试系统获得稳定短程硝化的主要因素为较低ρ(DO)、较高ρ(FA)及适宜HRT三者的协同调控.A pilot-scale study on shortcut biological nitrogen removal from synthetic ammonia industrial wastewater was researched in an aerobic-anoxic system. The industrial wastewater contained a high NH4 ＋-N concentration with 80 - 110 mg/L. Experimental results showed that a stable short-cut nitrification and denitrification was achived after a period of 90 d operation. The accumulation nitrite was keeping above 80%. The removal efficiencies of COD, NH4＋-N and TN was 95% , 99% and 80% , respectively. In addition, the mechanism analysis showed that the main reason for getting the stable short- cut nitrification and denitrification in the pilot system was attributed to the collaboration of low dissolved oxygen （DO）, high free ammonia （FA） and appropriate hydraulic retention time （HRT）.

关 键 词：合成氨工业 A/O工艺 短程硝化反硝化 游离氨 

分 类 号：X703[环境科学与工程—环境工程]