异养型同步硝化反硝化处理微污染水源水  

Simultaneous Nitrification and Denitrification for Treating Slightly Polluted Water with Heterotrophic Nitrification Bacteria and Aerobic Denitrifiers

作　　者：苏俊峰[1] 黄廷林[1] 刘燕[1] 李倩[1] 叶羡婧[1] 焦菲[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《环境科学与技术》2010年第3期141-143,161,共4页Environmental Science & Technology

基　　金：国家自然科学基金项目(50778147);国家"863"项目(2007AA06Z302)

摘　　要：针对微污染水源水营养贫乏特点,从富集驯化的底泥中筛选出3株异养硝化细菌和3株好氧反硝化细菌,3株异养硝化细菌对铵氮的去除率分别为97.02%、100%和100%,3株好氧反硝化细菌对总氮的去除率为98.52%,98.55%和98.6%,利用固定化微生物技术将异养硝化菌、好氧反硝化菌固定于海绵球型填料上,强化生物接触氧化处理水源水,试验结果表明:在水温25°C、溶解氧4mg/L左右、水力长期停留的条件下,经过17d的运行,铵氮去除效率可以达到100%,总氮去除率达到42%。Three strains of heterotrophic nitrification bacteria and three strains of heterotrophic nitrification bacteria are isolated from sediments of a reservoir respectively, and immobilized in suspended sponge spherical pellets, which is used as media in an experimental biological contact oxidation system for treating slightly polluted water. The experimental result indicates that after an operation of 17 temperature of 25℃, DO 4mg/L and a days, removal of NH4^＋-N could attain 100% and TN 42% under the condition of water long hydraulic retention time

关 键 词：异养硝化细菌 好氧反硝化细菌 固定化微生物 同步硝化反硝化 

分 类 号：X172[环境科学与工程—环境科学]