微生物固定化技术对微污染水源水脱氮的试验研究  

Experimental study on nitrogen removal in micro-polluted water by immobilized microbe technique

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

机构地区：[1]西安建筑科技大学,西北水资源与环境生态教育部重点试验室,陕西西安710055

出　　处：《环境污染与防治》2009年第12期32-34,共3页Environmental Pollution & Control

摘　　要：针对微污染水源水贫营养和低碳源的特点,利用固定化微生物技术将异养硝化菌(WGX8、WGX18)、好氧反硝化菌(HF3、HF7)固定于自制悬浮纤维海绵球型填料上,研究了贫营养及好氧条件下水源水的生物脱氮过程。试验结果表明,在原水总氮2.7mg/L、氨氮1.3mg/L以及控制水温25℃、溶解氧3～4mg/L条件下,经过19d的连续运行,构建的生物膜系统对水中氨氮的去除率达到了100%,总氮去除率最高达到52%,处理效果稳定。According to the characteristics of lower nutrient substances and carbon source in micro-polluted wa- ter bodies, the author established a method of immobilizing beterotrotrophic nitrifying bacteria and the aerobic denitri- lying bacteria on suspended fiber/sponge spherical packing to strengthen bio-contact oxidation function. The constructed nitrification-denitrification system was employed for the treatment of micro-polluted water under aerobic condition, and the removal of nitrogen was experimentally studied. Experimental results showed that the removal rates of NH4＋-N and TN were 100% and 52% respectively after 19 d of operation under the conditions of TN was 2.7 mg/L, NH4＋-N was 1.3 mg/L, temperature was 25 ℃ and DO was 3-4 mg/L. The operation of the constructed bio-contact oxidation system kept in stable.

关 键 词：微污染水源水 好氧反硝化 固定化微生物 生物脱氮 

分 类 号：TU991.2[建筑科学—市政工程]