基于固定化氮循环细菌技术的镇江金山湖生态工程效果研究  

Ecological Engineering Experiment for Jinshan Lake in Zhenjiang Base on Techniques of Immobilized Nitrogen Cycling Bacteria

作　　者：李正魁[1,2] 张晓姣[1] 杨竹攸[1,2] 石鲁娜[1,2] 王月明[1] 冯露露[1,2] 吕溢修[1] 

机构地区：[1]南京大学环境学院,污染控制与资源化研究国家重点实验室,南京210093 [2]南京大学环境学院,水处理与水环境修复教育部工程研究中心,南京210093

出　　处：《环境科学》2009年第6期1626-1631,共6页Environmental Science

基　　金：国家重点基础研究发展规划(973)项目(2008CB418003);国家科技支撑计划项目(2006BAJ08B01-02);国家高技术研究发展计划(863)项目(2003AA601100-4)

摘　　要：通过细菌筛选、载体分析、固定化氮循环菌制备,获取了高效固定化氮循环细菌;采用固定化氮循环细菌技术对镇江金山湖富营养化水体进行了治理研究.结果表明,经过固定化氮循环细菌释放试验,金山湖示范工程区水体和水生植物根区氨化细菌、亚硝化细菌、硝化细菌和反硝化细菌数量明显增加,重建的金山湖示范工程区水体水质明显改善,TN、NH4+-N、NO3--N和NO2--N平均比示范工程前分别降低44.70%、67.17%、31.79%和74.21%,氨氮达到Ⅱ类、总氮达到Ⅳ类水标准.固定化氮循环细菌技术对于荒漠化水体生态重建与修复具有重要意义.Nitrogen cycling bacteria, including ammonifying, nitrobacteria, nitrosobacteria and denitrifying bacteria were screened, carrier was made and immobilized nitrogen cycling bacteria （INCB） was prepared. The results demonstrated that ammonifying, nitrobacteria, nitrosobacteria and denitrifying bacteria were increased markedly in the experimental areas and root zone of aquatic plants by releasing of INCB. The results also showed that the average removal efficiencies for total N （TN）, NI4＋ -N, NO3- -N and NO2- -N were 44.70%, 67.17% , 31.79% and 74.21%, respectively. Furthermore, NI4＋ -N, total N （TN） reached the National Standard Ⅱ and Ⅳ for surface water, respectively. With INCB, local lake water quality could improve. Therefore, the technique of INCB could play an important role for remedying and rehabilitating in desertification water.

关 键 词：富营养化 固定化氮循环细菌 氮素去除 金山湖 生态重建 

分 类 号：X171[环境科学与工程—环境科学] X172