| 沸石联合微生物固定化去除微污染水体中氨氮的研究 |
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| 引用本文： | 张晟瑀,林学钰,周兰影,牧辉,高文武,戴宁. 沸石联合微生物固定化去除微污染水体中氨氮的研究[J]. 环境污染与防治, 2009, 31(4) |
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| 作者姓名： | 张晟瑀 林学钰 周兰影 牧辉 高文武 戴宁 |
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| 作者单位： | 吉林大学环境与资源学院,吉林,长春,130026;吉林省产品质量监督检验院,吉林,长春,130022 |
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| 基金项目： | 国家科技支撑计划,吉林省环境保护局资助项目,吉林大学研究生986工程创新基金 |
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| 摘 要： | 将沸石联合经过驯化的活性污泥微生物固定化,通过静态实验.考察了不同粒径沸石及不同组分固定化方法对沸石联合微生物固定化去除氨氮的影响;通过动态实验,考察了沸石联合微生物固定化去除微污染水体中低浓度氨氮的机制.结果表明,活性污泥经过16 d的驯化,氨氮去除率为90%以上;沸石吸附氨氮为快速吸附,粒径<0.5 mm的沸石的吸附容量明显大于其他粒径的沸石;不同组分固定化小球对氨氮的去除效率不同,各组分均有贡献,吸附容量依次为:沸石固定化小球>沸石联合微生物固定化小球>微生物固定化小球;沸石联合微生物固定化去除微污染水体中低浓度氨氮可分为4个阶段,即沸石吸附阶段、吸附饱和及微生物适应阶段、硝化作用明显加强和沸石部分再生阶段、微生物作用良好和沸石进一步再生阶段,最终沸石吸附与生物再生处于良好的动态平衡中,氨氮去除率达到60%左右.
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| 关 键 词： | 沸石 固定化 微生物 氨氮 微污染水 |
Removing ammonia nitrogen from slightly-polluted water by zeolite-microbe combined immobilization technology |
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| Zhang Shengyu,Lin Xueyu,Zhou Lanying,Mu Hui,Gao Wenwu,Dai Ning. Removing ammonia nitrogen from slightly-polluted water by zeolite-microbe combined immobilization technology[J]. Environmental Pollution & Control, 2009, 31(4) |
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| Authors: | Zhang Shengyu Lin Xueyu Zhou Lanying Mu Hui Gao Wenwu Dai Ning |
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| Affiliation: | 1.College of Environment and Resources;Jilin University;Changchun Jilin 130026;2.Institute of Supervision & Inspection on Product Quality of Jilin Province;Changchun Jilin 130022;3.Environment Monitoring Centre Station of Changchun City;Changchun Jilin 130022 |
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| Abstract: | The removal of ammonia nitrogen from slightly polluted water by acclimated microbe and zeolite was studied,and the removal of ammonia nitrogen by microbe was more than 90% after 16 days' acclimation. Adsorption of ammonia nitrogen by zeolite was a fast process,diameter of zeolite had some effect on adsorption efficiency,and a smaller diameter resulted in a better adsorption efficiency. Series of combined granules were prepared by the immobilization of acclimated microbe,zeolite,and zeolite-microbe compound.... |
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| Keywords: | zeolite immobilization microbe ammonia nitrogen slightly-polluted water |
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