固定化微生物法去除模拟渗滤液中氨氮的研究

温丽丽; 倪晋仁; 叶正芳; 宋永会; 袁鹏; 彭剑峰

中国环境科学研究院，北京 100012； 2. 环境保护部环境规划院，北京 100012

北京大学环境工程系，北京 100871； 4. 教育部水沙科学重点实验室，北京 100871

基金项目:

中图分类号: X703

Removal of ammonia nitrogen from a synthetic landfill leachate by immobilized microorganism system

Chinese Research Academy of Environmental Sciences， Beijing 100012，China；2. Chinese Academy for Environmental Planning， Beijing 100012，China

Department of Environmental Engineering， Peking University， Beijing 100871，China；4. The Key Laboratory of Water and Sediment Sciences， MOE， Beijing 100871，China

Fund Project:

摘要: 采用固定化微生物曝气生物滤池（I-BAF）技术成功处理了模拟垃圾渗滤液，探讨了pH和溶解氧（DO）对系统脱氮性能的影响。结果表明，固定化微生物曝气生物滤池反应系统启动迅速，运行稳定，可以有效去除模拟垃圾渗滤液中的有机物和氨氮，其去除率分别达到97.1%和99.9%。在pH为7.5~8.5之间，DO 4.0 mg/L左右的条件下对模拟垃圾渗滤液中氮的去除最为有利，同步硝化反硝化效率以及总氮去除率均达到最高，分别为96.2%和94.3%。这主要是由于I-BAF系统中大孔载体提供了厌氧兼氧好氧的微环境，使硝化和反硝化反应在同一个反应器内发生，共同作用实现模拟垃圾渗滤液中总氮的去除。

Abstract: A biological treatment with immobilized microorganism was successfully developed in a biological aerated filter (I-BAF) to treat synthetic landfill leachate. The regulatory effects of pH and dissolved oxygen (DO) on nitrogen removal were investigated. It was demonstrated that the I-BAF system started up quickly and it was very efficient for COD and nitrogen removal from synthetic landfill leachate with efficiencies of 97.1% and 99.9%. When pH and DO were controlled at 7.5~8.5 and 4.0 mg/L， respectively， maximum of total nitrogen removal rate and SND arrived at 94.3% and 96.2， respectively， with little accumulation of NO-2-N and NO-3-N. It is attributed that the macro-porous carriers used in this system provide an anaerobic-anoxic-aerobic micro-environment for aerobic oxidizing bacteria， nitrifiers and denitrifiers simultaneously occur in the same system.

Key words:

immobilized microorganism biological aerated filter /
nitrogen removal /
pH /
DO

固定化微生物法去除模拟渗滤液中氨氮的研究

1. 中国环境科学研究院，北京 100012； 2. 环境保护部环境规划院，北京 100012

3. 北京大学环境工程系，北京 100871； 4. 教育部水沙科学重点实验室，北京 100871

收稿日期: 2010-08-16

基金项目:

关键词:

Removal of ammonia nitrogen from a synthetic landfill leachate by immobilized microorganism system

1. Chinese Research Academy of Environmental Sciences， Beijing 100012，China；2. Chinese Academy for Environmental Planning， Beijing 100012，China

3. Department of Environmental Engineering， Peking University， Beijing 100871，China；4. The Key Laboratory of Water and Sediment Sciences， MOE， Beijing 100871，China

Received Date: 2010-08-16

Fund Project:

Keywords:

immobilized microorganism biological aerated filter /
nitrogen removal /
pH /
DO

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