| pH对生物滤池处理含H_2S和NH_3混合恶臭气体的影响 |
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| 引用本文： | 刘建伟,马文林,王敏.pH对生物滤池处理含H_2S和NH_3混合恶臭气体的影响[J].环境污染与防治,2010,32(9). |
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| 作者姓名： | 刘建伟 马文林 王敏 |
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| 作者单位： | 北京建筑工程学院环境与能源工程系,城市雨水系统与水环境省部共建教育部重点实验室,北京,100044 |
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| 基金项目： | 国家自然科学基金资助项目，北京建筑工程学院博士科研启动基金资助项目 |
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| 摘 要： | 研究了pH对生物滤池处理含H2S和NH3混合恶臭气体的影响,以及不同pH下的物质转化情况和去除机制。结果表明,不同pH下,生物滤池对H2S和NH3的去除率是不同的。在强酸性(pH为2左右)和中性(pH为7左右)条件下,H2S均有较好的去除效果,这分别归于嗜酸性硫细菌和非嗜酸性硫细菌的生物降解作用。低pH下,NH3的去除归于化学中和作用;中性(pH为7左右)条件下,NH3有较高的去除率,主要依靠生物硝化作用。通过考察pH对生物滤池处理效果的影响,确定了生物滤池处理含H2S和NH3混合恶臭气体的pH控制条件和去除机制,为恶臭气体生物处理工艺的选择提供依据。
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| 关 键 词： | 生物滤池 生物硝化作用 |
Effect of pH on the performance of the biofilter for sulfide hydrogen and ammonia removal |
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| LIU Jianwei,MA Wenlin,WANG Min.Effect of pH on the performance of the biofilter for sulfide hydrogen and ammonia removal[J].Environmental Pollution & Control,2010,32(9). |
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| Authors: | LIU Jianwei MA Wenlin WANG Min |
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| Institution: | LIU Jianwei,MA Wenlin,WANG Min.(Key Laboratory of Urban Stormwater System and Water Environment,Ministry of Education,School of Environment and Energy Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044) |
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| Abstract: | Batch treatment of H2S and NH3 containing odorous gases in self-made biofilter was performed to determine the effect of pH on performance of the biofilter.The substance transformations of H2S and NH3 in the biofilter and microbial characteristics were investigated.Results showed that the feed pH had the great influence on H2S and NH3 removal efficiency,H2S can be efficiently removed both at strong acid (pH=2) and neutral (pH=7) conditions,which were attributed to the biodegration of Acidophilic thiobacilli ... |
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| Keywords: | H2S NH3 |
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