| 人工土壤渗滤的吸附效应 |
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| 引用本文： | 孙宗健,丁爱中,滕彦国.人工土壤渗滤的吸附效应[J].环境科学与技术,2009,32(7). |
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| 作者姓名： | 孙宗健 丁爱中 滕彦国 |
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| 作者单位： | 北京师范大学水科学研究院,水沙科学教育部重点实验室,北京,100875 |
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| 基金项目： | 科技支撑重大项目子课题 |
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| 摘 要： | 实验研究了不同粒径砂砾对颗粒COD的吸附,并在此研究基础上构建人工土壤渗滤系统,着重分析了颗粒COD在系统中的吸附和堵塞。主要结论包括:(1)颗粒直径为0.1～0.3mm的石英砂对于颗粒COD具有很好的去除效果;(2)人工土壤渗滤对颗粒COD去除率为50%～90%之间,最高可达93.66%;(3)在本实验条件下,悬浮物截留、吸附是引起人工土壤渗滤系统堵塞的主导作用,采用掩水期与落干期交替运行方式,可有效解决由此造成的堵塞问题,保证系统的长期稳定运行。
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| 关 键 词： | 土壤渗滤 废水处理 吸附 砂砾 |
Adsorption in Constructed Soil Infiltration |
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| SUN Zong-jian,DING Ai-zhong,TENG Yan-guo.Adsorption in Constructed Soil Infiltration[J].Environmental Science and Technology,2009,32(7). |
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| Authors: | SUN Zong-jian DING Ai-zhong TENG Yan-guo |
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| Abstract: | Clogging often occurs in the constructed soil infiltration system.Adsorption of particle COD was discussed,with focus on the adsorption and clogging in shallow part of the system.Results showed that quarts of 0.1～0.3mm in diameter have sound elimination effect to COD.The system can adsorb 50%～90% of particle COD,with 93.66% at maximum.It was found that SS interception and adsorption contributes a lot to the clogging,and flooding and drying working fashion was effective to solve the problem and ensure the stable and long term operation of the system. |
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| Keywords: | soil infiltration wastewater treatment adsorption clogging |
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