| 可渗透反应墙技术的水质净化特性 |
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| 引用本文： | 骆其金,谌建宇,许振成,虢清伟.可渗透反应墙技术的水质净化特性[J].环境污染与防治,2010,32(1). |
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| 作者姓名： | 骆其金 谌建宇 许振成 虢清伟 |
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| 作者单位： | 环境保护部华南环境科学研究所,广东广州,510655 |
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| 基金项目： | 国际科技合作计划项目(No.2006DFB91550);;国家高技术研究发展计划(“863计划”)项目(No.2005AA601010-03);;广东省科技计划项目(No.2005B33301006) |
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| 摘 要： | 通过中试研究考察了可渗透反应墙(PRB)技术的动态水质净化特性。结果表明:(1)在动态条件下,PRB中试系统中COD、NH4+-N、NO3--N、TN、TP去除率随水力停留时间(HRT)的延长而增加。当HRT为7.00h时,COD、NH4+-N、TN、TP去除率分别为59.4%、26.9%、76.6%、62.2%、82.0%。HRT的延长使难生物降解的有机物也得到部分降解,PRB中试系统中铁屑及新生态的H]、铁离子的氧化还原作用可以大幅度提高水的可生化性。(2)PRB技术对COD、NH4+-N、TN、TP的去除主要发生在反应区前半段,而且PRB中试系统中COD、NH4+-N、TN、TP沿程的变化情况可用指数方程来描述,动态模型预测曲线拟合较好。同时,对于实际PRB技术工程,PRB技术选择适当的反应介质及介质配比是关键环节。
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| 关 键 词： | 可渗透反应墙 河道污水 水环境修复 |
Characteristic of permeable reactive barrier (PRB) for water purification |
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| Luo Qijin,Chen Jianyu,Xu Zhencheng,Guo Qingwei.Characteristic of permeable reactive barrier (PRB) for water purification[J].Environmental Pollution & Control,2010,32(1). |
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| Authors: | Luo Qijin Chen Jianyu Xu Zhencheng Guo Qingwei |
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| Institution: | South China Institute of Environmental Sciences;Ministry of Environmental Protection;Guangzhou Guangdong 510655 |
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| Abstract: | Pilot-scale experiment was carried out for purification of polluted river water by permeable reactive barrier (PRB) technology,and its dynamic purification characteristic was studied. The results showed that the purification efficiency of PRB was increased with the increasing of hydraulic retention time (HRT),with the HRT of 7.00 h,removal efficiencies of COD,NH+4-N,NO-3-N,TN and TP were 59.4%,26.9%,76.6%,62.2% and 82.0% respectively. Concentrations change of some pollutants,such as COD,NH+4-N,TN and TP,alo... |
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| Keywords: | permeable reactive barrier (PRB) polluted river water water environment remediation |
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