| ZVI固定床-SBR耦合工艺强化氯代硝基苯的降解 |
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| 引用本文： | 林海转,徐向阳,杨燕妮,黄可谈,朱亮.ZVI固定床-SBR耦合工艺强化氯代硝基苯的降解[J].环境科学学报,2008,28(9):1777-1784. |
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| 作者姓名： | 林海转 徐向阳 杨燕妮 黄可谈 朱亮 |
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| 作者单位： | 浙江大学环境工程系,杭州,310029 |
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| 摘 要： | 研究了零价铁(ZVI)固定床-序批式生物反应器(SBR)耦合工艺对2-氯硝基苯(2-CINB)转化与降解强化作用.结果表明,ZVI固定床可稳 定还原转化2-CINB为2-氯苯胺(2-CIAn),表面积归一化速率常数(Ksa)为(3.20±0.35)×10-2L·m-2·h-1;ZVI固定床出水作为SBR进水,在HRT为20 h、2-ClAn负荷为3.6～111.8 g·m-3·d-1、COD负荷(外加碳源)为130.9～854.4 g·m-3 d-1条件下稳定运行SBR,其2-ClAn去除率 达99.9%以上,COD去除率达92.3%±5.5%.2-ClAn污泥比降解速率达0.31 g·g-1·d-1;耦合系统在不添加其它碳源、氮源条件下,TOC去除率达95.4%,总氮去除率为46.1%.而以未经ZVI预处理的2-CINB为进水的SBR对照实验发现,2-ClNB去除率仅为25.3%±10.2%.主要以挥发形式去除.研究结果揭示,ZVI-SBR耦合工艺可强化氯代硝基苯类污染物的降解与矿化.
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| 关 键 词： | 氯代硝基苯 零价铁 生物降解 耦合 |
| 收稿时间： | 8/21/2007 7:25:04 PM |
| 修稿时间： | 3/18/2008 6:26:53 PM |
Reductive transformation and biodegradation of 2-chloronitrobenzene with a column of zero-valent iron coupled with a sequencing batch reactor |
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| LIN Haizhuan,XU Xiangyang,YANG Yanni,HUANG Ketan and ZHU Liang.Reductive transformation and biodegradation of 2-chloronitrobenzene with a column of zero-valent iron coupled with a sequencing batch reactor[J].Acta Scientiae Circumstantiae,2008,28(9):1777-1784. |
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| Authors: | LIN Haizhuan XU Xiangyang YANG Yanni HUANG Ketan and ZHU Liang |
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| Institution: | Department of Environmental Engineering, Zhejiang University, Hangzhou 310029,Department of Environmental Engineering, Zhejiang University, Hangzhou 310029,Department of Environmental Engineering, Zhejiang University, Hangzhou 310029,Department of Environmental Engineering, Zhejiang University, Hangzhou 310029 and Department of Environmental Engineering, Zhejiang University, Hangzhou 310029 |
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| Abstract: | |
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| Keywords: | chloronitrobenzene zero-valent iron biodegradation coupling process |
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