| 反硝化菌对烟气汞吸附特性研究 |
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| 引用本文： | 唐美如,黄振山,喻珊,张再利,樊青娟,魏在山. 反硝化菌对烟气汞吸附特性研究[J]. 环境科学学报, 2018, 38(9): 3503-3513 |
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| 作者姓名： | 唐美如 黄振山 喻珊 张再利 樊青娟 魏在山 |
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| 作者单位： | 中山大学环境科学与工程学院广东省环境污染控制与修复技术重点实验室 |
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| 基金项目： | 国家自然科学基金（No.21677178） |
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| 摘 要： | 采用反硝化菌对烟气中Hg~0、Hg~(2+)的吸附特性进行研究,反硝化菌对Hg~0和Hg~(2+)吸附性能良好,在pH为8、初始Hg~0(Hg~(2+))浓度为95.7μg·m-3(0.4μg·L-1)和吸附剂用量为0.35 g·L-1时,Hg~0和Hg~(2+)的吸附效率分别达到43.01%和98.12%.反硝化菌吸附Hg~0的过程遵循拟一级动力学,符合Langmuir等温吸附模型,最大吸附容量为126.1μg·g-1.反硝化菌吸附Hg~(2+)遵循拟二级动力学模型,符合Langmuir等温吸附模型,最大吸附容量为36.23μg·g-1.采用傅里叶红外光谱(FTIR)和热场发射环境扫描电镜-能谱电子背散射衍射系统(EDS)表征吸附前后的反硝化菌,结果表明吸附过程中细菌表面的糖环、磷酸及脂肪化合物基团发挥了吸附汞作用.
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| 关 键 词： | 反硝化菌 烟气汞 Hg0、Hg2+ 生物吸附 |
| 收稿时间： | 2018-03-20 |
| 修稿时间： | 2018-04-25 |
Adsorption characteristics of mercury from flue gas by denitrifying bacteria |
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| TANG Meiru,HUANG Zhenshan,YU Shan,ZHANG Zaili,FAN Qingjuan and WEI Zaishan. Adsorption characteristics of mercury from flue gas by denitrifying bacteria[J]. Acta Scientiae Circumstantiae, 2018, 38(9): 3503-3513 |
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| Authors: | TANG Meiru HUANG Zhenshan YU Shan ZHANG Zaili FAN Qingjuan WEI Zaishan |
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| Affiliation: | Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275 and Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275 |
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| Abstract: | |
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| Keywords: | denitrifying bacteria mercury in flue gas Hg0,Hg2+ biosorption |
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