| 复合催化膜生物反应器处理一氧化氮废气研究 |
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| 引用本文： | 黎宝仁,陈洲洋,王剑斌,张再利,樊青娟,魏在山.复合催化膜生物反应器处理一氧化氮废气研究[J].环境科学,2016,37(3):847-853. |
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| 作者姓名： | 黎宝仁 陈洲洋 王剑斌 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, 广州 510275;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, 广州 510275;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, 广州 510275;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, 广州 510275;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, 广州 510275;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, 广州 510275 |
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| 基金项目： | 国家自然科学基金项目(21377171);中央高校基本科研业务费专项 |
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| 摘 要： | 采用溶胶-凝胶法以聚砜(PSF)中空纤维膜为载体制备了Fe-Ti O_2/PSF复合催化膜,以此构建新型复合催化膜生物反应器(HCMBR),实现膜催化与硝化反硝化耦合烟气脱硝,进一步提高NO去除能力.采用Fe-Ti O_2/PSF复合催化膜生物反应器(HCMBR)处理一氧化氮废气,实现了180 d长时间高效稳定运行,NO去除效率可达93.2%,去除能力可达167.1g·(m~3·h)~(-1).适宜运行条件为:气体停留时间9 s、自然光光照强度670 lx,p H为6.8~7.2,n C/n N=3.7.Fe-Ti O_2/PSF复合催化膜加入,复合催化膜生物反应器去除NO的效率比膜生物反应器提高了1.4%~13%,在Fe-Ti O_2/PSF复合催化膜附着稳定的生物膜后,复合催化膜生物反应器去除NO的效率比湿式膜催化反应器提高了59.5%~66%.
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| 关 键 词： | 复合催化膜生物反应器 生物降解 光催化 一氧化氮 硝化反硝化 |
| 收稿时间： | 2015/7/25 0:00:00 |
| 修稿时间： | 2015/10/14 0:00:00 |
Nitric Oxide Removal with a Fe-TiO2/PSF Hybrid Catalytic Membrane Bioreactor |
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| LI Bao-ren,CHEN Zhou-yang,WANG Jian-bin,ZHANG Zai-li,FAN Qing-juan and WEI Zai-shan.Nitric Oxide Removal with a Fe-TiO2/PSF Hybrid Catalytic Membrane Bioreactor[J].Chinese Journal of Environmental Science,2016,37(3):847-853. |
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| Authors: | LI Bao-ren CHEN Zhou-yang WANG Jian-bin ZHANG Zai-li FAN Qing-juan and WEI Zai-shan |
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| Institution: | Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China;Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China;Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China;Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China;Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China;Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China |
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| Abstract: | The Fe-doped titanium dioxide (Fe-TiO2) was prepared by the sol-gel method and was loaded on polysulfone (PSF) hollow fiber membrane. A novel Fe-TiO2/PSF hybrid catalytic membrane biofilm reactor (HCMBfR) was investigated for nitric oxide removal, to further improve the elimination capacity. HCMBfR exhibited a good stability in the 180-day operation period, the NO removal efficiency was up to 93.2% and the maximum elimination capacity reached 167.1 g ·(m3 ·h)-1. The additional use of the biofilm to wet Fe-TiO2/PSF membrane catalysis reactor led to the enhancement of NO removal efficiency from 59.5% to 66%. The NO removal efficiency in the intimate coupling of Fe-TiO2/PSF hybrid catalytic membrane and biofilm reactor (HCMBfR) increased from 1.4% to 13% as compared to that of the membrane biofilm reactor (MBfR) only. The optimal illumination intensity, gas residence time, pH and nC/nN were 670 lx, 9 s, 6.8-7.2 and 3.7, respectively. |
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| Keywords: | hybrid catalytic membrane biofilm reactor biodegradation photocatalytic oxidation NO nitrification/denitrification |
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