| Removal of PCDD/Fs and PCBs from flue gas using a pilot gas cleaning system |
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| 作者姓名： | Xiaoqing Lin Yuqi Jin Hailong Wu Tong Chen Xiaodong Li Shengyong Lu Xuguang Jiang Jianhua Yan |
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| 作者单位： | State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University;Environment Protection Bureau of Zhoushan |
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| 基金项目： | supported by the Basic Research Development Program （973） of China （No. 2011CB201500）; the National High Technology Research and Development Key Program of China （No. 2012AA062803）; the Public Welfare Projects for Environmental Protection （No. 201209022）; the Fundamental Research Funds for the Central Universities （No. 2012QNA4009） |
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| 摘 要： | A 100 Nm3 /hr capacity pilot scale dual bag filter (DBF) system was tested on the flue gas from an actual hazardous waste incinerator (HWI), the removal efficiency of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) was also studied. The first filter collected most of the fly ash and associated chlorinated organic; then activated carbon (AC) was injected and used to collect phase chlorinated organic from the gas. Concentrations of PCDD/Fs and PCBs after the DBF system were 0.07 and 0.01 ng TEQ/Nm3 , respectively, which were both far below the national emission standard. Comparing with the original single bag filter system, the PCDD/Fs concentration dropped a lot from 0.36 to 0.07 ng TEQ/Nm3 . Increasing AC feeding rate enhanced their collection efficiency, yet reduced the AC utilization efficiency, and it still needs further study to select an appropriate feeding rate in the system. These results will be useful for industrial application and assist in controlling emissions of PCDD/Fs and other persistent organic pollutions from stationary sources in China.
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| 关 键 词： | PCDD/Fs PCBs dual bag filter activated carbon |
| 收稿时间： | 15 January 2013 |
| 修稿时间： | 19 March 2013 |
Removal of PCDD/Fs and PCBs from flue gas using a pilot gas cleaning system |
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| Xiaoqing Lin,Yuqi Jin,Hailong Wu,Tong Chen,Xiaodong Li,Shengyong Lu,Xuguang Jiang,Jianhua Yan.Removal of PCDD/Fs and PCBs from flue gas using a pilot gas cleaning system[J].Journal of Environmental Sciences,2013,25(9):1833-1840. |
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| Authors: | Xiaoqing Lin Yuqi Jin Hailong Wu Tong Chen Xiaodong Li Shengyong Lu Xuguang Jiang and Jianhua Yan |
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| Institution: | [1]State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China. [2]Environment Protection Bureau of Zhoushan, Zhoushan 316021, China |
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| Abstract: | A 100 Nm3/hr capacity pilot scale dual bag filter (DBF) system was tested on the flue gas from an actual hazardous waste incinerator (HWI), the removal efficiency of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) was also studied. The first filter collected most of the fly ash and associated chlorinated organic; then activated carbon (AC) was injected and used to collect phase chlorinated organic from the gas. Concentrations of PCDD/Fs and PCBs after the DBF system were 0.07 and 0.01 ng TEQ/Nm3 respectively, which were both far below the national emission standard. Comparing with the original single bag filter system, the PCDD/Fs concentration dropped a lot from 0.36 to 0.07 ng TEQ/Nm3. Increasing AC feeding rate enhanced their collection efficiency, yet reduced the AC utilization efficiency, and it still needs further study to select an appropriate feeding rate in the system. These results will be useful for industrial application and assist in controlling emissions of PCDD/Fs and other persistent organic pollutions from stationary sources in China. |
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| Keywords: | PCDD/Fs PCBs dual bag filter activated carbon |
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