Inhibition of PCDD/Fs formation from dioxin precursors by calcium oxide | |
Liu, WB; Zheng, MH; Zhang, B; Qian, Y; Ma, XD; Liu, WX | |
2005 | |
会议名称 | 2nd International Workshop on Strengthening Science-Based Decision Making to Reduce Risks from Persistent Organic Pollutants |
会议日期 | JUN 07-10, 2004 |
会议地点 | Beijing, PEOPLES R CHINA |
关键词 | PCDD/Fs dioxin precursor CaO inhibition incinerator |
英文摘要 | Research aimed at understanding the inhibition effect of CaO on polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) formation form dioxins precursors, such as chlorophenols (CPs) and chlorobenzenes (CBs). The results indicated that a clear dioxin inhibition effect occurred both in open and sealed system when CaO was used. In the open system, PCDDs were the main congeners and the inhibition efficiency was all over 99% in the experiments. In the experiments with CaO, less than 0.1% of the initial PCP was detected in the absorption tube and only about 1% of the initial PCP was examined as calcium pentachlorophenate in the reaction tube. In the sealed system, the inhibition efficiency was over 90% at temperature range between 280 and 450 degrees C when PCP was used as model precursor. When HCB and 2,3,4,5-T4CP replaced PCP, significant inhibition effect was also observed. As CaO has the advantageous properties of non-toxicity and non-volatile nature, it is our hope that the result will contribute to the development of a new technique to cope with the problem of dioxin pollution in MWIs. (C) 2005 Elsevier Ltd. All rights reserved. |
ISSN号 | 0045-6535 |
内容类型 | 会议论文 |
源URL | [http://ir.rcees.ac.cn/handle/311016/24760] ![]() |
专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
推荐引用方式 GB/T 7714 | Liu, WB,Zheng, MH,Zhang, B,et al. Inhibition of PCDD/Fs formation from dioxin precursors by calcium oxide[C]. 见:2nd International Workshop on Strengthening Science-Based Decision Making to Reduce Risks from Persistent Organic Pollutants. Beijing, PEOPLES R CHINA. JUN 07-10, 2004. |
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