| 某造纸厂废水中二（口恶）英含量及其电子束辐照降解 |
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| 引用本文： | 青宪,黄锦琼,余小巍,张素坤,杨艳艳,任明忠,温玉龙. 某造纸厂废水中二（口恶）英含量及其电子束辐照降解[J]. 环境科学, 2014, 35(7): 2645-2649 |
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| 作者姓名： | 青宪 黄锦琼 余小巍 张素坤 杨艳艳 任明忠 温玉龙 |
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| 作者单位： | 环境保护部华南环境科学研究所, 国家二（口恶）英监测中心华南分中心, 广州 510655;环境保护部华南环境科学研究所, 国家二（口恶）英监测中心华南分中心, 广州 510655;环境保护部华南环境科学研究所, 国家二（口恶）英监测中心华南分中心, 广州 510655;环境保护部华南环境科学研究所, 国家二（口恶）英监测中心华南分中心, 广州 510655;环境保护部华南环境科学研究所, 国家二（口恶）英监测中心华南分中心, 广州 510655;环境保护部华南环境科学研究所, 国家二（口恶）英监测中心华南分中心, 广州 510655;广州凯恒企业集团有限公司, 广州 510655 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项（PM-ZX021-201211-137）；国家高技术研究发展计划（863）项目（2011AA060605-03） |
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| 摘 要： | 通过对造纸厂废水中2,3,7,8-PCDD/Fs的检测,分析了其在造纸厂废水中的浓度水平与特征,并将不同剂量电子束辐照前后废水中2,3,7,8-PCDD/Fs浓度水平进行对比,初步探讨了电子束辐照造纸废水中2,3,7,8-PCDD/Fs的可行性,降解机制以及降解率.结果表明,该造纸厂未经处理过的原水中2,3,7,8-PCDD/Fs浓度为239 pg·L-1,毒性当量浓度为41.0pg·L-1.通过用30 kGy和60 kGy剂量的电子束辐照处理后,废水中2,3,7,8-PCDD/Fs的浓度均有不同程度地降低,其降解率分别为5.27%和23.6%.
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| 关 键 词： | 造纸厂 废水 电子束辐照 二噁英 降解 |
| 收稿时间： | 2013-12-16 |
| 修稿时间： | 2014-02-28 |
Concentrations, Distribution Characteristics and Electron Beam Radiolysis Degradation of PCDD/Fs in Waste Water from a Paper Mill |
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| QING Xian,HUANG Jin-qiong,YU Xiao-wei,ZHANG Su-kun,YANG Yan-yan,REN Ming-zhong and WEN Yu-long. Concentrations, Distribution Characteristics and Electron Beam Radiolysis Degradation of PCDD/Fs in Waste Water from a Paper Mill[J]. Chinese Journal of Environmental Science, 2014, 35(7): 2645-2649 |
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| Authors: | QING Xian HUANG Jin-qiong YU Xiao-wei ZHANG Su-kun YANG Yan-yan REN Ming-zhong WEN Yu-long |
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| Affiliation: | South China Subcenter of State Environmental Dioxin Monitoring Center, South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;South China Subcenter of State Environmental Dioxin Monitoring Center, South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;South China Subcenter of State Environmental Dioxin Monitoring Center, South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;South China Subcenter of State Environmental Dioxin Monitoring Center, South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;South China Subcenter of State Environmental Dioxin Monitoring Center, South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;South China Subcenter of State Environmental Dioxin Monitoring Center, South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;Guangzhou Kaiheng Enterprises Group Co., Ltd., Guangzhou 510655, China |
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| Abstract: | Concentrations and distribution characteristics of 2,3,7,8-substituted polychlorinated dibenzo-p-dioxins and dibenzofurans (2,3,7,8-PCDD/Fs) were analyzed in waste water from a paper mill. And concentrations of 2,3,7,8-PCDD/Fs in waste water before and after electron beam irradiation with different doses were compared. The feasibility, mechanism and rates of 2,3,7,8-PCDD/Fs degradation were discussed. The PCDD/Fs concentrations and corresponding I-TEQ (toxic equivalent quantity) values were 239 pg·L-1 and 41.0 pg·L-1, respectively, in the waste water. The concentrations of total 2,3,7,8-PCDD/Fs decreased after electron beam radiolysis at a dose of 30 kGy and 60 kGy with degradation rates of 5.27% and 23.6%, respectively. |
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| Keywords: | paper mill waste water electron beam radiolysis PCDD/Fs degradation |
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