| γ-射线辐照-H_2O_2联合技术降解3-氯酚的研究 | |
| 胡俊 ; 王建龙 ; HU Jun ; WANG Jian-long | |
| 2010-06-04 ; 2010-06-04 | |
| 关键词 | 3-氯酚 优先污染物 γ-辐射 辐射降解 协同效应 3-chlorophenol priority pollutant γ-radiation radiolysis synergic effect X703.1 |
| 其他题名 | Degradation of 3-Chlorophenol in Aqueous Solution by Combined Process of γ-Radiation and H_2O_2 |
| 中文摘要 | 利用60Coγ-射线辐照3-氯酚(3-CP)水溶液,研究了其辐射降解特性.通过测量辐射后3-氯酚的去除率、紫外-可见光谱、脱氯率、总有机碳(TOC)去除率等,探讨了吸收剂量、氯酚初始浓度、H2O2加入对氯酚降解效果的影响,并初步探讨了氯酚降解动力学特性.结果表明,当3-氯酚浓度为10 mg.L-1,辐射剂量为2 kGy时,脱氯率可达100%,TOC去除率达53%;当辐射剂量提高到8 kGy时,3-氯酚可完全矿化,TOC去除率达100%.3-氯酚的辐照降解过程可用一级反应动力学方程拟合.氯酚单独γ-辐射以及辐照/H2O2联合处理的一级反应动力学常数k分别为0.279 h-1和0.542 h-1.; The radiolytical degradation of 3-chlorophenol(3-CP) in aqueous solution was investigated using γ-radiation and γ-radiation/ hydrogen peroxide(H_2O_2) combined process.The effect of absorbed dose,initial concentration of 3-CP and addition of H_2O_(2)on pollutant degradation,dechlorination and the degree of mineralization was studied by measuring the removal efficiency of 3-CP,the variation of total organic carbon (TOC),the dechlorination rate,and the absorbance spectrum of vis-UV.The kinetics of 3-CP degradation was also discussed.The results showed that when 3-CP concentration was 10(mg·L~(-1)) and the absorbed dose was 2 kGy,the dechlorination rate reached 100%,the TOC removal efficiency was 53%;when the absorbed dose increased to 8 kGy,3-CP could be completely mineralized and the TOC removal efficiency reached 100%.The radiolysis of 3-CP could be described by one-order reaction kinetics,there existed synergic effect for combined process of γ-irradiation/hydrogen peroxide for 3-CP degradation.The rate constant of 3-CP degradation for γ-radiation and γ-radiation/hydrogen peroxide combined process was 0.279 h~(-1) and 0.542 h~(-1),respectively.; 国家自然科学基金项目(10876016) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/35714]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 胡俊,王建龙,HU Jun,等. γ-射线辐照-H_2O_2联合技术降解3-氯酚的研究[J],2010, 2010. |
| APA | 胡俊,王建龙,HU Jun,&WANG Jian-long.(2010).γ-射线辐照-H_2O_2联合技术降解3-氯酚的研究.. |
| MLA | 胡俊,et al."γ-射线辐照-H_2O_2联合技术降解3-氯酚的研究".(2010). |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论