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HMP和SDS在KMnO4氧化水溶相PCE中的联合效应

窦 颖 邱兆富 胡 林 吕树光 隋 倩 陈梦帆

窦 颖, 邱兆富, 胡 林, 吕树光, 隋 倩, 陈梦帆. HMP和SDS在KMnO4氧化水溶相PCE中的联合效应[J]. 环境科学研究, 2014, 27(5): 534-539. doi: 10.13198/j.issn.1001-6929.2014.05.12
引用本文: 窦 颖, 邱兆富, 胡 林, 吕树光, 隋 倩, 陈梦帆. HMP和SDS在KMnO4氧化水溶相PCE中的联合效应[J]. 环境科学研究, 2014, 27(5): 534-539. doi: 10.13198/j.issn.1001-6929.2014.05.12
DOU Ying, QIU Zhao-fu, HU Lin, L Shu-guang, SUI Qian, CHEN Meng-fan. Co-Effects of HMP and SDS on PCE Oxidation Performance by KMnO4in Aqueous Solutions[J]. Research of Environmental Sciences, 2014, 27(5): 534-539. doi: 10.13198/j.issn.1001-6929.2014.05.12
Citation: DOU Ying, QIU Zhao-fu, HU Lin, L Shu-guang, SUI Qian, CHEN Meng-fan. Co-Effects of HMP and SDS on PCE Oxidation Performance by KMnO4in Aqueous Solutions[J]. Research of Environmental Sciences, 2014, 27(5): 534-539. doi: 10.13198/j.issn.1001-6929.2014.05.12

HMP和SDS在KMnO4氧化水溶相PCE中的联合效应

doi: 10.13198/j.issn.1001-6929.2014.05.12
基金项目: 上海市自然科学基金面上项目(12ZR1408000);国家环境保护公益性行业科研专项(201109013)

Co-Effects of HMP and SDS on PCE Oxidation Performance by KMnO4in Aqueous Solutions

  • 摘要: 利用KMnO4原位化学氧化法处理污染地下水中的氯代烯烃已被证实有效可行,但是反应中产生的MnO2沉淀会影响修复效果,延长修复时间. 采用KMnO4氧化法处理水溶相的PCE(四氯乙烯),研究了添加HMP(六偏磷酸钠)和SDS(十二烷基磺酸钠)对该反应的联合效应. 结果表明,离子强度对MnO2沉淀的生成影响显著,离子强度越高,MnO2沉淀生成得越快. 在20℃, ρ(PCE)初始值为20mg/L,n(KMnO4)∶n(PCE)为15∶1,离子强度为0.1mol/L的条件下,单独添加HMP可减少反应过程中MnO2沉淀的产生,ρ(HMP)为0.1g/L的条件下,24h内没有产生MnO2沉淀;单独添加SDS可增加Cl-生成量,在ρ(SDS)为1.0g/L的条件下,Cl-生成量增加了8.2%,但会增大MnO2沉淀的生成速率;在同时添加HMP〔(ρ(HMP)为0.1g/L)〕和SDS〔(ρ(SDS)为1.0g/L)〕的条件下,Cl-生成量增加了7.5%,并且24h内没有产生MnO2沉淀,表明二者同时添加既可提高PCE的去除率又可减缓MnO2沉淀的生成.

     

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出版历程
  • 收稿日期:  2013-07-11
  • 修回日期:  2014-02-17
  • 刊出日期:  2014-05-25

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