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UV/Fe(Ⅲ)-富马酸盐体系对印染废水中橙黄Ⅱ的降解效果

孙 杰 曾 沛 张 晗

孙 杰, 曾 沛, 张 晗. UV/Fe(Ⅲ)-富马酸盐体系对印染废水中橙黄Ⅱ的降解效果[J]. 环境科学研究, 2015, 28(1): 82-87.
引用本文: 孙 杰, 曾 沛, 张 晗. UV/Fe(Ⅲ)-富马酸盐体系对印染废水中橙黄Ⅱ的降解效果[J]. 环境科学研究, 2015, 28(1): 82-87.
SUN Jie, ZENG Pei, ZHANG Han. Decolorization of Orange Ⅱ in Fe(Ⅲ)-Fumarate System Under Ultraviolet Radiation[J]. Research of Environmental Sciences, 2015, 28(1): 82-87.
Citation: SUN Jie, ZENG Pei, ZHANG Han. Decolorization of Orange Ⅱ in Fe(Ⅲ)-Fumarate System Under Ultraviolet Radiation[J]. Research of Environmental Sciences, 2015, 28(1): 82-87.

UV/Fe(Ⅲ)-富马酸盐体系对印染废水中橙黄Ⅱ的降解效果

基金项目: 湖北省自然科学基金项目(2008CDB400);武汉市科学技术计划项目(201051824567)

Decolorization of Orange Ⅱ in Fe(Ⅲ)-Fumarate System Under Ultraviolet Radiation

  • 摘要: 为研究Fe(Ⅲ)-富马酸盐体系对染料废水的降解效果,在紫外光照射下进行Fe(Ⅲ)-富马酸盐体系中橙黄Ⅱ的光氧化反应试验,考察溶液中初始c〔Fe(Ⅲ)〕、ρ(橙黄Ⅱ)和c(富马酸钠)及溶液pH对橙黄Ⅱ去除率的影响. 结果表明,当溶液pH为3~7时,Fe(Ⅲ)-富马酸盐体系对橙黄Ⅱ的去除率随着溶液pH的减小而增大. 当溶液中c〔Fe(Ⅲ)〕为25 μmol/L、ρ(橙黄Ⅱ)为25 mg/L、c(富马酸钠)为250 μmol/L、pH为3时、光照反应50 min后橙黄Ⅱ的去除率接近于100%,TOC去除率接近60%. 橙黄Ⅱ的去除率随溶液中初始c〔Fe(Ⅲ)〕的增加而逐渐升高,而初始c(富马酸钠)的变化对橙黄Ⅱ的去除率影响不显著. 动力学分析表明,橙黄Ⅱ光降解过程符合准一级动力学方程. 试验采用荧光法验证了体系反应过程中·OH的产生,有助于对橙黄Ⅱ降解机理的进一步研究.

     

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出版历程
  • 收稿日期:  2014-03-10
  • 修回日期:  2014-08-14
  • 刊出日期:  2015-01-25

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