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焦化废水外排水的TiO2光催化氧化深度处理及有机物组分分析

肖俊霞 吴贤格

肖俊霞, 吴贤格. 焦化废水外排水的TiO2光催化氧化深度处理及有机物组分分析[J]. 环境科学研究, 2009, 22(9): 1049-1055.
引用本文: 肖俊霞, 吴贤格. 焦化废水外排水的TiO2光催化氧化深度处理及有机物组分分析[J]. 环境科学研究, 2009, 22(9): 1049-1055.
XIAO Jun-xia, WU Xian-ge. TiO2 Photocatalytic Oxidation Treatment and Analysis of Organic Pollutant Components of Discharge Wastewater from Coking Wastewater Treatment Station[J]. Research of Environmental Sciences, 2009, 22(9): 1049-1055.
Citation: XIAO Jun-xia, WU Xian-ge. TiO2 Photocatalytic Oxidation Treatment and Analysis of Organic Pollutant Components of Discharge Wastewater from Coking Wastewater Treatment Station[J]. Research of Environmental Sciences, 2009, 22(9): 1049-1055.

焦化废水外排水的TiO2光催化氧化深度处理及有机物组分分析

基金项目: 广东省自然科学基金项目(8452606101000739)

TiO2 Photocatalytic Oxidation Treatment and Analysis of Organic Pollutant Components of Discharge Wastewater from Coking Wastewater Treatment Station

  • 摘要: 采用TiO2光催化氧化法对焦化废水外排水进行深度处理,考察反应时间,TiO2投加量及废水初始pH对TOC降解的影响,通过GC/MS技术对处理前后废水中的有机物组分进行定性分析,解析废水在TiO2光催化氧化过程中有机物的降解规律. 结果表明:在反应时间为3 h,TiO2投加量为4 g/L,以及不调节废水pH的条件下,焦化废水外排水经TiO2光催化氧化深度处理后TOC的去除率为53.40%,有机物种类由66种降为23种;TiO2光催化氧化法对除多环芳烃外的其他有机物均有较好的去除效果;不同种类有机物在TiO2光催化氧化过程中的降解速率为石油烃>醇、酸、醛等有机物>酚>苯系物>含氮杂环有机物>多环芳烃.

     

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出版历程
  • 收稿日期:  2008-12-29
  • 修回日期:  2009-03-19
  • 刊出日期:  2009-09-25

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