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响应面法优化O3/H2O2/UV工艺降解1,2,4-三氯苯

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孙云娜, 陆桂英, 魏东洋, 贾晓珊, 李杰, 许振成. 响应面法优化O3/H2O2/UV工艺降解1,2,4-三氯苯[J]. 环境化学, 2012, 31(11): 1697-1704.
引用本文: 孙云娜, 陆桂英, 魏东洋, 贾晓珊, 李杰, 许振成. 响应面法优化O3/H2O2/UV工艺降解1,2,4-三氯苯[J]. 环境化学, 2012, 31(11): 1697-1704.
shu
SUN Yunna, LU Guiying, WEI Dongyang, JIA Xiaoshan, LI Jie, XU Zhencheng. Optimizing the degradation of 1,2,4-trichlorobenzene by O3/H2O2/UV using the response surface methodology[J]. Environmental Chemistry, 2012, 31(11): 1697-1704.
Citation: SUN Yunna, LU Guiying, WEI Dongyang, JIA Xiaoshan, LI Jie, XU Zhencheng. Optimizing the degradation of 1,2,4-trichlorobenzene by O3/H2O2/UV using the response surface methodology[J]. Environmental Chemistry, 2012, 31(11): 1697-1704.
shu

响应面法优化O3/H2O2/UV工艺降解1,2,4-三氯苯

  • 1.

    环境保护部华南环境科学研究所, 广州, 510655;

  • 2.

    兰州交通大学环境与市政工程学院, 兰州, 730070;

  • 3.

    东莞市环境保护局, 东莞, 523000;

  • 4.

    中山大学环境科学与工程学院, 广州, 510275

  • 基金项目:

    国家"水体污染控制与治理"科技重大专项(2008ZX07211-003)资助.

Optimizing the degradation of 1,2,4-trichlorobenzene by O3/H2O2/UV using the response surface methodology

  • 1.

    South China Institute of Environmental Science, Guangzhou, 510655, China;

  • 2.

    School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China;

  • 3.

    Environmental Protection Bureau of DongGuan; Dongguan, 523000, China;

  • 4.

    School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China

  • Fund Project:

  • 摘要: 研究了O3/H2O2/UV臭氧光催化工艺对水中TCB的降解效果,考察了TCB初始浓度、O3转化率、H2O2投加量及pH值对TCB降解效果的影响及其动力学分析,并通过响应面分析法对实验条件进行了优化组合.结果表明,O3/H2O2/UV对TCB的降解均遵循准一级反应动力学,其中条件优化组合后的反应动力学方程为y=0.0219x-0.0127,准一级反应速率常数为0.0219 min-1,所得线性相关系数为0.983.响应面分析结果表明,在TCB初始浓度0.3 mg·L-1、pH=10.1、H2O2投加量0.33 mmol·L-1、O3转化率99.75%的最优工艺组合条件下,TCB的3次平均去除率为94.2%,与预测值95.0%吻合度较高.
    Abstract: In this paper, the degradation of 1,2,4-trichlorobenzene (TCB) in water was studied using ozone-hydrogen peroxide-photocatalytic technology (O3/H2O2/UV), and the effects of pH, TCB initial concentration, O3 conversion, H2O2 dosage on TCB degradation and its dynamics were examined and analysed. Response surface methodology was employed for the optimization of degradation conditions by O3/H2O2/UV. The results showed that the degradation process was in line with pseudo-first order reaction kinetics and the kinetic equation was y=0.0219x-0.0127, pseudo-first order rate constant was 0.0219 min-1, with a linear correlation coefficient of 0.983. The response surface methodology analysis results showed that the optimal operating conditions were as follows: TCB initial concentration of 0.3 mg稬-1, pH=10.1, H2O2 dosage of 0.33 mmol稬-1 and O3 conversion rate of 99.8%. Under these conditions, the average removal rate of TCB was 94.2%, which matched well with the predicted value of 95.0%.
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  • 收稿日期:  2012-01-15
孙云娜, 陆桂英, 魏东洋, 贾晓珊, 李杰, 许振成. 响应面法优化O3/H2O2/UV工艺降解1,2,4-三氯苯[J]. 环境化学, 2012, 31(11): 1697-1704.
引用本文: 孙云娜, 陆桂英, 魏东洋, 贾晓珊, 李杰, 许振成. 响应面法优化O3/H2O2/UV工艺降解1,2,4-三氯苯[J]. 环境化学, 2012, 31(11): 1697-1704.
shu
SUN Yunna, LU Guiying, WEI Dongyang, JIA Xiaoshan, LI Jie, XU Zhencheng. Optimizing the degradation of 1,2,4-trichlorobenzene by O3/H2O2/UV using the response surface methodology[J]. Environmental Chemistry, 2012, 31(11): 1697-1704.
Citation: SUN Yunna, LU Guiying, WEI Dongyang, JIA Xiaoshan, LI Jie, XU Zhencheng. Optimizing the degradation of 1,2,4-trichlorobenzene by O3/H2O2/UV using the response surface methodology[J]. Environmental Chemistry, 2012, 31(11): 1697-1704.
shu

响应面法优化O3/H2O2/UV工艺降解1,2,4-三氯苯

  • 1.  环境保护部华南环境科学研究所, 广州, 510655;
  • 2.  兰州交通大学环境与市政工程学院, 兰州, 730070;
  • 3.  东莞市环境保护局, 东莞, 523000;
  • 4.  中山大学环境科学与工程学院, 广州, 510275
  • 收稿日期:  2012-01-15
基金项目:

国家"水体污染控制与治理"科技重大专项(2008ZX07211-003)资助.

摘要: 研究了O3/H2O2/UV臭氧光催化工艺对水中TCB的降解效果,考察了TCB初始浓度、O3转化率、H2O2投加量及pH值对TCB降解效果的影响及其动力学分析,并通过响应面分析法对实验条件进行了优化组合.结果表明,O3/H2O2/UV对TCB的降解均遵循准一级反应动力学,其中条件优化组合后的反应动力学方程为y=0.0219x-0.0127,准一级反应速率常数为0.0219 min-1,所得线性相关系数为0.983.响应面分析结果表明,在TCB初始浓度0.3 mg·L-1、pH=10.1、H2O2投加量0.33 mmol·L-1、O3转化率99.75%的最优工艺组合条件下,TCB的3次平均去除率为94.2%,与预测值95.0%吻合度较高.

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