工业水处理 ›› 2006, Vol. 26 ›› Issue (6): 33-36. doi: 10.11894/1005-829x.2006年.26(06).33

• 试验研究 • 上一篇    下一篇

UV-TiO2-Fenton光催化降解敌百虫农药废水的研究

彭延治1, 徐明芳2, 曾常军3, 陈心满1   

  1. 1. 暨南大学水生研究所, 广东, 广州 510632;
    2. 暨南大学生物工程系, 广东, 广州 510632;
    3. 广州建兴光电广州有限公司, 广东, 广州 510663
  • 收稿日期:2006-01-25 出版日期:2006-06-20 发布日期:2010-10-01
  • 作者简介:彭延治(1978- ),2006 年毕业于暨南大学,硕士。E-mail: xmxmxm2004@yahoo.com.cn。
  • 基金资助:

    广东省科技攻关资助项目(2KM02501G)

Study on the photocatalytic degradation of trichlorfon pesticides wastewater by using UV-TiO2-Fenton reagent

Peng Yanzhi1, Xu Mingfang2, Zeng Changjun3, Chen Xinman1   

  1. 1. Hydrobiological Research Center, Jinan University, Guangzhou 510632, China;
    2. Department of Bioengineering, Jinan University, Guangzhou 510632, China;
    3. LITC-ON OPTO TECH(GZ) Co., Ltd., Guangzhou 510663, China
  • Received:2006-01-25 Online:2006-06-20 Published:2010-10-01

摘要:

研究了UV-TiO2-Fenton体系光催化降解敌百虫农药。结果表明:UV-TiO2-Fenton有极强的氧化性,能有效地降解敌百虫农药。当敌百虫农药浓度为0.1 mmol/L,反应液起始pH为3.25,通空气量为2 L/min,TiO2质量浓度为2 g/L,Fe3+用量为0.10 mmol/L,H2O2用量为2 mmol/L,光照时间为2 h时,敌百虫农药有机磷的降解率为92.50%,同时发现Cl-、SO42-和H2PO4-等无机阴离子对敌百虫农药的光催化降解产生抑制作用。还探讨了起始pH、无机阴离子,以及电子接受体Fe3+等对光催化降解敌百虫农药的影响。

关键词: 光催化降解, 敌百虫, 有机磷农药

Abstract:

The photocatalytic degradation of trichlorfon pesticides by using UV-TiO2-Fenton reagent has been studied. The results showthat UV-TiO2-Fenton reagent is excellent at oxidation and the effect of degradation of trichlorfon pesticides is more effective. The degradation efficiency of trichlorfon pesticides is up to 92.50%, when the concentration oftrichlorfon pesticides is 0.1 mmol/L, the original pH value of the reaction solution is 3.25, the air-flowis 2 L/min, the amount of TiO2 is 2 g/L, the amount of Fe 3+ is 0.1 mmol/L, the amount of H2O2 is 2 mmol/L and the radiation time is 2 h. Meantime, the photocatalytic degradation of trichlorfon pesticides is inhibited in the presence of abio-anion such as Cl-, SO4 2- and H2PO4- and so on. Various factors, such as the original pH value, abioanion, the acceptor of electron Fe 3+ that influence the photocatalytic degradation of trichlorfon pesticides, have been studied.

Key words: photocatalytic degradation, trichlorfon, organophosphorous pesticides

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