| 用藻类生长抑制试验研究光电催化水中五氯酚毒性特征 |
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| 引用本文： | 刘薇,全燮,阮修莉,赵进英,赵雅芝,赵慧敏,陈硕.用藻类生长抑制试验研究光电催化水中五氯酚毒性特征[J].大连理工大学学报,2006,46(6):808-812. |
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| 作者姓名： | 刘薇 全燮 阮修莉 赵进英 赵雅芝 赵慧敏 陈硕 |
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| 作者单位： | 大连理工大学,环境与生命学院,辽宁,大连,116024 |
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| 摘 要： | 采用96h藻类生长抑制试验考查了光电催化水中五氯酚过程中以及不同降解条件下的急性毒性变化规律．结果表明，光电催化去除五氯酚水溶液毒性的能力高于直接光解、电氧化；光电催化降解五氯酚的过程中溶液毒性逐步降低，反应2h后，溶液的毒性降低到初始毒性的11％．反应最佳条件为电解质Na2SO4浓度0．01mol／L，pH在7左右．
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| 关 键 词： | 光电催化 五氯酚 毒性评价 环境安全性 |
| 文章编号： | 1000-8608（2006）06-0808-05 |
| 收稿时间： | 2005-09-20 |
| 修稿时间： | 2005-09-202006-08-24 |
Toxicological characterization of photoelectrocatalytic degradation of PCP solution with alga growth inhibition test |
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| LIU Wei,QUAN Xie,RUAN Xiu-li,ZHAO Jin-ying,ZHAO Ya-zhi,ZHAO Hui-min,CHEN Shuo.Toxicological characterization of photoelectrocatalytic degradation of PCP solution with alga growth inhibition test[J].Journal of Dalian University of Technology,2006,46(6):808-812. |
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| Authors: | LIU Wei QUAN Xie RUAN Xiu-li ZHAO Jin-ying ZHAO Ya-zhi ZHAO Hui-min CHEN Shuo |
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| Institution: | School of Environ. and Biol. Sci. and Technol., Dalian Univ. of Technol., Dalian 116024, China |
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| Abstract: | The regularities of the acute toxicity changes during the photoelectrocatalysis process of pentachlorophenol(PCP) and toxicity reduction under different conditions were investigated with(96 h-alga) growth inhibition tests.The results indicate that photoelectrocatalysis can reduce the toxicity of PCP solution more effectively than direct photolysis and electro-oxidation.Toxicity of the treated solution decreased steadily during the photoelectrocatalysis process of PCP with a reduction of relative toxicity index to 11% of that of the starting solution after two hours of treatment.The optimum reaction conditions are as follows: the electrolyte(Na_2SO_4) concentration is 0.01 mol/L,and pH is around 7. |
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| Keywords: | photoelectrocatalysis pentachlorophenol toxicity evaluation environmental safety |
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