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紫外光和活性炭对有机物臭氧化的协同催化作用

陈 瑛 郭二民 黄国忠 张建祺 宋存义

陈 瑛, 郭二民, 黄国忠, 张建祺, 宋存义. 紫外光和活性炭对有机物臭氧化的协同催化作用[J]. 环境科学研究, 2007, 20(1): 90-94.
引用本文: 陈 瑛, 郭二民, 黄国忠, 张建祺, 宋存义. 紫外光和活性炭对有机物臭氧化的协同催化作用[J]. 环境科学研究, 2007, 20(1): 90-94.
CHEN Ying, GUO Er-min, HUANG Guo-zhong, CHANG Cheinchi, SONG Cun-yi. The Investigation of Synergetic Catalysis of UV and Active Carbon in Organic Compound Ozonation Process[J]. Research of Environmental Sciences, 2007, 20(1): 90-94.
Citation: CHEN Ying, GUO Er-min, HUANG Guo-zhong, CHANG Cheinchi, SONG Cun-yi. The Investigation of Synergetic Catalysis of UV and Active Carbon in Organic Compound Ozonation Process[J]. Research of Environmental Sciences, 2007, 20(1): 90-94.

紫外光和活性炭对有机物臭氧化的协同催化作用

The Investigation of Synergetic Catalysis of UV and Active Carbon in Organic Compound Ozonation Process

  • 摘要: 以城市二级出水中微量有机污染物为处理的目标物质,通过静态试验分别考察了不同催化条件下臭氧对水中有机污染物的降解效果.结果表明:协同催化反应器对水体在254 nm处紫外吸光度(E254)的去除率达87.40%,对CODCr的去除率可达59.79%,对臭氧的利用率可达到91.4%,因此,254 nm紫外光和活性炭对水中微量有机污染物的臭氧化过程具有协同催化作用,并大大提高了系统对臭氧的利用率;受OH影响,碱性条件下O3/UV/C工艺对CODCr和E254的去除效果好于中性和酸性条件;不同自由基捕捉剂对臭氧化过程的影响证明,在紫外光和活性炭的协同催化作用下,臭氧分解出以羟基自由基为主的多种氧化性自由基,因此水中有机污染物的氧化降解是多种自由基反应的结果.

     

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  • 刊出日期:  2007-02-25

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