五氯苯酚
化学
氯酚
羟基化
水溶液
酚类
反应中间体
苯酚
有机化学
萃取(化学)
降级(电信)
催化作用
酶
电信
计算机科学
作者
Arja Hirvonen,Marina Trapido,Johanna Hentunen,Juhani Tarhanen
出处
期刊:Chemosphere
[Elsevier]
日期:2000-10-01
卷期号:41 (8): 1211-1218
被引量:84
标识
DOI:10.1016/s0045-6535(99)00548-2
摘要
The oxidation of selected chlorophenols (2-chlorophenol, 4-chlorophenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, 2,3,4,6-tetrachlorophenol and pentachlorophenol) was studied in aqueous solutions using UV/H2O2 and O3 methods. The formation of oxidation intermediates was measured to elucidate their importance in the treatment of chlorophenols. Results indicated that chlorophenols can be treated efficiently by the methods studied, but the dechlorination of the compounds was insufficient. Analysis of intermediates in the acetylated extraction fractions showed that hydroxylation of chlorophenols and formation of dimeric products were involved in the oxidation of chlorophenols in both treatment processes. The majority of the intermediates detected were transient, and thus were not detectable after an extended treatment time. The presence of a complicated mixture of intermediates suggests the need for toxicity testing to confirm the detoxifying effect of the chemical oxidation of chlorophenols.
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