摘要
研究了用辣根过氧化物酶对五氯酚的模拟废水进行催化聚合处理的过程。结果表明，辣根过氧化物酶可以有效地去除五氯酚。反应的最佳ｐＨ 范围为４ ～５ ，去除率可达９５ ％ 以上。聚合处理过程中五氯酚与过氧化氢的反应计量比为２∶１ 。反应计量比以及处理过程中氯的释放实验表明，五氯酚聚合作用的主要产物是二聚体。另外，反应速度与酶和过氧化氢的用量有关，增加酶用量或适量增加过氧化氢的用量可以明显缩短反应时间。
The catalyzed polymerization and precipitation of pentachlorophenol(PCP)using horseradish peroxidase(HRP)was investigated.The result indicates that HRP was capable of removing PCP.Over 95% of PCP removal was achieved at the optimal pH range of 4～5.PCP reacted with hydrogen peroxide with a stoichiometry of 2∶1.The stoichiometry and the release of chloride indicate that dimers are the main products in the treatment process.In addition,the reaction rate was closely related to the quantity of enzyme and hydrogen peroxide.
出处
《环境科学研究》
EI
CAS
CSCD
北大核心
2000年第2期12-14,27,共4页
Research of Environmental Sciences
关键词
辣根过氧化物酶
五氯酚
废水处理
horseradish peroxidase
wastewater
pentachlorophenol
catalytic reaction
