The characteristics of enzymatic treatment of pentachlorophenol in wastewater  

作　　者：J. A. Nicell 

机构地区：[1]Department of Civil Engineering and Applied Mechanics, McGill University, 817 Sherbrooke Street West, Montreal, Qtebec H3A 2K6, Canada

出　　处：《Chinese Science Bulletin》1999年第S2期178-180,共3页

摘　　要：PHENOLIC wastes are classified as hazardous pollutants, because the release of phenolic compounds resulted in the serious contamination of water and soil and became a threat to human health. This study focused on the treatment of model wastewater of pentachlorophenol （PCP） using horseradish peroxidase（HRP）. HRP catalyzes the oxidation of PCP by hydrogen peroxide, and insoluble polymers are generated. The characteristics of the treatment, such as pH, stoichiometry, reaction rate and enzyme dose wereinvestigated. 1 Reactions Initial model wastewater of PCP was prepared by adding PCP stock solution （5 mmol/L, dissolved inmethanol） into buffer. As soon as H₂O₂ and HRP were added, the reaction mixture was continuously stirred.The initial PCP concentration was 0.05 mmol/L. Reactions were carried out at 25℃. Reactions were haltedthrough the addition of catalase that rapidly converts H₂O2 to water and oxygen. The samples were

关 键 词：HORSERADISH PEROXIDASE pentaehlorophenol WASTEWATER treatment. 

分 类 号：X503[环境科学与工程—环境工程]