Evaluation of the apparent phytodegradation of pentachlorophenol by Chlorella pyrenoidosa

被引：5

作者：

Headley, John V. ^{[1
]}

Peru, Kerry M. ^{[1
]}

Du, Jing-Long ^{[2
]}

Gurprasad, Narine

Mcmartin, Dena W. ^{[3
]}

机构：

[1] Environm Canada, Water Sci & Technol Directorate, Aquat Ecosyst Res Prot Div, Saskatoon, SK S7N 3H5, Canada

[2] Univ Saskatchewan, Div Environm Engn, Saskatoon, SK, Canada

[3] Univ Regina, Regina, SK S4S 0A2, Canada

来源：

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING | 2008年 / 43卷 / 04期

关键词：

degradation; light-induced algal transformation; pentachlorophenol; photolysis; Chlorella pyrenoidosa;

D O I：

10.1080/10934520701795491

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Several factors influencing the apparent phytodegradation of pentachlorophenol (PCP) were investigated under controlled laboratory conditions including photolysis, biodegradation, and direct phytodegradation by the algae, Chlorella pyrenoidosa. PCP was observed to degrade over time in all instances. Degradation occurred both with and without the presence of algae. The degradation of PCP was observed to be dependent primarily on photolysis with pseudo-first-order kinetics and rate constants in the range of 6.4 to 7.7 h(-1). In contrast, phytodegradation due to algal activity was negligible. It is suspected that the algae degradation may have been limited by the cycling of light exposure to simulate day and night periods.

引用

页码：361 / 364

页数：4

共 12 条

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