A hybrid Fenton oxidation-microbial treatment for soil highly contaminated with benz(a)anthracene

被引：58

作者：

Lee, BD ^{[1
]}

Hosomi, M ^{[1
]}

机构：

[1] Tokyo Univ Agr & Technol, Dept Chem Engn, Koganei, Tokyo 1848588, Japan

来源：

CHEMOSPHERE | 2001年 / 43卷 / 08期

关键词：

benz(a)anthracene; benz(a)anthracene-7,12-dione; biodegradability; Fenton oxidation; microbial resistance; contaminated soil;

D O I：

10.1016/S0045-6535(00)00182-X

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In order to mitigate the strong microbial resistance of benz(a)anthracene [B(a)A] in soil, a hybrid treatment of Fenton oxidation followed microbial culture was carried out. Based on optimal Fenton oxidation, i.e., 1.0 mi of ethanol, 0.2 mi of 0.5 M Fe2+, and 0.3 mi of 30% H2O2 per 1 g of 500 mg B(a)A/kg soil, about 43% of B(a)A-7,12-dione was generated during oxidation of 97% B(a)A. When the comparative biodegradability between B(a)A-contaminated soil and B(a)A-contaminated soil after Fenton oxidation was examined, it was found that 98% of B(a)A-7,12-dione degraded after 63 d in comparison with only 12% of B(a)A over the same period; results demonstrating that Fenton oxidation enhances biodegradability of B(a)A through B(a)A-7,12-dione. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1127 / 1132

页数：6

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