Bioremediation of polycyclic aromatic hydrocarbons (PAHs)-contaminated sewage sludge by different composting processes

被引：108

作者：

Cai, Quan-Ying

Mo, Ce-Hui ^{[1
]}

Wu, Qi-Tang

Zeng, Qiao-Yun

Katsoyiannis, Athanasios

Ferard, Jean-Francois

机构：

[1] Jinan Univ, Dept Environm Engn, Guangzhou 510632, Guangdong, Peoples R China

[2] S China Agr Univ, Coll Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China

[3] TP 281, I-21020 Ispra, Italy

[4] EU Joint Res Ctr, Inst Hlth & Consumer Protect, Phys & Chem Exposure Unit, Ispra, Italy

[5] Univ Paul Verlaine Metz, CNRS UMR 7146, Lab Ecotoxicite Sante Environm, F-57070 Metz, France

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2007年 / 142卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

polycyclic aromatic hydrocarbons; bioremediation; composting; sewage sludge; rice straw;

D O I：

10.1016/j.jhazmat.2006.08.062

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The efficiency of four different composting processes to bioremediate polycyclic aromatic hydrocarbons (PAHs)-contaminated sewage sludge was investigated. Prior to composting, sewage sludge coming from the Datansha wastewater treatment plant, Guangzhou, China, was mixed with rice straw to obtain a C/N ratio of 13: 1. After 56 days of composting, the total concentrations of 16 PAHs (Sigma(PAHs)) ranged from 1.8 to 10.2 mg kg(-1) dry weight, decreasing in order of inoculated-manual turned compost (IMTC) > manual turned compost (MTC) > continuous aerated compost (CAC) > intermittent aerated compost (IAC), exhibiting removal rates of 64%, 70%, 85% and 94%, respectively. Individual PAHs were generally removed in similar rates. IAC treatment showed a higher removal rate of high molecular weight PAHs and carcinogenic PAHs comparing to the other composting processes. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：535 / 542

页数：8

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