Removal and degradation of aromatic compounds from a highly polluted site by coupling soil washing with photocatalysis

被引：51

作者：

Fabbri, D. ^{[1
]}

Prevot, A. Bianco ^{[1
]}

Zelano, V. ^{[1
]}

Ginepro, M. ^{[1
]}

Pramauro, E. ^{[1
]}

机构：

[1] Univ Turin, Dipartimento Chim Analit, I-10125 Turin, Italy

来源：

CHEMOSPHERE | 2008年 / 71卷 / 01期

关键词：

soil washing; surfactants; photocatalysis; aromatic pollutants;

D O I：

10.1016/j.chemosphere.2007.10.028

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The possible application of two environmental remediation technologies - soil washing and photocatalysis - to remove and decompose various aromatic pollutants present in excavated soils of a contaminated industrial site has been investigated. Aqueous solutions containing the non-ionic surfactant Brij 35 were used to extract the contaminants from the soil samples. The photocatalytic treatment of the obtained washing wastes, performed in the presence of TiO2 suspensions irradiated with simulated sunlight, showed a slow abatement of the toxic compounds due to the relevant concentrations of organics in the waste. A neat improvement of the process performances, obtained by operating in the presence of added potassium peroxydisulfate, suggests a feasible treatment route. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：59 / 65

页数：7

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