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
收藏
页码：59 / 65
页数：7
相关论文
共 31 条
  • [1] Photocatalysis in water environments using artificial and solar light
    Alfano, OM
    Bahnemann, D
    Cassano, AE
    Dillert, R
    Goslich, R
    [J]. CATALYSIS TODAY, 2000, 58 (2-3) : 199 - 230
  • [2] BAHNEMANN D, 1994, AQUATIC AND SURFACE PHOTOCHEMISTRY, P261
  • [3] INVESTIGATION OF THE RETENTION MECHANISM IN NONIONIC MICELLAR LIQUID-CHROMATOGRAPHY USING AN ALKYLBENZENE HOMOLOGOUS SERIES
    BORGERDING, MF
    QUINA, FH
    HINZE, WL
    BOWERMASTER, J
    MCNAIR, HM
    [J]. ANALYTICAL CHEMISTRY, 1988, 60 (22) : 2520 - 2527
  • [4] HYDROPHOBIC AND COULOMBIC INTERACTIONS IN THE MICELLAR BINDING OF PHENOLS AND PHENOXIDE IONS
    BUNTON, CA
    SEPULVEDA, L
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1979, 83 (06) : 680 - 683
  • [5] Remediation of contaminated soil by a solvent/surfactant system
    Chu, W
    Kwan, CY
    [J]. CHEMOSPHERE, 2003, 53 (01) : 9 - 15
  • [6] The mechanism of the surfactant-aided soil washing system for hydrophobic and partial hydrophobic organics
    Chu, W
    Chan, KH
    [J]. SCIENCE OF THE TOTAL ENVIRONMENT, 2003, 307 (1-3) : 83 - 92
  • [7] CHU W, 2001, WATER RES, V35, P182
  • [8] Surfactant selection for enhancing ex situ soil washing
    Deshpande, S
    Shiau, BJ
    Wade, D
    Sabatini, DA
    Harwell, JH
    [J]. WATER RESEARCH, 1999, 33 (02) : 351 - 360
  • [9] SOLUBILIZATION OF POLYCYCLIC AROMATIC-HYDROCARBONS IN MICELLAR NONIONIC SURFACTANT SOLUTIONS
    EDWARDS, DA
    LUTHY, RG
    LIU, ZB
    [J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1991, 25 (01) : 127 - 133
  • [10] Effect of surfactant microstructures on photocatalytic degradation of phenol and chlorophenols
    Fabbri, D
    Prevot, AB
    Pramauro, E
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 62 (1-2) : 21 - 27
1234