Evaluation of hydrophobicity in PAH-contaminated soils during phytoremediation

Naressa Cofield; Margaret Katherine Banks; A. Paul Schwab

doi:10.1016/j.envpol.2006.03.040

Evaluation of hydrophobicity in PAH-contaminated soils during phytoremediation

Naressa Cofield, Margaret Katherine Banks, A. Paul Schwab

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21 Scopus citations

Abstract

The impact of recalcitrant organic compounds on soil hydrophobicity was evaluated in contaminated soil from a manufactured gas plant site following 12 months of phytoremediation. Significant reduction in soil wetting and water retention was observed in contaminated soil compared to an uncontaminated control. Phytoremediation was effective at reducing total PAHs by 69% with corresponding changes in soil classification from extremely hydrophobic (initial sample) to moderately-strongly hydrophobic (planted) and hydrophilic-very hydrophilic (unplanted) after 12 months. The greatest reduction in soil hydrophobicity was observed in the unplanted, unfertilized treatments that had the lowest removal rate of PAHs. The presence of plants may contribute to hydrophobicity in contaminated soil.

Original language	English (US)
Pages (from-to)	60-67
Number of pages	8
Journal	Environmental Pollution
Volume	145
Issue number	1
DOIs	https://doi.org/10.1016/j.envpol.2006.03.040
State	Published - Jan 1 2007

Keywords

Contamination
Hydrophobicity
Phytoremediation
Polycyclic aromatic hydrocarbons
Soil wetting
Water retention

ASJC Scopus subject areas

Toxicology
Pollution
Health, Toxicology and Mutagenesis

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10.1016/j.envpol.2006.03.040

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title = "Evaluation of hydrophobicity in PAH-contaminated soils during phytoremediation",

abstract = "The impact of recalcitrant organic compounds on soil hydrophobicity was evaluated in contaminated soil from a manufactured gas plant site following 12 months of phytoremediation. Significant reduction in soil wetting and water retention was observed in contaminated soil compared to an uncontaminated control. Phytoremediation was effective at reducing total PAHs by 69% with corresponding changes in soil classification from extremely hydrophobic (initial sample) to moderately-strongly hydrophobic (planted) and hydrophilic-very hydrophilic (unplanted) after 12 months. The greatest reduction in soil hydrophobicity was observed in the unplanted, unfertilized treatments that had the lowest removal rate of PAHs. The presence of plants may contribute to hydrophobicity in contaminated soil.",

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AU - Banks, Margaret Katherine

AU - Schwab, A. Paul

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N2 - The impact of recalcitrant organic compounds on soil hydrophobicity was evaluated in contaminated soil from a manufactured gas plant site following 12 months of phytoremediation. Significant reduction in soil wetting and water retention was observed in contaminated soil compared to an uncontaminated control. Phytoremediation was effective at reducing total PAHs by 69% with corresponding changes in soil classification from extremely hydrophobic (initial sample) to moderately-strongly hydrophobic (planted) and hydrophilic-very hydrophilic (unplanted) after 12 months. The greatest reduction in soil hydrophobicity was observed in the unplanted, unfertilized treatments that had the lowest removal rate of PAHs. The presence of plants may contribute to hydrophobicity in contaminated soil.

AB - The impact of recalcitrant organic compounds on soil hydrophobicity was evaluated in contaminated soil from a manufactured gas plant site following 12 months of phytoremediation. Significant reduction in soil wetting and water retention was observed in contaminated soil compared to an uncontaminated control. Phytoremediation was effective at reducing total PAHs by 69% with corresponding changes in soil classification from extremely hydrophobic (initial sample) to moderately-strongly hydrophobic (planted) and hydrophilic-very hydrophilic (unplanted) after 12 months. The greatest reduction in soil hydrophobicity was observed in the unplanted, unfertilized treatments that had the lowest removal rate of PAHs. The presence of plants may contribute to hydrophobicity in contaminated soil.

KW - Contamination

KW - Hydrophobicity

KW - Phytoremediation

KW - Polycyclic aromatic hydrocarbons

KW - Soil wetting

KW - Water retention

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JO - Environmental pollution (Barking, Essex : 1987)

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Evaluation of hydrophobicity in PAH-contaminated soils during phytoremediation

Abstract

Keywords

ASJC Scopus subject areas

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