Electrokinetic remediation of mercury-contaminated soils using iodine/iodide lixiviant
Article Abstract:
Various techniques have been developed to improve remediation of contaminated areas in the environment. One technique that has received increasing attention is the electrokinetic method for the remediation of contaminated soil and groundwater. The method employs electrolysis to remove metals from the contaminated areas by using lixiviant solutions that enhance the solubility of metals. Laboratory tests using the approach, with iodine/iodide as lixiviant, reveal 99% efficiency for removing mercury in mercury-contaminated soils.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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Kinetic aspects of surfactant solubilization of soil-bound polycyclic aromatic hydrocarbons
Article Abstract:
Increasing matrix diffusivities was the main factor behind the ability of nonionic polyoxyethylene (POE) surfactants to enhance release of polycyclic aromatic hydrocarbons (PAHs) from a weathered, coal tar-contaminated soil from a manufacturing gas plant site. A secondary factor was the increase in solubility by partitioning PAHs into the micellat pseudophase. These were gleaned from a study of the effect of POE surfactants on the solubilization rate of individual PAHs from the test soil.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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Micellar solubilization of polynuclear aromatic hydrocarbons in coal tar-contaminated soils
Article Abstract:
Existing linear partitioning theories were used to develop an equilibrium model to determine the extent of release of polynuclear aromatic hydrocarbons (PAHs) from a coal tar-contaminated soil from a manufactured gas plant site. The model accurately predicted solubilization of PAHs at low surfactant dosages, but failed to predict solubilization at high dosages.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
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