Soil washing potential of a natural surfactant
Article Abstract:
Natural surfactants derived from plants can be used as alternatives to synthetic surfactants in soil remediation. This was affirmed by results of an evaluation of the soil washing potential of a plant-based natural surfactant obtained from the fruit pericarp of Sapindus mukurossi. Using the natural surfactant to flush hexachlorobenzene from soil columns, it was found that HCB recoveries after 12 pore volumes of flushing with 0.5 and 1% natural surfactant solutions were 20 and 100 times higher than that recovered by water flooding.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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Separation and characterization of petroleum hydrocarbons and surfactant in Orimulsion dispersion samples
Article Abstract:
An approach which combines membrane/filtration, capillary gas chromatography and high-performance liquid chromatography was developed and used for the separation and characterization of petroleum hydrocarbons and surfactant in Orimulsion. Results reveal that the saturates are predominantly composed of aliphatic hydrocarbons and that Orimulsion does not contain benzene, toluene, ethylbenzene and xylene and lighter alkylbenzenes. The surfactant was identified as polyethoxylated nonylphenol, with a concentration of about 0.5.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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Risk Assessment for Polycyclic Aromatic Hydrocarbon NAPLs Using Component Fractions
Article Abstract:
Researchers at the Total Petroleum Hydrocarbon Criteria Working Group developed a fraction approach for characterizing PAH NAPLs that can be used to predict NAPL compositional dynamics. Charts, figures, tables, graphs accompany the article.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1999
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