Surfactant Screening for Soil Washing: Comparison of Foamability and Biodegradability of a Plant-Based Surfactant with Commercial Surfactants

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dc.contributor.authorZhang, Carl
dc.date.accessioned2020-04-02T19:24:02Z
dc.date.available2020-04-02T19:24:02Z
dc.date.issued1998
dc.description.abstractBiodegradable natural surfactants obtained from plants can be an attractive alternative to synthetic surfactants in the remediation of contaminated soils. In this research, a plant-based surfactant obtained from the fruit pericarp of Sapindus mukurossi, a tree generally grown in tropical regions of Asia, is tested. A simple and economical method for the preparation of the surfactant is developed. An empirical formula for the surfactant was determined to be (C26H31O10)n. The aqueous solubilities of hexachlorobenzene (HCB) and naphthalene in the natural surfactant solutions were found to vary linearly with the concentration of the surfactant showing trends comparable to that of typical com mercial surfactants. Natural surfactant solutions were also employed for flushing HCB from one-dimensional soil columns. HCB recoveries after 12 pore volumes of flushing with 0.5 and 1% natural surfactant solutions were 20 and 100 times more than that recovered by water flooding. These promising results warrant further research to establish the usefulness of plant-based surfactants for soil washing applications.en_US
dc.identifier.citationZhang C, Valsaraj KT, Constant WD, Roy D (1998), Surfactant Screening for Soil Washing: Comparison of Foamability and Biodegradability of a Plant-Based Surfactant with Commercial Surfactants, Journal of Environmental Science and Health, A33(7):1249-1273. 50en_US
dc.identifier.urihttps://hdl.handle.net/10657.1/2226
dc.publisherJournal of Environmental Science and Healthen_US
dc.subjectSoilsAromatic compoundsSolubilizationSolubilitySurfactantsen_US
dc.titleSurfactant Screening for Soil Washing: Comparison of Foamability and Biodegradability of a Plant-Based Surfactant with Commercial Surfactantsen_US
dc.typeArticleen_US

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College of Science and Engineering
Chunlong (Carl) Zhang