Influence of Quartz, Kaolin, and Organic Matter on the Critical Micelle Concentration of Tween Surfactants and their Application in Diesel‐Contaminated Soil Washing
Abstract:Surfactant solutions are commonly used for the remediation of petroleum-contaminated soil due to their good petroleum removal performance, time-saving capability, and cost effectiveness. However, applying surfactants in excess concentrations could make oil recovery difficult. Moreover, residual surfactants in soil are toxic to microorganisms and plants. Thus, it is crucial to identify a suitable surfactant concentration for soil washing applications. The main objective of this study was to evaluate the effect … Show more
“…Hydrogen bonds between the ethoxylate group of TW80 and the surface of the particulate matter might be responsible for this phenomenon. Moreover, the double bond in the TW80 hydrophobic tail group provides a strong adsorption site for TW80 on the surface of organic matter [ 24 ]. Due to surfactant adsorption, the concentration of surfactant must be greater than its CMC to ensure good extraction performance [ 25 ].…”
“…Hydrogen bonds between the ethoxylate group of TW80 and the surface of the particulate matter might be responsible for this phenomenon. Moreover, the double bond in the TW80 hydrophobic tail group provides a strong adsorption site for TW80 on the surface of organic matter [ 24 ]. Due to surfactant adsorption, the concentration of surfactant must be greater than its CMC to ensure good extraction performance [ 25 ].…”
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