토양세척을 위한 계면활성제의 효과적 선정

Efficient Screening of Surfactant for Soil Washing

Soil washing process being operated in ex-situ mode using surfactants could be appropriate one of the most effective one for remediation. The choice of surfactants has been considered most significantly to accomplish tile reduction of expenditure and the increase of efficiency. This study was carried out screening test and solubility, washing experiment, and surfactant sorption experiments for 18 kinds of surfactant obtained. Results from each surfactant's PSR obtained by the slope indicated that nonionic surfactants have much higher solubility for HOCs than anion surfactants for that. The washing experiment to find out a removal efficiency of each surfactant's TPH, LE1017 and LE1019 showed high removal efficiency. Through on the result of estimating the extent of adsorption of surfactants for soils, nonion surfactants showed higher adsorption to soils than anion surfactants.