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Column experiments were performed under water-saturated conditions to evaluate the effectiveness of low-concentration surfactant solution at removing a trapped light non-aqueous phase liquid (LNAPL) o-xylene and a dense non-aqueous phase liquid (DNAPL) o-dichlorobenzene from soil. Sorption of the ethoxylated alcohol (Witconol SN90) surfactant on the porous material was evaluated using both batch and...
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