Adsorption of chlorinated solvents in nonionic surfactant solutions with activated carbon in a fixed bed
- Adsorption of chlorinated solvents in nonionic surfactant solutions with activated carbon in a fixed bed
- 양중석; 백기태; 권태순; 양지원
- GAC; perchloroethylene; SER; soil flushing; Trichloroethylene
- Issue Date
- Journal of industrial and engineering chemistry
- VOL 15, NO 6, 777-779
- The adsorption characteristics of chlorinated solvents, trichloroethylene (TCE) and perchloroethylene
(PCE), in surfactant solutions with granular activated carbon (GAC) were investigated with the goal of
recovering the surfactant from the effluent in surfactant enhanced remediation (SER). Triton X-100
(TX100) and X-165 (TX165) were selected as model surfactants, and the GAC was Darco 20–40. The
adsorption amounts for the TX100 and TX165 onto GAC was about 0.26–0.27 g/g GAC. On a GAC fixed
bed, the adsorbed amounts of TCE (0.19 g/g) and PCE (0.35 g/g) in the TX165 (10 g/L) solution onto the
GAC were higher than those for TCE (0.16 g/g) and PCE (0.24 g/g) in the TX100 (10 g/L) solution. Because
the ratio of surfactants/chlorinated solvents in the ordinary effluent of SER is higher than 1, activated
carbon adsorption could be used as an alternative of post-treatment method in SER.
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