Adsorption of mixed polycyclic aromatic hydrocarbons in surfactant solutions by activated carbon
- Resource Type
- Article
- Authors
- Jianfei Liu; Jiajun Chen; Lin Jiang; Xue Yin
- Source
- Journal of Industrial and Engineering Chemistry, 20(2), pp.616-623 Mar, 2014
- Subject
- 화학공학
- Language
- English
- ISSN
- 1876-794X
1226-086X
The adsorption behavior of three polycyclic aromatic hydrocarbons (PAH) in TX100 solution by activatedcarbon was studied aiming at surfactant recovery. Adsorption experiments were conducted in batch andcolumn models. The adsorption data fitted well with the Langmuir isotherm model, Dubinin–Radushkevich isotherm models and pseudo-second-order kinetics model. Regarding column adsorption,the exhausting time of TX100 was shorter than the breakthrough time of PAH in the fixed AC column. This finding indicates the feasibility of reusing surfactants from soil-washing solutions. The total costscan reduce about $ 0.57 per 10 L washing solution with AC adsorption.