naa a22 4500 510752039 CHVBK 20180411083108.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11270-013-1506-4 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1506-4 Soil-Washing Effluent Treatment by Selective Adsorption of Toxic Organic Contaminants on Activated Carbon [Elektronische Daten] [Juana Rosas, Aurora Santos, Arturo Romero] The recovery of Tween 80 from a liquid residue, obtained after washing of a contaminated soil with p-Cresol, was studied by selective adsorption of p-Cresol with activated carbons. A modified expression of the Langmuir equation was succesfully used to predict the adsorption isotherms of p-Cresol in the absence and presence of different surfactant concentrations. The presence of surfactant seems to modify the adsorption equilibrium, but it does not produce any significant influence on the adsorption kinetic of p-Cresol. A mathematical model was developed to predict the optimum activated carbon dosage demanded to reduce the p-Cresol concentration as a function of the surfactant concentration, also obtaining the corresponding surfactant loss. The regenerated solution was favorably used as washing solution in a new contaminated soil. These results indicate that this technique can be adequate to recover the surfactant solution, with a relatively minimal loss, for a subsequent application. Springer Science+Business Media Dordrecht, 2013 Soil washing nationallicence Adsorption nationallicence Nonionic surfactant nationallicence Remediation nationallicence Rosas Juana Departamento Ingenieria Quimica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria, 28040, Madrid, Spain aut Santos Aurora Departamento Ingenieria Quimica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria, 28040, Madrid, Spain aut Romero Arturo Departamento Ingenieria Quimica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria, 28040, Madrid, Spain aut Water, Air, & Soil Pollution Springer Netherlands 224/5(2013-05-01), 1-10 0049-6979 224:5<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1506-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1506-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rosas Juana Departamento Ingenieria Quimica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria, 28040, Madrid, Spain aut NATIONALLICENCE 700 1- Santos Aurora Departamento Ingenieria Quimica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria, 28040, Madrid, Spain aut NATIONALLICENCE 700 1- Romero Arturo Departamento Ingenieria Quimica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria, 28040, Madrid, Spain aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/5(2013-05-01), 1-10 0049-6979 224:5<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer