naa a22 4500 510821324 CHVBK 20180411083533.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11814-012-0222-x doi (NATIONALLICENCE)springer-10.1007/s11814-012-0222-x Effect of soil organic carbon on sorption and desorption of perchloroethylene in soils [Elektronische Daten] [Youn-Goog Lee, Jeong-Hun Park] The objective of this study was to elucidate the sorption and desorption behaviors of PCE (Perchloroethylene, C2Cl4) in seven soils with different organic carbon (OC) content. Sorption/desorption kinetic and serial dilution desorption experiments were conducted in batch slurries. The sorption distribution coefficient (K d ) of PCE ranged from 0.60 to 4.66 L kg−1. K d tended to increase as the soil OC increased, but K oc tended to decrease, suggesting that adsorption into the mineral surface was not negligible in soils with low OC. Desorption kinetic data were analyzed by the two-site desorption model. The sorption/desorption of PCE was not reversible over short incubation times due to the presence of a non-desorbable site. The desorbable site fractions of PCE increased and non-desorbable site fractions decreased as the soil OC increased. It is suggested that partition of PCE into soil organic carbon is more reversible than adsorption on soil minerals. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Sorption nationallicence Desorption nationallicence Organic Carbon nationallicence Hysteresis nationallicence Perchloroethylene nationallicence Lee Youn-Goog The Health and Environment Institute of Gwangju, 502-837, Gwang-Ju, Korea aut Park Jeong-Hun Department of Environmental Eng., Chonnam National University, 500-757, Gwang-Ju, Korea aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/2(2013-02-01), 345-350 0256-1115 30:2<345 2013 30 11814 https://doi.org/10.1007/s11814-012-0222-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-012-0222-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee Youn-Goog The Health and Environment Institute of Gwangju, 502-837, Gwang-Ju, Korea aut NATIONALLICENCE 700 1- Park Jeong-Hun Department of Environmental Eng., Chonnam National University, 500-757, Gwang-Ju, Korea aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/2(2013-02-01), 345-350 0256-1115 30:2<345 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer