naa a22 4500 510751709 CHVBK 20180411083107.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11270-013-1652-8 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1652-8 Evaluation of Subcritical Water Extraction Process for Remediation of Pesticide-Contaminated Soil [Elektronische Daten] [Mohammad Islam, Young-Tae Jo, Sun-Kook Jung, Jeong-Hun Park] In this study, the effectiveness of subcritical water extraction (SCWE) was assessed by extracting four pesticides, namely diazinon, parathion, phenthoat, and EPN, from contaminated soil. The extraction efficiencies of different temperatures (25, 75, 100, 125, and 150°C); times (10, 20, 30, and 40min); pressures (1, 2, and 3MPa); and water flow rates (0.5, 0.7, 1.0, and 1.5mL/min) were investigated. The optimum temperature, time, pressure, and flow rate were found to be 150°C, 20min, 2MPa, and 0.5mL/min, respectively, in lab-scale. At this operating condition, the residual concentration of pesticide was less than 0.5mg/kg, corresponding to an extraction efficiency of 99.9%. The aim of this study was to also evaluate the removal efficiency on 30- and 167-fold scale-up extraction at optimum extraction condition obtained from lab-scale studies. The scale-up method considering constant ratio of the volume of water to soil mass was a feasible procedure. The results of our study suggest that SCWE is a promising option for effective disposal of pesticide-contaminated soil. Springer Science+Business Media Dordrecht, 2013 Subcritical water nationallicence Removal efficiency nationallicence Pesticide nationallicence Scale-up nationallicence Islam Mohammad Department of Environmental Engineering, Chonnam National University, 500-757, Gwangju, Republic of Korea aut Jo Young-Tae Department of Environmental Engineering, Chonnam National University, 500-757, Gwangju, Republic of Korea aut Jung Sun-Kook ENplus Corp, Hakdong, 555-010, Yeosu, Chonnam, Republic of Korea aut Park Jeong-Hun Department of Environmental Engineering, Chonnam National University, 500-757, Gwangju, Republic of Korea aut Water, Air, & Soil Pollution Springer Netherlands 224/8(2013-08-01), 1-10 0049-6979 224:8<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1652-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1652-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Islam Mohammad Department of Environmental Engineering, Chonnam National University, 500-757, Gwangju, Republic of Korea aut NATIONALLICENCE 700 1- Jo Young-Tae Department of Environmental Engineering, Chonnam National University, 500-757, Gwangju, Republic of Korea aut NATIONALLICENCE 700 1- Jung Sun-Kook ENplus Corp, Hakdong, 555-010, Yeosu, Chonnam, Republic of Korea aut NATIONALLICENCE 700 1- Park Jeong-Hun Department of Environmental Engineering, Chonnam National University, 500-757, Gwangju, Republic of Korea aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/8(2013-08-01), 1-10 0049-6979 224:8<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer