naa a22 4500 510750397 CHVBK 20180411083102.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11270-013-1711-1 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1711-1 Comparative Sorption of Pb and Cd by Biochars and Its Implication for Metal Immobilization in Soils [Elektronische Daten] [Jin Park, Girish Choppala, Seul Lee, Nanthi Bolan, Jae Chung, Mansour Edraki] Biochar has great potential as a soil amendment to immobilize heavy metals, thereby reducing their bioavailability. In this study, biochars derived from chicken manure and green waste were compared with commercial activated carbon (AC) and laboratory produced black carbon (BC) for the sorption of Pb and Cd. Sorption kinetics and equilibrium sorption isotherms for Pb and Cd were obtained for the char materials and the data were fitted to kinetic and sorption isotherm models.. Chicken manure-derived biochar (CM) showed the highest sorption capacity for both Pb and Cd, and the Pb sorption by biochars was higher than the Cd sorption because of the precipitation of Pb with various ions released from the biochars such as carbonate, phosphate, and sulfate. The sorption data for both Pb and Cd were better represented by the pseudo-second order kinetic model than the pseudo-first order kinetic model, which indicates chemical sorption between biochar and metals. For the isotherm studies, char materials was mixed with various amount of Pb or Cd solutions and the remaining metal concentration was measured. The equilibrium sorption data followed a Langmuir isotherm with a maximum sorption capacity of 6.8-11 and 1.7-8.0mg/g by biochars for Pb and Cd, respectively. Furthermore, CM immobilized Pb and Cd up to 93.5 and 88.4%, respectively, while BC was not effective in the immobilization of Pb in soil. Overall, the sorption experiments in solution and the immobilization experiment in soil showed that biochars are more effective than AC in the sorption of Pb and Cd, and that they have the potential to be used as a soil amendment to remediate metal-contaminated soil. Springer Science+Business Media Dordrecht, 2013 Sorption nationallicence Immobilization nationallicence Biochar nationallicence Activated carbon nationallicence Black carbon nationallicence Lead nationallicence Cadmium nationallicence Park Jin Centre for Mined Land Rehabilitation, The University of Queensland, 4072, St Lucia, QLD, Australia aut Choppala Girish Centre for Environmental Risk Assessment and Remediation, University of South Australia, 5095, Mawson Lakes, SA, Australia aut Lee Seul Department of Environmental Engineering, Gyeongnam National University of Science and Technology, Dongjin-ro 33, 660-758, Jinju, Gyeongnam, Republic of Korea aut Bolan Nanthi Centre for Environmental Risk Assessment and Remediation, University of South Australia, 5095, Mawson Lakes, SA, Australia aut Chung Jae Department of Environmental Engineering, Gyeongnam National University of Science and Technology, Dongjin-ro 33, 660-758, Jinju, Gyeongnam, Republic of Korea aut Edraki Mansour Centre for Mined Land Rehabilitation, The University of Queensland, 4072, St Lucia, QLD, Australia aut Water, Air, & Soil Pollution Springer Netherlands 224/12(2013-12-01), 1-12 0049-6979 224:12<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1711-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1711-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Park Jin Centre for Mined Land Rehabilitation, The University of Queensland, 4072, St Lucia, QLD, Australia aut NATIONALLICENCE 700 1- Choppala Girish Centre for Environmental Risk Assessment and Remediation, University of South Australia, 5095, Mawson Lakes, SA, Australia aut NATIONALLICENCE 700 1- Lee Seul Department of Environmental Engineering, Gyeongnam National University of Science and Technology, Dongjin-ro 33, 660-758, Jinju, Gyeongnam, Republic of Korea aut NATIONALLICENCE 700 1- Bolan Nanthi Centre for Environmental Risk Assessment and Remediation, University of South Australia, 5095, Mawson Lakes, SA, Australia aut NATIONALLICENCE 700 1- Chung Jae Department of Environmental Engineering, Gyeongnam National University of Science and Technology, Dongjin-ro 33, 660-758, Jinju, Gyeongnam, Republic of Korea aut NATIONALLICENCE 700 1- Edraki Mansour Centre for Mined Land Rehabilitation, The University of Queensland, 4072, St Lucia, QLD, Australia aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/12(2013-12-01), 1-12 0049-6979 224:12<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer