2012-1-1 · Procedia Environmental Sciences 16 ( 2012 ) 167 â€" 175 1878-0296 © 2012 Selection and/or peer-review under responsibility of Basel Convention Coordinating Centre for Asia and the Pacifi c and National Center of Solid Waste Management, Ministry of Environmental Protection of China doi: 10.1016/j.proenv.2012.10.023 Available online at The 7 th International .