Bioresour Technol 2013 Oct 20;146:101-108. Epub 2013 Jul 20.
Energy Technology Research Center, Department of Civil Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai Campus, Hat Yai, Songkhla 90110, Thailand; Center of Excellence for Environmental and Hazardous Waste Management (EHWM), Southern University Consortium, Prince of Songkla University, Hat Yai Campus, Hat Yai, Songkhla 90110, Thailand. Electronic address: