Nusara SinbuathongJunko Munakata-MarrBoonsong SillapacharoenkulSuphang ChulalaksananukulKasetsart UniversityColorado School of MinesKing Mongkut's University of Technology North BangkokMahidol University2018-05-032018-05-032011-12-01International Journal of Global Warming. Vol.3, No.4 (2011), 403-41617582091175820832-s2.0-84864038147https://repository.li.mahidol.ac.th/handle/123456789/11839Anaerobic conversion of Jatropha curcas seed cake was studied in a five-litre working volume batch reactor at 30°C. Over a 60-day operating period, a slurry of seed cake in water at a 1 : 20 seed cake-to-water ratio showed the highest methane yield of 296 litre methane/kg Chemical Oxygen Demand (COD) degraded (or 156 litre/kg of Jatropha curcas seed cake added) and achieved 52% COD removal. The results revealed that Jatropha curcas seed cake treated anaerobically can be a good source of methane, with optimal seed cake-to-water ratio in the range of 1 : 20 to 1 : 10. Copyright © 2011 Inderscience Enterprises Ltd.Mahidol UniversityEarth and Planetary SciencesEnvironmental ScienceArticleSCOPUS10.1504/11.44403