Biochemical methane potential (BMP) of agro-food wastes from the Cider Region (Spain).


An inventory of agro-food industry organic waste streams with a high potential for biogas transformation was studied in a logistically viable area (Cider Region, Asturias, Spain). Three industries were selected as the most viable ones: livestock, dairy and beverage. The potential for methane production from six wastes (beverage waste, BW; milled apple waste, MA; milk waste, MK; yogurt waste, YG; fats and oils from dairy wastewater treatment, F&O and cattle manure, CM) at five different substrate:inoculum ratios (0.25, 0.50, 0.75, 1.00 and 1.50) was evaluated in laboratory batch assays. Obtained methane yields ranged from 202-549 mL STP CH(4)·g VS waste(-1), and the methane content in biogas ranged from 58-76%. The ultimate practical biochemical methane potentials were slightly affected by the substrate:inoculum ratio. The estimation of the regional fluxes of waste and methane potentials suggests anaerobic digestion as a sustainable solution for the valorization of the organic wastes generated in this Region.

DOI: 10.2166/wst.2012.372
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@article{Nieto2012BiochemicalMP, title={Biochemical methane potential (BMP) of agro-food wastes from the Cider Region (Spain).}, author={Pedro Nieto and Dolores Hidalgo and Rub{\'e}n Irusta and Daniel A. Kraut}, journal={Water science and technology : a journal of the International Association on Water Pollution Research}, year={2012}, volume={66 9}, pages={1842-8} }