Department of Agriculture, Forestry, Environmental Engineering and Land Based Economics (DEIAFA), Mechanics Section - Turin University via Leonardo da Vinci 44, 10095 Grugliasco, Turin, Italy.
Bioresour Technol. 2010 May;101(10):3780-3. doi: 10.1016/j.biortech.2009.12.113. Epub 2010 Jan 21.
Batch trials were carried out to asses the biogas productivity potential of rice and barley straw, grape stalks, grape marcs, maize drying up residues, tomato skins and seeds, and whey. Trials were carried out in 2l glass digesters kept in a thermostate controlled room at 40 degrees C for 40days. The most productive biomasses, in terms of specific methane yield, were the whey and the maize drying up residues. Their specific methane yields were 501 and 317l(N) CH(4) *kgSV(-1), respectively. Barley and rice straw gave a specific methane yield of 229 and 195l(N) *kgVS(-1). Similar result was also obtained from tomato skins and seeds. Grape stalks and grape marcs produced lowest amounts of specific methane, respectively, 98 and 116l(N) CH(4) *kgSV(-1). According to trial results and considering the availability of examined biomasses in Italy, it is possible to estimate their total energetic potential close to a value of 21,900TJ *year(-1). This energetic potential value is equal to that obtainable from the anaerobic digestion of about 6.5 million tons of maize silage.
分批试验评估了水稻和大麦秸秆、葡萄秸秆、葡萄渣、玉米干燥残渣、番茄皮和籽以及乳清的沼气生产力潜力。试验在 2L 的玻璃消化器中进行，在 40°C 的恒温室内保持 40 天。就特定甲烷产量而言，最具生产力的生物质是乳清和玉米干燥残渣。它们的特定甲烷产量分别为 501 和 317L（N）CH4 *kgVS（-1）。大麦和水稻秸秆的特定甲烷产量分别为 229 和 195L（N）*kgVS（-1）。番茄皮和籽也获得了类似的结果。葡萄秸秆和葡萄渣产生的特定甲烷量最低，分别为 98 和 116L（N）CH4 *kgVS（-1）。根据试验结果，并考虑到意大利可获得的检查生物质，其总能量潜力估计接近 21900TJ *year（-1）。该能量潜力值相当于约 650 万吨玉米青贮的厌氧消化可获得的能量潜力。
