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首页> 外文期刊>International journal of green energy >Comparison effect of feedstock to inoculum ratios on biogas yields of cafeteria, vegetable, fruit wastes with cattle manure using co-digestion process
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Comparison effect of feedstock to inoculum ratios on biogas yields of cafeteria, vegetable, fruit wastes with cattle manure using co-digestion process

机译：混合消化法比较原料与接种物比例对食堂，蔬菜，水果废物与牛粪沼气产量的影响

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摘要

Cafeteria, vegetable, fruit, and cattle manure are available year around at low cost and have the potential to complement each other for anaerobic digestion (AD). The objectives of this study were to determine the preferred mixing ratios and effects of feedstock to inoculum ratios for the optimal biogas production. The mesophilic digestion tests were performed with five mixing ratios of CW, VW, FW with CM and five feedstock to inoculum (F/I) ratios using batch anaerobic digesters. Co-digestion of CW, VW, FW with CM was carried out at F/I ratios of 1.0, 2.0, 3.0, 4.0, and 5.0. The results showed that the F/I ratio significantly affected the biogas production rate. Increasing the CW, VW, FW in the CM resulted in an increased methane yield by decreasing the F/I ratios in the reactors from 5.0 to 1.0. The highest biogas yields of 591.3, 432.9, and 450.6L/kg VSfeed were obtained with CW/CM (50:50), VW/CM (25:75), and FW/CM (25:75) ratios, respectively. At five F/Is tested, after 45days of AD, the total biogas yields were determined to be 629.74, 552.64, 501.87, 464.66, and 396.04L and 496.93, 460.02, 420.5, 398.14, and 336.20L, and 455.03, 382.81, 349.78, 340.95, and 298.53L, respectively. However, the highest average CH4 contents obtained at an F/I of 1.0 were 62.14%, 60.72%, and 61.08% that are 5.87%, 9.47%, and 10.17% higher than those obtained at F/I ratio of 5.0 for CW/CM (50:50), VW/CM (25:75), and FW/CM (25:75), respectively.
机译：自助餐厅，蔬菜，水果和牛粪便可以廉价获得，并且有潜力相互补充进行厌氧消化（AD）。这项研究的目的是确定最佳的混合比例以及原料与接种物的比例对最佳沼气产量的影响。使用间歇厌氧消化器，以CW，VW，FW与CM的五种混合比例和五种原料与接种物（F / I）的比例进行了中温消化测试。以1.0、2.0、3.0、4.0和5.0的F / I比例进行CW，VW，FW与CM的共消化。结果表明，F / I比值显着影响沼气生产率。通过将反应器中的F / I比从5.0降低到1.0，CM中CW，VW，FW的增加导致甲烷产量的增加。以CW / CM（50:50），VW / CM（25:75）和FW / CM（25:75）的比例分别获得最高沼气产量591.3、432.9和450.6L / kg V​​Sfeed。在测试的5个F / I下，在AD的45天后，确定的总沼气产量为629.74、552.64、501.87、464.66和396.04L和496.93、460.02、420.5、398.14和336.20L，以及455.03、382.81、349.78 ，340.95和298.53L。但是，在F / I为1.0时获得的最高平均CH4含量分别为62.14％，60.72％和61.08％，比C / W在F / I为5.0时所获得的平均CH4含量分别高5.87％，9.47％和10.17％。 CM（50:50），VW / CM（25:75）和FW / CM（25:75）。

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