Univ. Bretagne Sud, FRE CNRS 3744, IRDL, F-56300 Pontivy, France; Centre d'Analyses et de Recherches, Unité de recherche Technologies et Valorisation Alimentaire, Faculté des Sciences, Université Saint-Joseph de Beyrouth, Beirut, Lebanon.
Univ. Bretagne Sud, FRE CNRS 3744, IRDL, F-56300 Pontivy, France.
Waste Manag. 2016 Apr;50:275-82. doi: 10.1016/j.wasman.2016.02.028. Epub 2016 Mar 2.
In this study, we have estimated the biogas and methane production from grape pomace (variety Cabernet Franc). The physical and chemical characteristics of the raw material were determined, and the structural polysaccharides were identified and analyzed by the Van Soest method. Batch anaerobic digestions were carried out to assess the methane production of the grape pomace, pulp and seeds. The obtained cumulative methane productions are 0.125, 0.165 and 0.052 Nm(3) kg COD(-1) for grape pomace, pulps and seeds, respectively. The effect of grinding on the methane potential of the substrates, as a mechanical pretreatment, was evaluated. We found that it increased the anaerobic biodegradability for grape pomace, pulp and seeds by 13.1%, 4.8% and 22.2%, respectively. On the other hand, the methane potential of the grape pomace was determined in a laboratory pilot plant (12L) continuously mixed with an organic loading rate of 2.5 kg COD m(3) d(-1) and a hydraulic retention time of 30 days. The corresponding biogas production was 6.43 × 10(-3) Nm(3) d(-1), with a methane content of 62.3%. Thus, the pilot plant's efficiency compared to that achieved in the batch process was 81.2%. Finally, a significant correlation was found between the biochemical content and methane production.
在这项研究中，我们估算了葡萄渣（品系品丽珠）的沼气和甲烷产量。测定了原料的物理化学特性，并采用 Van Soest 法对结构多糖进行了鉴定和分析。进行了分批厌氧消化实验，以评估葡萄渣、浆和籽的甲烷产量。获得的累积甲烷产量分别为 0.125、0.165 和 0.052 Nm(3) kg COD(-1)。作为一种机械预处理方法，考察了粉碎对底物甲烷潜力的影响。结果发现，粉碎分别提高了葡萄渣、浆和籽的厌氧生物降解性 13.1%、4.8%和 22.2%。另一方面，在实验室中使用 12L 连续混合的中试工厂，以 2.5 kg COD m(3) d(-1)的有机负荷率和 30 天的水力停留时间，对葡萄渣的甲烷潜力进行了测定。相应的沼气产量为 6.43 × 10(-3) Nm(3) d(-1)，甲烷含量为 62.3%。因此，中试工厂的效率与分批工艺相比提高了 81.2%。最后，发现生物化学含量与甲烷产量之间存在显著相关性。
