Department of Environmental Engineering, University of Patras, 2 Seferi Str, 30100, Agrinio, Greece.
Department of Chemical Engineering, University of Patras, 1 Karatheodori Str, University Campus-Rio, 26504, Patras, Greece.
Chemosphere. 2022 Jun;296:133985. doi: 10.1016/j.chemosphere.2022.133985. Epub 2022 Feb 14.
Greece produces significant amounts of residual biomass due to its intense agricultural and agro-industrial sector. The anaerobic digestion process has been frequently considered as the best environmental and economic solution for energy recovery from different biodegradable waste such as agricultural waste, livestock manure, agro-industrial waste, as well as for their co-digestion. The aim of this study was the assessment of biochemical methane potential (BMP) of biomass feedstocks representative of Northern and Southern Greece, which are available during the fall/winter and spring/summer seasons, through the implementation of BMP assays. The raw residues evaluated in the current work included: (a) crop residues (corn silage and unsuitable for human consumption watermelon), (b) agro-industrial residues (malt, tomato processing residues, orange peels and olive pomace) and (c) livestock (cattle) manure. Tests of both single substrates and various mixtures were conducted for the evaluation of their methane yields. The results of the mono-substrates are in accordance with other studies in the literature, with watermelon presenting the highest methane potential (421.0 ± 3.4 ml CH/g VS). After the evaluation of the mixtures and mono-substrates results, the most promising mixtures seemed to be the following: a) for Northern Greece, 10% corn silage-80% cattle manure-10% malt, b) for Southern Greece spring/summer season, 10% corn silage-14% cattle manure-66% watermelon-10% tomato processing residues, and c) for Southern Greece fall/winter season, 10% corn silage-57% cattle manure-23% orange peels-10% olive pomace.
希腊由于其密集的农业和农业综合企业部门，产生了大量的剩余生物质。厌氧消化过程经常被认为是从不同可生物降解废物（如农业废物、牲畜粪便、农业综合企业废物）中回收能源的最佳环境和经济解决方案，也可用于它们的共消化。本研究的目的是通过实施生化甲烷潜力（BMP）测定，评估代表希腊北部和南部的生物质饲料原料的生化甲烷潜力（BMP）。在秋季/冬季和春季/夏季期间可获得当前工作中评估的原始残留物包括：（a）农作物残留物（玉米青贮料和不适宜人类食用的西瓜），（b）农业综合企业残留物（麦芽、番茄加工残留物、橙皮和橄榄渣）和（c）牲畜（牛）粪便。对单底物和各种混合物进行了测试，以评估其甲烷产量。单底物的测试结果与文献中的其他研究一致，西瓜表现出最高的甲烷潜力（421.0±3.4ml CH/g VS）。在评估混合物和单底物的结果后，最有前途的混合物似乎是以下几种：a）对于希腊北部，10%玉米青贮料-80%牛粪-10%麦芽，b）对于希腊南部春季/夏季，10%玉米青贮料-14%牛粪-66%西瓜-10%番茄加工残留物，c）对于希腊南部秋季/冬季，10%玉米青贮料-57%牛粪-23%橙皮-10%橄榄渣。
