Ersahin M Evren, Gomec Cigdem Yangin, Dereli R Kaan, Arikan Osman, Ozturk Izzet
Department of Environmental Engineering, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey.
J Biomed Biotechnol. 2011;2011:953065. doi: 10.1155/2011/953065. Epub 2010 Dec 28.
Energy recovery potential of a mesophilic co-digester treating OFMSW and primary sludge at an integrated biomethanization plant was investigated based on feasibility study results. Since landfilling is still the main solid waste disposal method in Turkey, land scarcity will become one of the most important obstacles. Restrictions for biodegradable waste disposal to sanitary landfills in EU Landfill Directive and uncontrolled long-term contamination with gas emissions and leachate necessitate alternative management strategies due to rapid increase in MSW production. Moreover, since energy contribution from renewable resources will be required more in the future with increasing oil prices and dwindling supplies of conventional energy sources, the significance of biogas as a renewable fuel has been increased in the last decade. Results indicated that almost 93% of annual total cost can be recovered if 100% renewable energy subsidy is implemented. Besides, considering the potential revenue when replacing transport fuels, about 26 heavy good vehicles or 549 cars may be powered per year by the biogas produced from the proposed biomethanization plant (PE = 100,000; X(PS) = 61 g TS/PE·day; X(SS-OFMSW) = 50 g TS/PE·day).
基于可行性研究结果，对某综合生物甲烷化厂中处理有机生活垃圾（OFMSW）和初沉污泥的中温共消化器的能量回收潜力进行了研究。由于填埋仍是土耳其主要的固体废物处理方式，土地稀缺将成为最重要的障碍之一。欧盟《填埋指令》对可生物降解废物进入卫生填埋场的限制，以及气体排放和渗滤液造成的长期无控制污染，随着城市固体废弃物（MSW）产量的快速增长，需要采取替代管理策略。此外，随着油价上涨和传统能源供应减少，未来对可再生资源能源贡献的需求将增加，因此在过去十年中，沼气作为可再生燃料的重要性日益凸显。结果表明，如果实施100%的可再生能源补贴，几乎可以收回年度总成本的93%。此外，考虑到替代运输燃料时的潜在收入，拟建生物甲烷化厂产生的沼气每年可为约26辆重型货车或549辆汽车提供动力（PE = 100,000；X(PS) = 61 g TS/PE·天；X(SS - OFMSW) = 50 g TS/PE·天）。
