Department of Chemistry, Physics and Environment, University of Udine, Via del Cotonificio 108, 33100 Udine, Italy.
Waste Manag. 2013 Jul;33(7):1626-32. doi: 10.1016/j.wasman.2013.03.020. Epub 2013 Apr 28.
The aim of this study is to characterize different types of source selected organic fraction of municipal solid waste (SS-OFMSW) in order to optimize the upgrade of a sewage sludge anaerobic digestion unit by codigestion. Various SS-OFMSW samples were collected from canteens, supermarkets, restaurants, households, fruit-vegetable markets and bakery shops. The substrates characterization was carried out getting traditional chemical-physical parameters, performing elemental analysis and measuring fundamental anaerobic digestion macromolecular compounds such as carbohydrates, proteins, lipids and volatile fatty acids. Biochemical methane potential (BMP) tests were conducted at mesophilic temperature both on single substrates and in codigestion regime with different substrates mixing ratios. The maximum methane yield was observed for restaurant (675 NmlCH4/gVS) and canteens organic wastes (571 and 645 NmlCH4/gVS). The best codigestion BMP test has highlighted an increase of 47% in methane production respect sewage sludge digestion.
本研究旨在对不同类型的城市固体废物源选择有机部分（SS-OFMSW）进行特征描述，以便通过共消化优化污水污泥厌氧消化单元的升级。从食堂、超市、餐馆、家庭、水果蔬菜市场和面包店收集了各种 SS-OFMSW 样品。通过获得传统的化学-物理参数、进行元素分析以及测量碳水化合物、蛋白质、脂质和挥发性脂肪酸等基本厌氧消化大分子化合物来进行底物特征描述。在中温条件下，对单一组分和不同底物混合比例的共消化条件下进行了生物甲烷潜力（BMP）测试。从餐厅（675 NmlCH4/gVS）和食堂有机废物（571 和 645 NmlCH4/gVS）中观察到最大的甲烷产率。最佳共消化 BMP 测试显示，与污水污泥消化相比，甲烷产量增加了 47%。
