Di Maria Francesco, Benavoli Manuel, Zoppitelli Mirco
Dipartimento di Ingegneria Industriale, Universita degli Studi di Perugia, Via G. Duranti 1A/4, 06125 Perugia, Italy.
Waste Manag. 2008;28(5):805-12. doi: 10.1016/j.wasman.2007.03.021. Epub 2007 May 18.
Waste management is of the utmost importance for many countries and especially for highly developed ones due to its implications on society. In particular, proper treatment before disposal of the solid urban waste organic fraction is one of the main issues that is addressed in waste management. In fact, the organic fraction is particularly reactive and if disposed in sanitary landfills without previous adequate treatment, a large amount of dangerous and polluting gaseous, liquid and solid substances can be produced. Some waste treatment processes can also present an opportunity to produce other by-products like energy, recycled materials and other products with both economic and environmental benefits. In this paper, the aerobic treatment of the organic fraction of solid urban waste, performed in a biocell plant with the possibility of recovering heat for civil or industrial needs, was examined from the thermodynamic point of view. A theoretical model was proposed both for the biological process of the organic fraction, as well as for the heat recovery system. The most significant results are represented and discussed.
由于对社会的影响，废物管理对许多国家尤其是高度发达国家至关重要。特别是，城市固体有机废物在处置前的适当处理是废物管理中要解决的主要问题之一。事实上，有机部分特别具有反应性，如果在没有事先充分处理的情况下处置在卫生填埋场中，会产生大量危险和污染性的气体、液体和固体物质。一些废物处理过程也可能提供产生其他副产品的机会，如能源、回收材料和其他具有经济和环境效益的产品。本文从热力学角度研究了在生物池工厂中对城市固体有机废物进行好氧处理，并有可能回收热量用于民用或工业需求的情况。针对有机部分的生物过程以及热回收系统提出了一个理论模型。展示并讨论了最重要的结果。
