Di Trapani D, Mannina G, Nicosia S, Viviani G
Dipartimento DICAM, Università degli Studi di Palermo, Scuola Politecnica, Viale delle Scienze, 90128 Palermo, Italy.
Water Sci Technol. 2018 Jun;77(9-10):2426-2435. doi: 10.2166/wst.2018.193.
Municipal solid waste (MSW) landfills now represent one of the most important issues related to the waste management cycle. Knowledge of biogas production is a key aspect for the proper exploitation of this energy source, even in the post-closure period. In the present study, a simple mathematical model was proposed for the simulation of biogas production. The model is based on first-order biodegradation kinetics and also takes into account the temperature variation in time and depth as well as landfill settlement. The model was applied to an operating landfill located in Sicily, in Italy, and the first results obtained are promising. Indeed, the results showed a good fit between measured and simulated data. Based on these promising results, the model can also be considered a useful tool for landfill operators for a reliable estimate of the duration of the post-closure period.
城市固体废弃物（MSW）填埋场如今是与废弃物管理周期相关的最重要问题之一。即便在填埋场关闭后阶段，了解沼气产生情况也是合理开发这种能源的关键因素。在本研究中，提出了一个用于模拟沼气产生的简单数学模型。该模型基于一级生物降解动力学，还考虑了时间和深度上的温度变化以及填埋场沉降。该模型应用于意大利西西里岛的一个正在运营的填埋场，获得的初步结果很有前景。实际上，结果表明实测数据与模拟数据拟合良好。基于这些有前景的结果，该模型也可被视为填埋场运营商的一个有用工具，用于可靠估算关闭后阶段的时长。
