نوع مقاله : مقاله پژوهشی
گروه علوم محیط زیست، دانشکده علوم، دانشگاه زنجان، زنجان، ایران
عنوان مقاله [English]
Systematic management of waste as a principle of sustainable development is considerable from health- environmental perspectives. Sanitary disposal of waste with methane extraction meet these goals and also consider renewable energy extraction.
This study paid to the potential of methane extraction during period of 24 years (1997-2021) in Zanjan landfill (Mehtarchiee), based on quantity and quality of Zanjan wastes in three time section (2004, 2009 and 2016). For this purpose, the proposed model by Intergovernmental Panel on Climate Change (IPCC Waste Model), the effect of climate (temperature and humidity) on extractions and time pattern of emissions are studied. Results indicated that due to the high percentage of decomposable organic compounds (60-70%) and relative humidity (69%), Zanjan's wastes have a high potential for methane extraction. During the study period, 43.34 Gg of methane and an ascending- descending pattern have been emited. The best climatological conditions are warm-humid and temperate- wet, respectively.
Waste incineration in compare with sanitary disposal (with methane extraction), despite a significant reduction in volume and rapid energy recovery, is not a good option due to the high humidity level and limitation of combustible material and faced with environmental consequences.