نيلوفر الماسي

An effective method for efficient management of organic waste, and recovering a good amount of renewable energy without significant emissions of greenhouse gases is some of the anaerobic digestion usages. In many countries, including Iran, landfilling is still the main way of waste disposal, which causes many environmental troubles. The main purpose of this study is to investigate the feasibility of constructing an anaerobic digestion power plant using municipal solid waste in Sanandaj for generating electricity, heat, and fertilizer simultaneously. ASPEN Plus software is also has been used to simulate this model. The process of anaerobic digestion under thermophilic conditions at 55 ° C, the pressure of one atmosphere, and a residence time of 15 days has been simulated. The optimal model for biogas production was obtained by using the Design-Expert software, cost and efficiency were two objectives for optimization. 32,174 cubic meters of biogas produces daily from 380 tons of municipal solid waste. 2.9 MW and 3.3 MW of electricity and heat generate daily. The generated electricity can supply approximately 3% of the total electricity required in Sanandaj. Furthermore, 48 tons of organic fertilizer are produced daily. The economic eva‎luation indicates that the net present value of the project during the 20 years of operation is approximately equal to a positive amount of 95 billion tomans, which demonstrates the economic efficiency of this study. Also, the construction of this power plant will prevent the emission of 85023 tons of carbon dioxide per year.

هضم بي هوازي , پسماند جامد شهري , انرژي تجديدپذير , اسپن پلاس , بيوگاز

anaerobic digestion , municipal solid waste , renewable energy , aspen plus , biogas

niloofar almasi

meisam farjollahi