The feasibility of establishing an anaerobic digestion power plant for producing electricity, heat, and bio-fertilizer using a combined heat and power system using municipal solid waste in Sanandaj has been designed and simulated. The optimal condition for biogas production will be identified using an experimental design, and subsequently, modeling under optimal conditions was performed using Aspen Plus. The anaerobic digestion process was simulated under thermophilic conditions at a temperature of 55 °C, pressure of 1 atm, and retention time of 15 days. The daily biogas production amounted to 32,174 m3 from 380 tonnes of municipal solid waste. The daily production of electricity and heat was 2.9 MW and 3.3 MW, respectively. The daily production of bio-fertilizer was 48 tonnes. The electricity produced can meet approximately 3 % of Sanandaj's total demand. In addition to energy production from waste, the economic evaluation indicated that the project's net present value over a 20-year operational period was approximately 6333,333 €, demonstrating the project's economic viability. Furthermore, establishing this power plant will prevent 85,023 tonnes of CO2 annually. The results indicated the effectiveness of the designed plant in replacing power generation with fossil fuel and reducing greenhouse gas emissions.

中文翻译：

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沼气发电厂的技术经济分析：通过废物管理转向可持续能源供应和绿色环境


已经设计并模拟了在萨南达季建立厌氧消化发电厂的可行性，该发电厂使用城市固体废物的热电联产系统生产电力、热能和生物肥料。将使用实验设计确定沼气生产的最佳条件，然后使用 Aspen Plus 在最佳条件下进行建模。厌氧消化过程在温度为 55 °C、压力为 1 atm 和保留时间为 15 天的嗜热条件下模拟。每天从 380 吨城市固体废物中产生的沼气产量达到 32,174 立方米。电力和热能的日产量分别为 2.9 MW 和 3.3 MW。生物肥料的日产量为 48 吨。生产的电力可以满足 Sanandaj 总需求的约 3%。除了从废物中生产能源外，经济评估还表明，该项目在 20 年运营期间的净现值约为 6333,333 欧元，证明了该项目的经济可行性。此外，建立该发电厂每年将减少 85,023 吨二氧化碳排放。结果表明，设计后的发电厂在用化石燃料取代发电和减少温室气体排放方面的有效性。