Techno-Economic Evaluation of Biogas Production from Organic Waste Using SuperPro Designer

The growing emphasis on sustainable energy has intensified interest in producing biogas from organic waste, recognized as a renewable and environmentally friendly alternative. This study focuses on the economic analysis and evaluation of biogas generation from cow dung through anaerobic digestion, utilizing the SuperPro Designer software. The process model encompasses key stages such as waste handling, slurry preparation, anaerobic digestion, and biogas recovery. Material and energy balances, along with equipment sizing and economic assessments, were conducted using the software’s integrated tools. Essential economic metrics including total capital investment, operating costs, net profit, payback period, and return on investment were calculated based on practical assumptions. The findings reveal an annual methane output of approximately 6.16 million kilograms, generating estimated revenue of USD 1.85 million. The total capital investment required was assessed at USD 2.37 million, paired with annual operating costs of approximately USD 1.25 million. This yields an annual net profit of around USD 0.39 million, a payback period of 6 years, and a return on investment (ROI) of 16%. These outcomes validate both the technical feasibility and the economic sustainability of biogas production from cow dung. Furthermore, they highlight the effectiveness of SuperPro Designer as a valuable decision-support tool for the design and optimization of sustainable biogas systems.