Abstract:
Thailand is one of the largest producers and exporters of agricultural and food products in the world, including tapioca, fresh and frozen corn. In this process produce high organic wastewater its can be used to produce biogas. From various environmental impact analyst conducted in recent years have shown that in comparison to use of fossil fuels, using biogas production or bio methane for power generation lead to reduced greenhouse gas emission. Most of them have assessed the sustainability of biogas production for base load electricity generation. The aim of this study was to evaluate Life Cycle Assessment (LCA) based on primary and secondary data associated with the generation of electricity from biogas produced by anaerobic digestion of agricultural products. The functional unit of the study is 1 kW electricity per hour. Results show that global warming potential (GWP) is identified as the most significant environmental impact category followed by acidification potential (AP), Eutrophication potential (EP), photochemical oxidation potential (POCP), and human toxicity potential (HTP).The economic value assessment of the biogas power plant the results show that Payback Period (PB) is 4.5 years, Net Present Value (NPV) 11,661,614.53 Bath, Internal Rate of Return (IRR) 21%