Carbon Footprint Assessment of Solid Waste Disposal of Saladan Subdistrict Municipality Krabi Province

Abstract

The objectives of this research were to: (1) study the Physical Characteristic solid waste generated by each source and (2) study the carbon footprint of them generation rate in 2022 to analyze waste composition and CO₂ emission from landfill disposal. The evaluation of carbon dioxide emission was calculated from emission factors (EF) in term of CO2 equivalent according to the guidelines of The Intergovernmental Panel on Climate Change (IPCC) and Thailand Greenhouse Gas Management Organization (Public Organization) (TGO). The result of the study showed that organic waste represents the largest portion in the waste stream (52.18 %), followed by plastic (19.37 %) and foam box (polystyrene) (14.65 %). The solid waste disposal of Saladan Subdistrict Municipality generated a total of 12,124.68 kgCO₂ eq per year. CO₂ emissions from each type of solid waste landfill 12,107.97 kgCO₂ eq per year and vehicle fuel used for landfill waste 16.71 kgCO₂ eq per year. In order to have less greenhouse gas emissions, the amount of waste brought to landfill should be reduced by having a waste sorting campaign from the source. A large amount of organic waste should be composted into bio-fertilizer, reused or brought through a new production process (Recycle) and created a long-term solid waste management plan to be ready for the public to participate, etc.