Estimasi Emisi Gas Rumah Kaca (GRK) di TPA Benowo Menggunakan Model LandGem

Prilindatami, Rimadhani (2024) Estimasi Emisi Gas Rumah Kaca (GRK) di TPA Benowo Menggunakan Model LandGem. Undergraduate thesis, UPN Veteran Jawa Timur.

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Abstract

Greenhouse gases (GHG) are dangerous gases that cause global warming, including methane and carbon dioxide. Greenhouse gas emissions are dominated by waste management activities. Benowo TPA is a TPA that manages the waste of the residents of Surabaya City. The more waste that is piled up in the landfill, the more gas is produced. The aim of this research is to estimate and evaluate the occurrence of methane gas and carbon dioxide gas at the Benowo landfill. This research uses the LandGem model, a greenhouse gas emissions model that focuses on solid waste management in landfills. This methodology requires a detailed analysis of greenhouse gas (GHG) emission sources which are generally associated with waste decomposition activities. Research steps include a field survey to collect primary data regarding waste generation and composition at the Benowo landfill. This data is then used as input to the LandGem model to produce estimates of methane and carbon dioxide emissions. This research was carried out with 6 scenarios varying the methane concentration and k value with the aim of determining the influence of both on the LandGem model. Variations in these scenarios are methane concentrations of 40%, 50% and 60%, and k values of 0.02 and 0.7. The research results showed that the highest estimates of methane gas and carbon dioxide gas were in scenario 6 which used a methane concentration of 60% and a k value of 0.7 (wet area). The estimated values of methane and carbon dioxide gas are 6.801 x 107 m3/year and 4.534 x 107 m3/year. This happens because methane gas is calculated to be 60% while carbon dioxide gas is only 40%, and the k value means that the landfill area has high rainfall and there is a bioreactor or leachate circulation system. This value is considered a good value for the growth of bacteria in the landfill so that it produces more gas.

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Thesis (Undergraduate)

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