Greenhouse Gas Emission Inventory at Benowo Landfill Using IPCC Method

Abstract

Potentially contribute 296 MTon CO₂ eq (10.32%) of total greenhouse gas (GHG) emissions by 2030, with an annual growth projection of 6.3% using the Business As Usual (BAU) projection from 2010 to 2030. Approximately seventy percent of all waste is organic, making household waste one of the primary sources of urban waste. This study was conducted at the Benowo Landfill in Surabaya City. The SNI 19-3964-1994 method was used to sample the waste composition and generation at the landfill. Waste generation projections considering population growth were made up to 2030. This study compares methane gas emissions from three scenarios: scenario 1, waste is directly landfilled; scenario 2, waste is reduced through composting and 3R processing; and scenario 3, waste is processed at the landfill through gasification. Inventory calculations using the 2006 IPCC guidelines show that the highest greenhouse gas emissions (CO₂ and CH₄) come from the landfilling scenario, with the most significant CH₄ emissions and the most minuscule CO₂ emissions. The gasification scenario produces the most essential CO₂ and minuscule CH₄ emissions due to using aerobic systems and combustion.