Assessment of landfill gases by LandGEM and energy recovery potential from municipal solid waste of Robat Karim

Autor: Ebrahimi toloun, Seyed Akbar, Khoramnejdian, Shahrzad, Zavareh, Sayed Reza Asemi, Behbahaninia, Azita
Zdroj: Biomass Conversion and Biorefinery; 20240101, Issue: Preprints p1-10, 10p
Abstrakt: Enormous volumes of municipal trash created in the city of Robat Karim are annually digested by microorganisms in anaerobic disposal sites, resulting in large amounts of gas. The goal of this research is to use LandGEM software to estimate the quantity of methane gas generated by the Robat Karim landfill and the viability of extracting electricity from it. This descriptive cross-sectional research was conducted in the city of Robat Karim in the province of Tehran. Physical waste analysis was done as the first step of this investigation. The latest census in 2016 by The Statistical Center of Iran showed a population of 105,393 people in 31,803 households. It is located 27 km (17 mi) southwest of Tehran. The constant amount of methane emissions and the amount of methane production potential in the landfill of Robat Karim city were acquired in the third step, and the quantity of landfill gases was computed in the fourth stage by inputting the information received in the program. The landfill gases of Robat Karim city were explored by assuming a volume proportion of 50% methane and calculating 170 m3/Mg as the gas production potential coefficient and 0.050 y−1emissions as the methane production rate. According to the findings, the total quantity of landfill gas, methane, carbon dioxide, and non-methane organic matter in terms of mg per year was 3612, 9647, 2647, and 622, respectively, in 2022. It was discovered that the volume of landfill gases produced in Robat Karim city over time followed the standard trend of landfill gas production. Based on these findings, initiatives to utilize methane gas for energy production and measures to limit greenhouse gas emissions into the environment are recommended.
Databáze: Supplemental Index