Methane production generated by the biodegradation of municipal solid waste confined in lysimeters under a tropical climate

Autor: Almeida, Gustavo Henrique Tonelli Dutra de, Moretto, Renata Lima, Miguel, Miriam Gonçalves
Zdroj: International Journal of Environment and Waste Management; 2024, Vol. 35 Issue: 1 p98-116, 19p
Abstrakt: The generation of methane from municipal solid waste (MSW) confined in sanitary landfills is influenced by several factors, including climatic and operational conditions. This research evaluated the production of methane gas resulting from the anaerobic biodegradation process of MSW, produced in southeastern Brazil, confined in lysimeters for 30 months. The influence of climatic conditions and the effect of the application of saline solution on the MSW anaerobic biodegradation process were considered for methane production. The volumetric concentrations of methane peaks were significant in periods of high temperatures and after high rainfall. Five biodegradation phases were observed, from aerobic to anaerobic methanogenic phases. The methane peaks started in the initial methanogenic phase; however, the highest values were observed in the stable methanogenic phase. The application of the saline solution caused a delay of 100 days in the initial methanogenic phase and an increase of volumetric concentrations of methane over time.
Databáze: Supplemental Index