Hydrogen Sulfide Removal from Biogas Using Polyurethane Foam and Cellular Concrete Waste Biofilters: Experimental Evaluation and Comsol Simulation. CONECT. International Scientific Conference of Environmental and Climate Technologies, Riga, Latvia, p. 64, 2025. DOI: 10.7250/CONECT.2025.034. Disponível em: https://ect-journals.rtu.lv/conect/article/view/CONECT.2025.034.. Acesso em: 5 mar. 2026.