Hydrothermal Carbonization of Sludge Digestate – Optimization for Energy Application. CONECT. International Scientific Conference of Environmental and Climate Technologies, Riga, Latvia, p. 121, 2025. DOI: 10.7250/CONECT.2025.071. Disponível em: https://ect-journals.rtu.lv/conect/article/view/CONECT.2025.071.. Acesso em: 6 mar. 2026.