@article{almeida_vianna_lanero_lavagnolo_sgarbossa_bertani_quintaes_maia bila_campos_2026,  title={Valorization of spent coffee grounds using potassium hydroxide and concentrated leachate as activating agents in slow pyrolysis at 600°C: A comparative analysis of char properties},  volume={31},  ISSN={1413-4152},  url={https://doi.org/10.1590/S1413-415220250056},  DOI={10.1590/S1413-415220250056},  journal={Engenharia Sanitaria e Ambiental},  publisher={Associação Brasileira de Engenharia Sanitária e Ambiental - ABES},  author={Almeida, Ronei de and Vianna, Marcelo Mendes and Lanero, Francesco and Lavagnolo, Maria Cristina and Sgarbossa, Paolo and Bertani, Roberta and Quintaes, Bianca Ramalho and Maia Bila, Daniele and Campos, Juacyara Carbonelli},  year={2026},  pages={e20250056} }