Fixed bed in dark fermentative reactors: is it imperative for enhanced biomass retention, biohydrogen evolution and substrate conversion? - Araujo, Matheus N.; Fuess, Lucas Tadeu; Cavalcante, Willame de Araújo; Couto, Pâmela Talita do; Rogeri, Renan Coghi; Adorno, Maria Angela Tallarico; Sakamoto, Isabel Kimiko; Zaiat, Marcelo (International Journal of Hydrogen Energy, 2023)