Valorization of urban biosolids for sustainable hydrogen production through steam gasification over silicon oxide sandYoussef Boutarba, Abdellah Benzaouak, Majda Ben Ali, Soukaina Nehhal, Bechara Taouk, Adnane El Hamidi, Abdelkbir Bellaouchou and Lokmane AbdelouahedE3S Web Conf., 675 (2025) 01012DOI: https://doi.org/10.1051/e3sconf/202567501012