Obtaining sorbents based on bentonite and wastewater treatment of hydrometallurgical plantsKakhramon Husenov, Togaymurot Aliev, Norbek Allayorov, Maftuna Ibragimova, Zokir Karimov and Zamira AbdiramanovaE3S Web Conf., 548 (2024) 04007DOI: https://doi.org/10.1051/e3sconf/202454804007