Modern methods of industrial wastewater treatment and softening Dilshod Olzhaev, Tulkin Nurmurodov, Navruzbek Khurramov, Mukhriddin Barakayev, Shabnam Mansurova and Kahramon Ganiev E3S Web of Conf., 525 (2024) 02003 Published online: 20 May 2024 DOI: 10.1051/e3sconf/202452502003