Extraction of copper from copper processing plant waste by leaching Saodat Mirzajanova, Malika Saidova, Gulnoza Beknazarova, Farrukh Tukhtamurodov and Hikmatulla Choriyev E3S Web of Conf., 525 (2024) 02020 Published online: 20 May 2024 DOI: 10.1051/e3sconf/202452502020