Biological purification of polluted waters as a factor in sustainable environmental managementBolotbek Karimov, Zhazgul Abdyrakhmanova, Dinara Emilbekova, Totigul Kholmuradova and Gulbarchin IsrailovaE3S Web of Conf., 537 (2024) 07002DOI: https://doi.org/10.1051/e3sconf/202453707002