EVALUATION OF THE EFFICIENCY OF POLYSULFIDE SORBENTS IN THE REMOVAL OF HEAVY METAL IONS FROM WASTEWATER OF OIL AND GAS PROCESSING PLANTS. the Conf. Hub [Internet]. 2025 Sep. 8 [cited 2026 Feb. 1];:16-9. Available from: https://theconferencehub.com/index.php/tch/article/view/492