EVALUATION OF THE EFFICIENCY OF POLYSULFIDE SORBENTS IN THE REMOVAL OF HEAVY METAL IONS FROM WASTEWATER OF OIL AND GAS PROCESSING PLANTS

Abstract

This article investigates the adsorption efficiency of polysulfide sorbents synthesized from local raw materials in selectively removing heavy metal ions- specifically Fe2+, Cu2+, Zn2+ and Pb2+- from industrial wastewater obtained from oil and gas processing facilities. The study tested PSK-1, PSK-2, and SMED-8 grade sorbents, evaluating their adsorption capacity, selectivity, and reusability. Analytical assessments were conducted using UV–Vis spectrophotometry and atomic absorption spectroscopy (AAS). The experimental results demonstrated that the SMED-8 sorbent exhibited high efficiency and long-term operational stability. This development holds significant promise for the advancement of environmentally friendly and economically feasible sorption technologies.