Remediation of polyvinyl chloride from water by UV/sulfate radical-based advanced oxidation process.

Abstract

In this study, polyvinyl chloride (PVC) remediation was carried out using advanced oxidation, which generates sulfate radicals during ultraviolet (UV) irradiation. Because PVC is durable and does not break down on its own, and because it contains harmful chemicals such as vinyl chloride and phthalates, it poses risks to our environment and health. Researchers are focusing on UV-activated persulfate because it generates sulfate and hydroxyl radicals that help break down PVC particles in water. Using UV-visible spectrophotometry, the study tracks PVC degradation. It evaluates the effects of persulfate concentration, pH, temperature, inorganic and transition-metal ions, natural organic matter, and PVC content in the mixture. The findings reveal that the method works best when the water is alkaline and the persulfate dose is appropriate.