Study on the Effectiveness of Cu² + Ions Removal from Aqueous Solutions Using the Purolite S920 Ion Exchange Resin

Abstract

Anthropogenic environmental pollution with heavy metals remains a significant problem, especially when they occur in a form that facilitates bioaccumulation. In the case of natural and process waters or industrial wastewater, there is still a need to improve methods, which provide to reduce heavy metal content. In this study has been shown to the Purolite S920 is useful to eliminating Cu 2+ ions from aqueous solutions. In the tested concentration range, 92% purification of single-component solutions from Cu 2+ ions were achieved at pH=4 (in laboratory conditios). The process of copper (II) ion removal using the chelating ion exchange resin was interpreted based two of the most popular isotherm models: Langmuir and Freundlich.