State of the art of technologies for Zn2+ ions removal from industrial effluents with adsorption: Examination of process parameters (Part I)

Adsorption technology is an eco-friendly approach for Zn2+ ions removal. For that, she attracted a great deal of attention in the last decades as a cost-efficient method for industrial effluents treatment. This paper documents the results of most recent studies removal of these ions from industrial effluents by adsorption onto several materials. The maximum adsorption efficiency of each adsorbent was optimized in terms of various operating conditions. In this paper, the influence of operational parameters such as solution pH, contact time, adsorbent dosage, particle size, temperature of the aqueous solution, initial zinc concentration and agitation speed has been presented and discussed.