Ion exchange treatment of industrial waste containing multiple metal ions using resins
Loading...
Date
2019-06
Authors
Nurulamilina Binti Tusiman
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Heavy metal contamination of water bodies is a serious issue as metal in drinking water can cause diseases to humans. Thus the removal and recovery of heavy metals from effluent streams is essential to protection of the environment. In this study cation resin used are Amberlyst 15 H+ and Amberlite IR 120 Na+ resins to remove zinc and nickel. Comparison of which metal is being selectively remove between these two resin and to identify the performance of resins on the metals removal. The parameter that consider in this study are the varied concentration of the sample from 200 to 1000 mg/L, contact time between 5 to 120 minutes, and also weight of the resin was from 5 to 15 g with constant stirring speed of 200 rpm and temperature of 25°C. From the result, the zinc has higher selectivity than nickel as it has larger ionic radius than nickel. The resin achieve sorption capacity is at 30 minutes. Increasing amount of resin provides greater surface area and sorption sites. For characterization of resin, the resin will show rough surface after being loading with resin. The sorption capacity and removal percentage of the metal was calculated using formulas. In this study, zinc have highly selectivity compared to nickel as it has high electron affinity. Amberlite IR 120 Na+ resin showed better performance than Amberlyst 15 H+ resin as it showed higher removal percentage and sorption capacity for both metal as it has higher exchange capacity.