The assessment of claystone, quartz and coconut shell charcoal for adsorbing heavy metals ions in acid mine drainage

Abstract

This research aims to determine the assessment of claystone, quartz and coconut shell charcoal for adsorbing heavy metals ions in acid mine drainage. Claystone is activated by using NaOH 3M, quartz sand is activated by using Na2CO3, while coconut shell charcoal is activated with HCl 4M. The adsorbent characterization was done by Fourier Transform Infrared Analyzer (FTIR) and X-Ray Diffraction (XRD). The results of the characterization of claystone FTIR showed the presence of active groups of silanol (Si-OH) and aluminol (Al-OH), XRD claystone characterization showed the presence of montmorillonite, kaolinite, illite and quartz minerals. While the results of FTIR characterization of quartz sand showed the presence of active groups of silanol (Si-OH) and siloxan (Si-O-Si), XRD characterization of quartz sand showed the presence of quartz mineral content. Furthermore, coconut shell charcoal showed the presence of hydroxyl (OH) and carboxyl active groups. (COOH) which is known from FTIR analysis as well as the mineral content of cristobalite, fayalite and manganoan which are known from XRD analysis. From the results of the FTIR and XRD analysis, it can be concluded that the three adsorbents have the potential as adsorbents. So that they can be used as an acid mine water absorber.