Pemanfaatan Adsorben sebagai Jerami Padi yang Diaktivasi dengan HCl untuk Menyerap Logam Zn (II) Dari Limbah Elektroplatting

Abstract

Have done absorption of zinc metal (Zn) from wastewater using adsorbents elektroplatting derived from rice straw with rice straw delignification first using 3% NaOH solution at 70 ° C were analyzed by FT-IR spectrophotometry showed that the analysis of adsorbent tape uptake 3367.71 cm-1 shows the -OH groups of the cellulose and the absorption band 2889.37 and 789.53 (-CH) where the absorption band 2889.37 cm-1 -CH stretching and 789.53 cm-1 -CH buckling. Absorption band 1095.57 cm-1 shows the CO group of cellulose. Furthermore, the adsorbent is activated with 0.2 M HCl concentration; 0,6M; 1M at a temperature of 105 ° C. The adsorbent is added to the rice straw waste electroplating the pH varied from pH 4-8 and the results are analyzed using Atomic Absorption Spectrophotometry. AAS analysis of the results obtained by the percentage decrease in Zn metal is optimum at pH 8 is 94.03% Zn metal concentrations obtained 0.9470 mg / L.