Optimum conditions for absorption of copper (Cu) from its solution using durian skin waste biomass (Duriobzibethinus)

Abstract This study aimed to determine the optimum conditions for durian skin biomass absorb copper metal (Cu) from its solution. Determination of includes weight, pH biosorption, biosorption contact time, and initial concentration (Cu). adsorbed analyte used Atomic Absorption Spectrophotometry (AAS). In this study, was obtained local waste Parigi Regency, Central Sulawesi Province. The parameters tested were weight adsorbent or powder with variations 50 mg, 70 90 110 120 in time 20 minutes, 40 60 80 2, 3, 4, 5, 6 ppm, 100 150 200 250 ppm adsorption results indicate that absorption by respectively, mg an capacity 99.08%, minutes 98.31%, 5 99.72% 98.92%.