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PENGGUNAAN KARBON AKTIF GRANULAR SEBAGAI ADSORBEN LOGAM CU(II)DI AIR LAUT KENJERANGRANULAR ACTIVATED CARBON USED AS ADSORBENT FOR REMOVALCOPPER METAL IN KENJERAN SEAWATER NURUL ISLAMIYAH, SITI
Unesa Journal of Chemistry Vol 3, No 3 (2014): Volume 3, Number 3, 2014
Publisher : Unesa Journal of Chemistry

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Abstract

Abstrak. Tujuan dari penelitian ini adalah untuk mengetahui massa dan waktu kontak optimum, model isothermadsorpsi serta efisiensi adsorpsi karbon aktif granular sebagai adsorben logam Cu(II) di Air Laut Kenjeran.Metode yang digunakan adalah post test only control group design. Analisis kuantitatif terhadap konsentrasiCu, diperoleh menggunakan alat Spektrofotometri Serapan Atom (SSA) tipe AAnalyst 100. Hasil yang diperolehmenunjukkan bahwa kondisi optimum massa sebesar 1 gram dan waktu kontak 60 menit digunakan untukmengetahui kadar logam Cu(II) di air laut Kenjeran. Menggunakan model isoterm Langmuir diperolehkapasitas adsorpsi sebesar 0,177 mg/g, konstanta Langmuir sebesar 171,2 mg/L-1 dengan efisiensi adsorpsisekitar 63-85%.Kata kunci:adsorpsi, karbon aktif granular, logam CuAbstract. The aims of this research were to know the optimum of mass, contact time, adsorption isotherm modelsand eficiency of granular activated carbon used as adsorbent for removal copper metal in Kenjeran seawater.The post test only control group design was used as the research method. Atomic Absorption Spectrophotometry(AAS) type AAnalyst 100 was used to quantitive analysis of copper concentration. The results showed optimumcondition of mass was 1 gram with contact time in the 60th minute used to adsorb Cu (II) in the Kenjeranseawater. Respectively using Langmuir isotherm models the adsorption capacity was 0.177 mg/g, Langmuirequilibrium constant was 171,2 mg/L-1 with adsorption efficiency 63-85%.Keywords:Adsorption, granular activated carbon, copper