Performance Column Adsorption of Methylene Blue Using Composite Spent Coffe Ground-Copper Ferrites SCG/ CuFe2O4 1Zulhipri 2Nadiroh and 3Erdawati
Universitas Negeri Jakarta
Abstract
Composite Spent Coffe Ground-Copper Ferrites (SCG/CuFe2O4) were synthesized by a prepitation method. Copper nitrate, ferri nitrate, SCG and sodium hydroxide mixed and stirred at 80oC for 5h, then calcined at 600oC for 2 h. The resulting product is characterized by SAA This study aims to determine capacity adsorption of SCG/CuFe2O4 to adsorb Methylen Blue (MB) with a column system.Approximately 0.5 of SCG/CuFe2O4 were packed into the column. Infusion tube filled with 250 mL MB 20 mg.L-1 was adjusted to pH 10, passed through a column at flow rate 0.8 mL/min and 1.2 mL/min. The results obtained show that the slower the flow rate, the adsorption capacity (q0) and Thomas constant (kTh) Pb2 + ions increase. The highest q0 and kTh values were obtained at a flow rate of 0.8 L / min at 80.133 mg / g, 0.0028 L / mg. Minutes.Desorption of CuFe2O4 with 0.1 M HCl solution show that with 3 times elution, all MB which are bound to the adsorbent can be released
Keywords: SCG/CuFe2O4, adsorbent, column method, methylene Blue.Thomas model
