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In this study, algae originating from Lake Agathis Universitas Indonesia was converted to biosorbent for removal of dye from water. The effectiveness of dye removal was evaluated using biomass (withou...t activation) and biomass activated by HCl+TEOS and Soxhletation+H_2SO_4 methods. Brilliant green was used to simulate dye wastewater, and the biosorption assays were conducted in a laboratory batch system. The results showed that the adsorbent activated by Soxhletation+H_2SO_4 was the most effective (Cpol = 80 mg/L; Cads = 0.5 g/L; 77% removal). Decolorization improved under alkaline pH, while high dye concentration and temperature showed the opposite effect. The adsorption isotherm and kinetic data fitted the Langmuir and the pseudosecond- order model, respectively.続きを見る
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