Biosorption of Brilliant Green Dye from Synthetic Wastewater by Modified Wild Algae Biomass

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Abstract

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 (without activation) and biomass activated by HCl+TEOS and Soxhletation+H2SO4 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+H2SO4was 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.

Original languageEnglish
Pages (from-to)133-140
Number of pages8
JournalEvergreen
Volume9
Issue number1
DOIs
Publication statusPublished - 2022

Keywords

  • Adsorption
  • Algae
  • Biosorbent
  • Brilliant Green

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