engleski

Removal of Congo red using waste wood biomass as adsorbent

In this study, poplar (deciduous hardwood) and fir (coniferous softwood) sawdusts were used as adsorbents for the removal of synthetic diazo dye Congo red (CR) from aqueous solution. Batch adsorption experiments were conducted to investigate the effect of initial CR concentration (10, 30, 50 and 100 mg L-1), pH (4-9) and adsorbent concentration (1 – 10 g L-1) on dye removal at 25 °C. Maximum removal efficiencies of 74% and 42% and experimentally obtained adsorption capacities of 1.7 and 3.04 mg g-1 were achieved for poplar and fir, respectively. The results showed that both, poplar and fir sawdust could be used as adsorbents for Congo red removal from aqueous solutions.

adsorption, Congo red, waste wood biomass, sawdust

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