Speaker
Description
Water pollution is a major environmental concern due to its negative effects on aquatic ecosystems and human health. Textile dyes are particularly problematic among water contaminants because of their widespread industrial use, complex structures, and resistance to degradation, because their release into aquatic environments can reduce light penetration, disrupt aquatic organisms, and introduce potentially toxic or mutagenic substances. 1 Conventional wastewater treatment methods may be ineffective for the removal of persistent dyes, while advanced technologies often require high costs and complex operational conditions. Sorption has therefore attracted considerable interest as an efficient, cost-effective, and environmentally friendly treatment approach, particularly waste-derived materials such as wood waste represent promising sorbents.2
In this context, the present study aimed to develop a bismuth-modified wood waste sorbent and evaluate its efficiency in removing Reactive Blue 19 from aqueous solutions. The sorption performance was assessed through optimization of the sorption process by systematically investigating the influence of key operational parameters, including contact time, solution pH, pollutant concentration, initial dye concentration, and temperature, in order to determine the conditions that favor efficient dye removal. Maximal dye removal was achieved for 40 min, at pH 2, with 2 g/L sorbent dose, at 25 °C, with 300 mg/L complete dye removal indicating the high sorption efficiency and strong potential of the sorbent.