CELLULOSE-BASED BIOCOMPOSITE SORBENTS FOR THE TREATMENT OF HEAVY-METAL-CONTAMINATED WASTEWATER
Abstract
In this study, a cellulose-based biocomposite sorbent was developed using carboxymethylcellulose (CMC) and polyethylenepolyamine (PEP) to remove heavy metal ions from industrial wastewater. The material combines adsorption, ion exchange, and flocculation mechanisms in a single biodegradable system. The composite exhibited very high removal efficiencies for Pb(II), Cd(II), Cu(II), and Ni(II), reaching up to 98% at low dosage levels (~50 mg/L). In addition, the amount of sludge produced during treatment was reduced by approximately 35%, which significantly lowers disposal and operational costs. The results indicate that cellulose-based biocomposites are a promising sustainable alternative to conventional chemical flocculants and inorganic coagulants.
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References
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