Abstract
Fluoride adsorption over agglomerated (140–290μm) Ce(IV)–Zr(IV) mixed oxide nanoparticles (∼50nm) packed fixed-beds has been reported from ground waters. Parameters varied are input concentration (C0), bed volume (BV) and effluent rate. Throughput volume increased at breakthrough point (1.0mgF−L−1) with increasing BV, decreasing C0 and effluent rate. Thomas kinetic model described the breakthrough data too well. Length of mass transfer zone (0.6039cm) and bed capacity (542.43mgcm−3) obtained from bed depth service time model gave promising signal for agglomerated Ce(IV)–Zr(IV) mixed oxide packed fixed-beds for filtration of high fluoride (C0=3.0mgL−1) ground water.
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