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Adsorptive removal of fluoride from water samples using Azospirillum biofertilizer and lignite
Kavita Kulkarni,Gajanan M. Bhogale,Rujuta Nalawade 한국화학공학회 2018 Korean Journal of Chemical Engineering Vol.35 No.1
The present study involves a comparison of Azospirillum biofertilizer and lignite for removal of fluoride from aqueous solution. Batch experiments were performed to remove fluoride by the use of Azospirillum biofertilizer and lignite. Fluoride adsorption capacity was found by varying different parameters such as adsorbent dose, pH, initial concentration, temperature and contact time. The adsorption capacity for fluoride by using Azospirillum biofertilizer was 0.456mg/g and for lignite 0.16mg/g. Pseudo-second-order kinetic model best fit the experimental data. Field water samples were tested for fluoride removal by Azospirillum biofertilizer and lignite. The fluoride concentration was reduced to the permissible limit.