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Defluoridation of water using neem (Azadirachta indica) leaf powder
Original Research Article
RS Dave * and MT Machhar
Department of Chemistry, Arts, Commerce, & Science College, Pilvai (North Gujarat) India. *Corresponding author: R. S. Dave, E-mail email@example.com., Contact : +91 9427681830
Received: September 10, 2015 Accepted: November 25, 2015 Published: November 30, 2015
In this study, dry powder of bioadsorbent was prepared from neem tree leaves by crushing the dry leaves and the prepared powder of bioadsorbent was used to remove fluoride from aqueous solutions. The produced bioadsorbent was characterized by measuring their porosities and pore size distributions. The microstructure of the bioadsorbent was examined by scanning electron microscopy (SEM). The resulting activated bioadsorbent was used for removal of fluoride from aqueous solution. The effects of pH, temperature and contact time were investigated. Isotherm studies were carried out and the data were analyzed by Langmuir and Freundlich equations. Two simplified kinetic models were tested to investigate the adsorption mechanism.
Keywords: bioadsorbent, adsorption, fluoride, chemical activation.