title: Removal of fluoride from water with powdered corn cobs.
abstract: The adsorption of fluoride on corn cobs powder was investigated in the present study. Neat powdered corn cobs did not show remarkable adsorption but aluminium treated corn cobs had good adsorption capacity. The parameters studied include the contact time, concentration, temperature and pH. Near neutral pH was identified as the optimum condition of the medium, and 90 to 120 minutes was the best contact time for maximum fluoride adsorption. The adsorption process was found to follow Freundlich isotherm. The adsorption process was found to be exothermic as adsorption decreased with increasing temperature.
authors.affiliation: Applied Chemistry Dept., Faculty of Tech. & Engg., The Maharaja Sayajirao University of Baroda, Vadodara-390 001, India.
authors.forename: S
authors.initials: S
authors.lastname: Parmar
authors.forename: Jignesh B
authors.initials: JB
authors.lastname: Patel
authors.forename: Padmaja
authors.initials: P
authors.lastname: Sudhakar
authors.forename: V J
authors.initials: VJ
authors.lastname: Koshy
mesh_terms: D000327:Adsorption; D000077410:Aluminum Chloride; D017607:Aluminum Compounds / Q000737:chemistry; D002122:Calcium Chloride / Q000737:chemistry*; D002712:Chlorides / Q000737:chemistry; D003247:Conservation of Natural Resources; D003365:Costs and Cost Analysis; D005459:Fluorides / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000191:economics / Q000379:methods; D003313:Zea mays
chemical_list: D017607:Aluminum Compounds; D002712:Chlorides; D014874:Water Pollutants, Chemical; D000077410:Aluminum Chloride; D002122:Calcium Chloride; D005459:Fluorides