Studies on fluoride removal using adsorption process.
Batch adsorption studies were undertaken to assess the suitability of commercially available activated charcoal to remediate fluoride-contaminated water. The effects of some of the major parameters of adsorption, viz. pH, dose of adsorbent, rate of stirring, contact time and initial adsorbate concentration on fluoride removal efficiency were studied and optimized. The optimum sorbent dose was found to be 2.0 g/100 mL, equilibrium was achieved in 120 minutes and enhanced adsorption was obtained at pH 2. Maximum fluoride removal was observed to be 94% at optimum conditions. Freudlich as well as Langmuir isotherms were plotted and kinetic constants were determined.
Tembhurkar
A R
AR
Visvesvaraya National Institute of Technology, Nagpur-440 011, Maharashtra, India. artembhurkar@rediffmail.com
Dongre
Shilpa
S
D000327:Adsorption; D002606:Charcoal / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D012969:Sodium Fluoride / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods
D014874:Water Pollutants, Chemical; D002606:Charcoal; D012969:Sodium Fluoride