REMOVAL OF FLUORIDE FROM GROUND WATER OF HISAR CITY, USING BRICK POWDER (AN INDUSTRIAL WASTE) AND WHEAT HUSK (AN AGRICULTURAL WASTE) AS ADSORBENTS: A COMPARATIVE STUDYSUNIL KUMAR AND SANJAY K. SHARMA
Ground water accounts for 1.7 % of total available water but it is not utilized properly and unsafe for drinking purposes due to multiple reasons of contaminations. One such contaminant is fluoride. Since fluoride is present in all form of water but the permissible limit for drinking water as per BIS standard is 0.6-1.5 mg/L. Therefore excessive intake of fluoride by human through drinking water raises certain complicated health issue in the form of dental, skeletal and nonskeletal fluorosis. In the present study sincere endeavor is made to use easy to use, cheap and effective adsorbents Wheat Husk an agricultural waste and Brick Powder an industrial waste, readily available in Haryana State (India), which otherwise accounts for environmental pollution if not utilized properly. The investigation was carried out with comparative batch adsorption study of removal of Fluoride from ground water using Brick Powder and Wheat Husk adsorbents by analyzing the effect of parameters contact time, adsorbent dose and initial concentration. The experiment studies shows removal of fluoride percentage increased with increase in adsorbent dose and maximum percentage removal of fluoride ion occurred at 120 minutes contact time and adsorbent dose 1.0 g/100 mL for Brick Powder and in case of Wheat Husk optimum conditions for maximum percentage removal of fluoride ion was 90 minutes contact time and adsorbent dose 1.0 g/100 mL.