Abstract

Radhey Shyam and G.S.Kalwania^*

DOI : http://dx.doi.org/10.13005/ojc/290346

Accumulation of fluoride in Sikar aquifer is influenced by fluoride rich rocks,pH, cation and anion exchange capacity of aquifer materials, bicarbonates, evaporation and temperature etc.  Fluoride is a great calcium-seeking ion and it can be precipitated out in favorable conditions.The khimp plant (Leptadenia pyrotechnica) has sufficient positive (calcium) ions and interacts with negatively charged fluoride ions.Different parameters like effect of pH, agitation time, adsorbent dose and fluoride concentration on adsorption studies have investigated. The equilibrium adsorption data was studied for Langmuir and Freundlich isotherms. The main mechanism is through fluoride precipitation and adsorptiononto khimp powder.

dissolution;precipitation;adsorption;khimp powder;fluoride

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