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has been cited by the following article:

• TITLE: Removal of Fluoride from Groundwater by Carbonised Punica granatum Carbon (“CPGC”) Bio-Adsorbent

  AUTHORS: Sudhanshu Kanaujia, Bharat Singh, Sanjay Kumar Singh

  KEYWORDS: Fluoride Removal, Adsorption, Punica granatum, Bio-Adsorbent

  JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.3 No.4, June 5, 2015

  ABSTRACT: This study applies the development and application of low cost, Punica granatum bio-adsorbent for the removal of fluoride in groundwater. The batch adsorption study was carried out to analyze the defluoridation by contact time variation, adsorbent dose, adsorbate concentration, adsorbent particle size and presence of co-anions at neutral pH. The analysis of the isotherm equilibrium data using the Langmuir and Freundlich equations by linear methods showed that the data fitted better with Freundlich model (R2 > 0.980). Prepared adsorbent showed enhanced removal of fluoride concentration by 78.1% at equilibrium contact time of 75 minutes. Carbonised Punica granatum Carbon (CPGC) seeds showed a high affinity for fluoride ions compared with other conventional adsorbents. Therefore, it can be considered as a potentially “good”, low-cost bio-adsorbent for de-fluoridation of water compared to other bio-adsorbent.