Insight into the defluoridation efficiency of nano magnesium oxide in groundwater system contaminated with hexavalent chromium and fluoride

Abstract In order to broaden the applications of nano magnesium oxide (NMgO), as a sorbent, in potable water defluoridation, it is pertinent to understand the variables that define the defluoridation efficiency. The defluoridation efficiency of NMgO was evaluated in a groundwater (GW) system that is contaminated with chromium (Cr(VI)), one of the naturally occurring oxyanions in GW. NMgO was synthesized, characterized and the parameters of the sorption of Cr(VI) and fluoride (F−) were obtained in synthetic feed water and GW that contained single sorbate specie. Competitive sorption studies was carried out, using each of the ionic species, either as the sorbate of interest or the interfering ionic specie, in the two aqueous matrixes. The efficiencies (     «

Abstract In order to broaden the applications of nano magnesium oxide (NMgO), as a sorbent, in potable water defluoridation, it is pertinent to understand the variables that define the defluoridation efficiency. The defluoridation efficiency of NMgO was evaluated in a groundwater (GW) system that is contaminated with chromium (Cr(VI)), one of the naturally occurring oxyanions in GW. NMgO was synthesized, characterized and the parameters of the sorption of Cr(VI) and fluoride (F−) were obtained i...     »