New inorganic (an)ion exchangers with a higher affinity for arsenate and a competitive removal capacity towards fluoride, bromate, bromide, selenate, selenite, arsenite and borate

Natalia Chubar

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Highly selective materials and effective technologies are needed to meet the increasingly stronger drinking water standards for targeted ionic species. Inorganic ion exchangers based on individual and mixed-metal hydrous oxides (or mixed adsorbents that contain inorganic ion exchangers in their composition) are adsorptive materials that are capable of lowering the concentrations of anionic contaminants, such as H2AsO4 , H3AsO3, F, Br, BrO3, HSeO4,HSeO3 and H3BO3, to 10 µg/L or less. To achieve a higher selectivity towards arsenate, a new ion exchanger based on Mg–Al hydrous oxides was developed by a novel, cost-effective and environmentally friendly synthesis method via a non-traditional (alkoxide-free) sol-gel approach.
    Original languageEnglish
    Pages (from-to)505-515
    Number of pages11
    JournalWater Science & Technology: Water Supply
    Volume11
    Issue number5
    DOIs
    Publication statusPublished - 2011

    Keywords

    • water treatment
    • adsorption science and technology
    • arsenate
    • arsenite
    • fluoride
    • inorganic ion exchange

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