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  • fluoride removal on fe–al-impregnated granular ceramic adsorbent from aqueous solution

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1028
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a novel fe–al-impregnated granular ceramic adsorbent has been developed for fluoride removal from aqueous solution. batch experiments were performed to investigate the effect of contact time, initial ph, adsorbent dose, and the presence of competing anions on the adsorption of fluoride. more than 96 % removal of fluoride was achieved within 48 h from 10 mg/l initial fluoride solution at neutral ph. the adsorption process was well explained with pseudo-second-order and pore diffusion models. the maximum adsorption capacity of adsorbent for fluoride removal was 3.56 mg/g according to the langmuir isotherm model. the optimum fluoride removal efficiency was observed between ph ranged of 4.0–9.0. the fluoride removal efficiency was significantly decreased in the presence of carbonate and phosphate anions. results from this study demonstrated potential utility of fe–al-impregnated granular ceramic adsorbent that could be developed into a viable method for fluoride removal from aqueous solution.

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