• removal characteristics of copper by marine macro-algae-derived chars

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 486
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the char derived from the fast pyrolysis of macro-algae biomass, a brown alga undaria pinnatifida, proved to be useful for the removal or recovery of copper from aqueous solutions. even at a low dose of 0.1 g char/l, a high adsorption capacity was obtained. physical activation with steam enhanced the adsorption of cu, but chemical activation with a koh solution decreased the adsorption capacity. a pseudo-second order kinetic model was used to explain the adsorption kinetics. the physically-activated char showed a langmuir type of isotherm, and had a maximum adsorption capacity of 125.85 mg cu/g. based on the adsorption capacity, even at a low copper concentration, the char derived from the fast pyrolysis of u. pinnatifida is a valuable adsorbent for recovering copper from aqueous solutions.

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