首页> 外文期刊>Chemical Science International Journal >Sorption of Pb2+, Cu2+ and Zn2+ from Aqueous Solution Using a Blended Membrane of Immobilized Karkashi (Sesame Leaves) and Sodium Alginate
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Sorption of Pb2+, Cu2+ and Zn2+ from Aqueous Solution Using a Blended Membrane of Immobilized Karkashi (Sesame Leaves) and Sodium Alginate

机译:使用固定的karkashi(芝麻叶)和藻酸钠的混纺膜来吸附Pb2 +,Cu2 +和Zn2 +。

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Sorption techniques are widely used to remove heavy metal ions from large volume of aqueous solutions, this plays a vital role in controlling environmental pollution. Herein, the sorption of Pb~(2+), Cu~(2+) and Zn~(2+) with blended membrane of sodium alginate (Na-Alg) and immobilized karkashi leaves (IKAL) from aqueous solution was investigated at optimum conditions for effectiveness. Sorption capacities of the membrane for Pb~(2+), Cu~(2+) and Zn~(2+) were found to be 86.80, 40.60 and 39.55% respectively. The sorption behavior with respect to initial pH, ionic strength, temperature, contact time and initial metal ion concentration was investigated for optimum sorption conditions. Maximum sorption was found to occur at pH 3.0 for all the metal ions studied. Results showed that metallic ion uptake by the blended membrane declined with increase in ionic strength. This trend was also observed at an increased temperature of 50oC for Pb~(2+), Cu~(2+) and 40oC for Zn~(2+). Increase in initial metal ion concentration led to increase in metal ion uptake.
机译:吸附技术广泛用于除去大量水溶液中的重金属离子,这在控制环境污染方面发挥着至关重要的作用。在此,在最佳下,研究了与藻酸钠(Na-Alg)和固定的karkashi叶(Ikal)的混合膜的Pb〜(2+),Cu〜(2+)和Zn〜(2+)的吸附在最佳状态下有效性的条件。发现Pb〜(2+),Cu〜(2+)和Zn〜(2+)膜的吸附能力分别为86.80,40.60和39.55%。研究了相对于初始pH,离子强度,温度,接触时间和初始金属离子浓度的吸附行为以获得最佳吸附条件。发现所有金属离子的pH 3.0发生最大吸附。结果表明,金属离子吸收通过混纺膜的增加随离子强度的增加而下降。对于PB〜(2+),Cu〜(2+)和40℃的50℃的温度增加,也观察到这种趋势,用于Zn〜(2+)。初始金属离子浓度的增加导致金属离子吸收的增加。

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