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首页> 外文期刊>Applied Microbiology and Biotechnology >Lead, copper and zinc biosorption from bicomponent systems modelled by empirical Freundlich isotherm
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Lead, copper and zinc biosorption from bicomponent systems modelled by empirical Freundlich isotherm

机译：经验弗氏等温线模拟的双组分系统对铅，铜和锌的生物吸附

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摘要

The biosorption of lead, copper and zinc ions on Rhizopus arrhizus has been studied for three single-component and two binary systems. The equilibrium data have been analysed using the Freundlich adsorption model. The characteristic parameters for the Freundlich adsorption model have been determined and the competition coefficients for the competitive biosorption of Pb(II)-Cu(II) at pH 4.0 and 5.0, and Pb(II)Zn(II) at pH 5.0 have been calculated. For the individual single-component isotherms, lead has the highest biosorption capacity followed by copper, then zinc. The capacity of lead in the two binary systems is always significantly greater than those of the other metal ions, in agreement with the single-component data. Only a partial selectivity for copper ions has been obtained at pH 4.0. [References: 9]
机译：对于三种单组分和两种二元体系，已研究了铅，铜和锌离子在阿魏根霉上的生物吸附。平衡数据已使用Freundlich吸附模型进行了分析。确定了Freundlich吸附模型的特征参数，并计算了pH 4.0和5.0时Pb（II）-Cu（II）和pH 5.0时Pb（II）Zn（II）竞争性生物吸附的竞争系数。 。对于单个的单组分等温线，铅具有最高的生物吸附能力，其次是铜，然后是锌。与单组分数据一致，两个二元系统中的铅容量始终显着大于其他金属离子的容量。在pH 4.0下仅获得了部分铜离子选择性。 [参考：9]

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