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首页> 外文期刊>Review of Agricultural Entomology >Removal of Cd(Ⅱ) ions by oxidized coconut coir
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Removal of Cd(Ⅱ) ions by oxidized coconut coir

机译：氧化椰子皮去除Cd（Ⅱ）离子

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摘要

Biosorption potential of oxidized coconut coir (OCC) for removal of Cd(II) from aqueous medium at batch and column level was studied. Lignin and cellulose groups of coir were modified to acidic groups. Optimum biosorption was observed at pH 6. Isotherm data revealed that Langmuir gives best fit for experimental results with maximum adsorption capacity of 12.35mg/g compared to unmodified coconut coir (5.29mg/g). The column experiments were conducted as a function of flow rate, bed height, and influent Cd(II) concentration. Biosorption has best performance at 10mg/L inlet concentration, 5ml/min flow rate and 7 cm bed height.
机译：研究了氧化椰子椰壳（OCC）在分批和柱一级从水性介质中去除Cd（II）的生物吸附潜力。椰壳纤维的木质素和纤维素基团被修饰成酸性基团。在pH为6时观察到最佳生物吸附。等温线数据表明，朗格米尔最适合实验结果，与未改性椰子椰壳（5.29mg / g）相比，最大吸附量为12.35mg / g。进行柱实验是流速，床高和进水Cd（II）浓度的函数。在10mg / L的入口浓度，5ml / min的流速和7 cm的床高下，生物吸附性能最佳。

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