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首页> 外文期刊>Journal of Hazardous Materials >Biosorption of copper(II) by nonliving lichen biomass of Cladonia rangiformis hoffm
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Biosorption of copper(II) by nonliving lichen biomass of Cladonia rangiformis hoffm

机译：非活性地衣藻的地衣生物量对铜的吸附

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摘要

Biosorption of heavy metals can be an effective process for the removal of heavy metal ions from aqueous solutions. In this study, the adsorption properties of lichen biomass of Cladonia rangiformis hoffm. for copper(II) were investigated by using batch adsorption techniques. The effects of initial metal ion concentration, initial pH, biosorbent concentration, stirring speed and contact time on biosorption efficiency were studied. In the experiments the optimum pH value was found out 5.0 which was the native pH value of solution. The experimental adsorption data were fitted to the Langmuir adsorption model. The highest metal uptake was calculated from Langmuir isotherm and found to be 7.6923 mg Cu(II)/g inactivated lichen at 15℃. The results indicated that the biomass of C. rangiformis is a suitable biosorbent for removing Cu(II) from aqueous solutions.
机译：重金属的生物吸附可能是从水溶液中去除重金属离子的有效方法。本研究研究了桔梗乌头地衣生物量的吸附特性。采用分批吸附技术研究了铜（II）的含量。研究了初始金属离子浓度，初始pH，生物吸附剂浓度，搅拌速度和接触时间对生物吸附效率的影响。在实验中，发现最佳pH值为5.0，这是溶液的天然pH值。实验吸附数据拟合到Langmuir吸附模型。根据Langmuir等温线计算得出最高的金属吸收量，在15℃下为7.6923 mg Cu（II）/ g灭活的地衣。结果表明，革兰氏梭菌的生物量是从水溶液中去除Cu（II）的合适生物吸附剂。

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