首页> 外文会议>T. T. Chen honorary symposium on hydrometallurgy, electrometallurgy and materials characterization >BIOSORPTION CHARACTERISTICS OF Pb(II) FROM AQUEOUS SOLUTION ONTO POPLAR COTTON
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BIOSORPTION CHARACTERISTICS OF Pb(II) FROM AQUEOUS SOLUTION ONTO POPLAR COTTON

机译:从白杨水溶液到水中Pb(II)的生物富集特性

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摘要

Poplar cotton, a cellulosic material, was found to adsorb metals ions effectively. In the present study, the biosorption characteristics of Pb(II) onto poplar cotton, were evaluated as a function of pH, contact time, biomass dosage, initial concentration and temperature. Within the pH range investigated (1.0-6.0), the optimal pH value suitable for the uptake of Pb(II) was determined. The maximum adsorption capacity obtained from the Langmuir model is around 0.52mol kg for the poplar cotton sorbent. Equilibration is achieved in 60min for the studied concentrations. Results suggest that the poplar cotton can be directly used as an effective and low-cost biosorbent for removal of Pb(II) from aqueous solution.
机译:人们发现,白杨棉是一种纤维素材料,可以有效地吸收金属离子。在本研究中,对Pb(II)在杨棉上的生物吸附特性进行了评估,它是pH,接触时间,生物量,初始浓度和温度的函数。在研究的pH范围(1.0-6.0)中,确定了适合于Pb(II)吸收的最佳pH值。从Langmuir模型获得的杨木棉吸附剂的最大吸附容量约为0.52mol kg。研究浓度在60分钟内达到平衡。结果表明,杨树棉可以直接用作从水溶液中去除Pb(II)的有效且低成本的生物吸附剂。

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