Biosorption of Cu2+ and Pb2+ using sophora alopecuroides residue

被引：2
|
作者：
Feng, N. [1 ]
Fan, W. [1 ]
Zhu, M. [1 ]
Zhang, Y. [1 ]
机构：
[1] Ningxia Med Univ, Sch Pharm, Ningxia, Peoples R China
来源：
INTERNATIONAL CONFERENCE ON WATER RESOURCE AND ENVIRONMENT 2016 (WRE2016) | 2016年 / 39卷
关键词：
AQUEOUS-SOLUTIONS; HEAVY-METALS; ADSORPTION; REMOVAL; COPPER; LEAD; KINETICS; BIOMASS; IONS;
D O I：
10.1088/1755-1315/39/1/012019
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Sophora alopecuroides residue (SAP), a kind of traditional Chinese herbal medicine residue, was developed in an alternative biosorbent for the removal Cu2+ and Pb2+ in simulated wastewater. The morphology and surface texture of SAP were characterized by scanning electron microscopy, which showed a loose and porous structure. The biosorption experiments of Cu2+ and Pb2+ onto SAP were investigated by using batch techniques. High biosorption percentage appeared at pH values of 4.5-6.0. The experimental data followed the second-order kinetic model well. Equilibrium fit with the Langmuir isotherm model well. The maximum biosorption capacity of an adsorbent at 25. was respectively 60.6 mg/g Cu2+ and 128.1 mg/g Pb2+. The findings of the present study show that SAP is an attractive and effective biosorbent for Cu2+ and Pb2+.
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页数：9
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