Study of hybrid immobilized biomass of Pleurotus sajor-caju and Jasmine sambac for sorption of heavy metals

被引：10
作者：
Ashraf, A. [1 ]
Nadeem, R. [1 ]
Sharif, S. [1 ]
Ansari, T. M. [2 ]
Munir, H. [1 ]
Mahmood, A. [3 ]
机构：
[1] Univ Agr Faisalabad, Dept Chem & Biochem, Faisalabad 38040, Pakistan
[2] Bahauddin Zakariya Univ, Inst Chem Sci, Multan 60800, Pakistan
[3] Quaid I Azam Univ, Dept Plant Sci, Environm Biol & Ecotoxicol Lab, Islamabad 45320, Pakistan
来源：
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY | 2015年 / 12卷 / 02期
关键词：
Batch mode; Biosorption; Copper; pH; Zinc; AQUEOUS-SOLUTIONS; ASPERGILLUS-NIGER; BIOSORPTION; EQUILIBRIUM; REMOVAL; COPPER; IONS; ZINC; ADSORPTION; CR(VI);
D O I：
10.1007/s13762-013-0471-1
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The current study deals with evaluation of biosorption feasibility for removal of Cu(II) and Zn(II) by hybrid immobilized biosorbent of Pleurotus sajor-caju and Jasmine sambac. Batch adsorption experiments were carried out to assess the effect of pH, initial metal concentration, biomass dose, temperature and time. The biosorption efficiency of Cu(II) and Zn(II) ions for hybrid immobilized biosorbent increases with rising pH values. The hybrid immobilized biosorbent illustrated the highest biosorption capability at pH 5 for Cu(II), 6 for Zn(II), at 0.05 g/100 mL dose and 100 mg/L initial metal concentration of both ions. Uptake kinetics followed the pseudosecond-order model and equilibrium was described by Langmuir and Freundlich isotherms. Adsorption ratios of Cu(II) and Zn(II) were best fitted to Langmuir isotherm. The best temperature for ion uptake was found to be 30 degrees C.
引用
收藏
页码：717 / 724
页数：8
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