Removal of hexavalent chromium from aqueous solution: a comparative study of cone biomass of "Picea smithiana" and activated charcoal

被引：8
作者：
Mittal, Sunil [1 ]
Vaid, Upma [1 ]
Najar, Gh Nabi [1 ]
Babu, J. Nagendra [1 ]
机构：
[1] Cent Univ Punjab, Sch Environm & Earth Sci, Ctr Environm Sci & Technol, Bathinda 151001, Punjab, India
来源：
DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 24期
关键词：
Activated charcoal; Langmuir isotherm; Hexavalent chromium; Adsorption; Cone biomass of Picea smithiana; WASTE-WATER; ADSORPTION-KINETICS; CR(VI) REMOVAL; COCONUT COIR; BIOSORPTION; EQUILIBRIUM; SHELL; CR(III); CARBON; REMEDIATION;
D O I：
10.1080/19443994.2015.1038594
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The present work investigates comparative adsorption efficiency of powdered cone biomass of Picea smithiana (PCBP) and activated charcoal (AC) for removal of hexavalent chromium (Cr) (Cr(VI)) from aqueous solution. The study indicates that PCBP has 76% removal efficiency for Cr as compared to AC. Particle size and SEM-EDX analyses were done to determine average particle size, surface morphology and elemental composition of PCBP. BET and FTIR analysis were carried out to elucidate the adsorption mechanism of Cr(VI) on PCBP. Ashing has been proposed as a method for managing waste of loaded PCBP generated in adsorption. Ashing studies showed the ash content of PCBP to contribute only 13% of the ash generated from loaded biomass. Further, a comparative study has been made indicating the adsorption efficiency of PCBP with previously reported bio-waste materials. The results of this study show that PCBP has high adsorption efficiency as compared to other bio-waste materials.
引用
收藏
页码：11081 / 11095
页数：15
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