Advanced

Biosorption of chromium (III) and chromium (VI) by untreated and pretreated Cassia fistula biomass from aqueous solutions

Abbas, Mazhar; Nadeem, Raziya; Zafar, MNadeem LU and Arshad, Mamoona (2008) In Water, Air and Soil Pollution 191(1-4). p.139-148
Abstract
The present study explained the effect of pretreatments on the biosorption of Cr (III) and Cr (VI) by Cassia fistula biomass from aqueous solutions. For this purpose Cassia fistula biomass was pretreated physically by heating, autoclaving, boiling and chemically with sodium hydroxide, formaldehyde, gluteraldehyde, acetic acid, hydrogen peroxide, commercial laundry detergent, orthophosphoric, sulphuric acid, nitric acid, and hydrochloric acid. The adsorption capacity of biomass for Cr (III) and Cr (VI) was found to be significantly improved by the treatments of gluteraldehyde (95.41 and 96.21 mg/g) and benzene (85.71 and 90.81 mg/g) respectively. The adsorption capacity was found to depend on pH, initial metal concentration, dose, size,... (More)
The present study explained the effect of pretreatments on the biosorption of Cr (III) and Cr (VI) by Cassia fistula biomass from aqueous solutions. For this purpose Cassia fistula biomass was pretreated physically by heating, autoclaving, boiling and chemically with sodium hydroxide, formaldehyde, gluteraldehyde, acetic acid, hydrogen peroxide, commercial laundry detergent, orthophosphoric, sulphuric acid, nitric acid, and hydrochloric acid. The adsorption capacity of biomass for Cr (III) and Cr (VI) was found to be significantly improved by the treatments of gluteraldehyde (95.41 and 96.21 mg/g) and benzene (85.71 and 90.81 mg/g) respectively. The adsorption capacity was found to depend on pH, initial metal concentration, dose, size, kinetics, and temperature. Maximum adsorption of both the Cr (III) and Cr (VI) was observed at pH 5 and 2. When Freundlich and Langmuir isotherms were tested, the latter had a better fit with the experimental data. The kinetic studies showed that the sorption rates could be described better by a second order expression than by a more commonly applied Lagergren equation. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
pretreatments, chromium, Freundlich, Langmuir, Cassia fistula, sorption
in
Water, Air and Soil Pollution
volume
191
issue
1-4
pages
139 - 148
publisher
Springer
external identifiers
  • wos:000256011700011
  • scopus:44149121672
ISSN
1573-2932
DOI
10.1007/s11270-007-9613-8
language
English
LU publication?
no
id
83c8614e-f086-4b34-af1f-5b27a91c8ee3 (old id 1202202)
date added to LUP
2008-09-15 16:02:46
date last changed
2017-09-24 03:41:08
@article{83c8614e-f086-4b34-af1f-5b27a91c8ee3,
  abstract     = {The present study explained the effect of pretreatments on the biosorption of Cr (III) and Cr (VI) by Cassia fistula biomass from aqueous solutions. For this purpose Cassia fistula biomass was pretreated physically by heating, autoclaving, boiling and chemically with sodium hydroxide, formaldehyde, gluteraldehyde, acetic acid, hydrogen peroxide, commercial laundry detergent, orthophosphoric, sulphuric acid, nitric acid, and hydrochloric acid. The adsorption capacity of biomass for Cr (III) and Cr (VI) was found to be significantly improved by the treatments of gluteraldehyde (95.41 and 96.21 mg/g) and benzene (85.71 and 90.81 mg/g) respectively. The adsorption capacity was found to depend on pH, initial metal concentration, dose, size, kinetics, and temperature. Maximum adsorption of both the Cr (III) and Cr (VI) was observed at pH 5 and 2. When Freundlich and Langmuir isotherms were tested, the latter had a better fit with the experimental data. The kinetic studies showed that the sorption rates could be described better by a second order expression than by a more commonly applied Lagergren equation.},
  author       = {Abbas, Mazhar and Nadeem, Raziya and Zafar, MNadeem and Arshad, Mamoona},
  issn         = {1573-2932},
  keyword      = {pretreatments,chromium,Freundlich,Langmuir,Cassia fistula,sorption},
  language     = {eng},
  number       = {1-4},
  pages        = {139--148},
  publisher    = {Springer},
  series       = {Water, Air and Soil Pollution},
  title        = {Biosorption of chromium (III) and chromium (VI) by untreated and pretreated Cassia fistula biomass from aqueous solutions},
  url          = {http://dx.doi.org/10.1007/s11270-007-9613-8},
  volume       = {191},
  year         = {2008},
}