Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
environmental science
Removal of chromium (VI) from aqueous solution using treated oil palm fibre
Journal of Hazardous Materials, Volume 152, No. 2, Year 2008
Notification
URL copied to clipboard!
Description
This study proposed an oil palm by-product as a low-cost adsorbent for the removal of hexavalent chromium [Cr (VI)] from aqueous solution. Adsorption of Cr (VI) by sulphuric acid and heat-treated oil palm fibre was conducted using batch tests. The influence of pH, contact time, initial chromium concentration and adsorbent dosage on the removal of Cr (VI) from the solutions was investigated. The optimum initial pH for maximum uptake of Cr (VI) from aqueous solution was found to be 1.5. The removal efficiency was found to correlate with the initial Cr (VI) concentration, adsorbent dosage as well as the contact time between Cr (VI) and the adsorbent. The adsorption kinetics tested with pseudo first order and pseudo second order models yielded high R2 values from 0.9254 to 0.9870 and from 0.9936 to 0.9998, respectively. The analysis of variance (ANOVA) showed significant difference between the R2 values of the two models at 99% confidence level. The Freundlich isotherm (R2 = 0.8778) described Cr (VI) adsorption slightly better than the Langmuir isotherm (R2 = 0.8715). Difficulty in desorption of Cr (VI) suggests the suitability of treated oil palm fibre as a single-use adsorbent for Cr (VI) removal from aqueous solution. © 2007 Elsevier B.V. All rights reserved.
Authors & Co-Authors
Isa, Mohamed Hasnain
Malaysia, Seri Iskandar
Universiti Teknologi Petronas
Abdul Aziz, Hamidi Abdul
Malaysia, Minden
Universiti Sains Malaysia
Zinatizadeh, Ali Akbar
Iran, Karaj
Materials and Energy Research Centre Iran
Kutty, Shamsul Rahman Mohamed
Malaysia, Seri Iskandar
Universiti Teknologi Petronas
Statistics
Citations: 79
Authors: 4
Affiliations: 4
Identifiers
Doi:
10.1016/j.jhazmat.2007.07.033
ISSN:
03043894