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Document Details
Document Type
:
Article In Journal
Document Title
:
Biosorption of mercury by capsulated and slime layer-forming Gram -ve bacilli from an aqueous solution
Biosorption of mercury by capsulated and slime layer-forming Gram -ve bacilli from an aqueous solution
Subject
:
Biological
Document Language
:
English
Abstract
:
The biosorption of mercury by two locally isolated Gram-ve bacilli: Klebsiella pneumoniae ssp. pneumonia (capsulated) and slime layer forming Pseudomonas aeruginosa, was characterized. Mercury adsorption was found to be influenced by the pH value of the biosorption solution, initial metal concentration, amount of the dried biomass and contact time. The optimum biosorption capacity of K. pneumoniae (about 15%) was recorded at pH 5, initial mercury concentration of 0.1 g/L and when contacted for less than 60 min with 1.0 g dried cells/L. While, the highest biosorption capacity of P. aeruginosa (about 25%) was reached at pH 5.8, initial mercury level of 0.15 g/L and for less than 60 min contacted with 1.0 g dried biomass/L. The efficiency average of slime layer forming P. aeruginosa, of high negatively charged components, showed more than 1.5 fold increase as compared to capsulated K. pneumoniae of low negatively charged constituents, under all the tested characteristics of mercury biosorption from aqueous solution.
ISSN
:
16845315
Journal Name
:
African Journal of Biotechnology
Volume
:
9
Issue Number
:
38
Publishing Year
:
1431 AH
2010 AD
Article Type
:
Article
Added Date
:
Tuesday, April 5, 2011
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
صالح محمد القرني
Al-Garni, SALEH Mohamed
Researcher
Doctorate
Saleh-895_4@hotmail.com
خالد محمد غانم
Ghanem, Khaled Mohamed
Researcher
Doctorate
kghanem@kau.edu.sa
أحمد سالم إبراهيم
Ibrahim, Ahmed Salem
Researcher
Doctorate
Files
File Name
Type
Description
29571.pdf
pdf
Abstract
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