Sumera Saeed
Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
Haq Nawaz Bhatti
Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
T. M. Bhatti
Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
ABSTRACT
The bioleaching behavior of rock phosphate (Jordan imported) was studied using different strains of Aspergillus niger (567, 1737 and NRRL 605). X-ray diffraction analysis revealed the presence of fluorapatite [Ca2(PO4)3F] as the main source of phosphorus (P). Average content of phosphorus in test ore was 33.6% Scanning electron microscope showed the presence of significant amount of phosphorus (P). Decrease in pH was observed due to organic acids produced by Aspergillus niger strains during growth on liquid media containing glucose. Maximum of 30% P O and 34% U O was solubilized having rock phosphate pulp density 2%.
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How to cite this article
Sumera Saeed, Haq Nawaz Bhatti and T. M. Bhatti, 2002. Bioleaching
Studies of Rock Phosphate Using Aspergillus niger. Journal of Biological Sciences, 2: 76-78.
DOI: 10.3923/jbs.2002.76.78
URL: https://scialert.net/abstract/?doi=jbs.2002.76.78
DOI: 10.3923/jbs.2002.76.78
URL: https://scialert.net/abstract/?doi=jbs.2002.76.78
REFERENCES
- Bosshard, P.P., R. Bachofen and H. Brandl, 1996. Metal leaching of fly ash from municipal waste incineration by Aspergillus niger. Environ. Sci. Technol., 30: 3066-3070.
CrossRefDirect Link - Dodge, C.J. and A.I. Francis, 1997. Biotransformation of binary and ternary citric acid complexes of iron and uranium. Environ. Sci. Technol., 31: 3062-3067.
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