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Research Article
 

Bioleaching Studies of Rock Phosphate Using Aspergillus niger



Sumera Saeed , Haq Nawaz Bhatti and T. M. Bhatti
 
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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

REFERENCES
1:  Anonymous, 1990. Official Methods of Analysis. Association of Official Analytical Chemists, Arlington, VA., pp: 212-220.

2:  Ahmed, Z. and R.A. Siddiqui, 1992. Minerals and rocks for industry. Geol. Survey Pak., 3: 622-623.

3:  Bhatti, T.M., A. Mateen, M. Amin, K.A. Malik and A.M. Khalid, 1991. Spectrophotometric determination of uranium (U) in bacterial leach liquors using Arsenazo 3. J. Chem. Technol. Biotechnol., 52: 331-341.

4:  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.
CrossRef  |  Direct Link  |  

5:  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.
Direct Link  |  

6:  Habashi, F., 1980. The recovery of uranium from phosphate rock: Progress and problems. Proceedings of the 2nd International Congress on Phosphorus Compounds, (ICPC'80), Institute Mondial du Phosphate, Paris, pp: 629-660.

7:  Hayman, D.S., 1975. Phosphorous Cycling by Soil Microorganisms and Plant Roots. In: Soil Microbiology, Walker, N.W. (Ed.). Butterworth Publication, London, pp: 67-91.

8:  Jackson, M.L., 1962. Soil Analysis. Constable and Co. Ltd., UK.

9:  Torma, A.E., 1988. Leaching of Metals. In: Biotechnology, Rehm, H.J. and G. Reed (Eds.). Vol. 6, Verlag Chemic, Weinheim, pp: 367-369.

10:  Bhatti, T.M., T. Yasmin, M. Amin and A. Mateen, 1999. Leaching of uranium from rock phosphate by Thiobacillius ferrooxidans and Thiobacillus thiooxidans. Proceedings of the International Symposium of Biohydrometallurgy, June 22-25, Madrid, Spain.

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