Bioleaching of Rare Earth Elements and Uranium from Sinai Soil, Egypt Using Actinomycetes
Noha M. Kamal; Maha A. Hewedy; Abeer Ahmed Rushdy; Noha Mohamed Kamal Abdelfattah;
Abstract
The use of microorganisms in the recovery of Rare Earth Elements (REEs) and
Uranium (U) from low grade ores provides an appropriate eco-friendly alternative to
chemical methods used in extraction and/or removal of metals from soils, with a higher
efficiency, less destruction to the environment, and lower cost from a commercial view
especially given that high-grade mineral resources that can be used in the chemical
extraction of metals are being depleted. The feasibility of using actinomycetes to recover
REEsand Ufrom a low-grade ore occurring in an Egyptian soil in Wadi Abu Thor, Sinai,
Egypt, was investigated. The most effective isolate in REEs-bioleaching was Streptomyces
fungicidicus YH04, while the most effective isolate in U-bioleaching was Streptomyces
aureofaciens 3001(1). Streptomyces fungicidicus YH04 bioleached 37.13% of the REEs
present in the sample, while S. aureofaciens 3001(1) bioleached of 12.56% of the U present
in the sample. The isolated strains of actinomycetes can be used to extract REEs and U by
better, more economic and less polluting bioleaching processes instead of the chemical
processes which are in common use today.
Uranium (U) from low grade ores provides an appropriate eco-friendly alternative to
chemical methods used in extraction and/or removal of metals from soils, with a higher
efficiency, less destruction to the environment, and lower cost from a commercial view
especially given that high-grade mineral resources that can be used in the chemical
extraction of metals are being depleted. The feasibility of using actinomycetes to recover
REEsand Ufrom a low-grade ore occurring in an Egyptian soil in Wadi Abu Thor, Sinai,
Egypt, was investigated. The most effective isolate in REEs-bioleaching was Streptomyces
fungicidicus YH04, while the most effective isolate in U-bioleaching was Streptomyces
aureofaciens 3001(1). Streptomyces fungicidicus YH04 bioleached 37.13% of the REEs
present in the sample, while S. aureofaciens 3001(1) bioleached of 12.56% of the U present
in the sample. The isolated strains of actinomycetes can be used to extract REEs and U by
better, more economic and less polluting bioleaching processes instead of the chemical
processes which are in common use today.
Other data
Title | Bioleaching of Rare Earth Elements and Uranium from Sinai Soil, Egypt Using Actinomycetes | Authors | Noha M. Kamal ; Maha A. Hewedy ; Abeer Ahmed Rushdy ; Noha Mohamed Kamal Abdelfattah | Keywords | Actinomycetes;Streptomyces;Rare earth elements;Uranium;Bioleaching | Issue Date | Oct-2013 | Journal | The Egyptian Journal of Hospital Medicine | DOI | http://egyptianjournal.net78.net/53_18.pdf http://egyptianjournal.net78.net/53_18.pdf http://egyptianjournal.net78.net/53_18.pdf http://egyptianjournal.net78.net/53_18.pdf 10.12816/0001653 http://egyptianjournal.net78.net/53_18.pdf http://egyptianjournal.net78.net/53_18.pdf http://egyptianjournal.net78.net/53_18.pdf |
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