Bioremediation Potential of Zn (II) By Different Bacterial Species
Journal Title: Saudi Journal of Biomedical Research - Year 2018, Vol 3, Issue 4
Abstract
Abstract:Heavy metals are generally toxic to microorganisms, especially if they exist at high concentrations. Environmental pollution particularly in soil with heavy metals can stem from industrial activities or sewage discharges. In this study, Five different bacterial species Bacillus megateriumEMCC 1013, Rhizobium rhizogenesEMCC1743, Rhizobium leguminosarumEMCC1130,AzotobactervinelandiiandNocardiopsisDassenvilleiwere evaluated their potential activity in bioremediation of Zn (II). Our results showed that five bacterial species have great variation potential for zinc bioremediation.Bacillus megateriumEMCC has the highest capacity for bioremediation of Zn (II) 650 ppm with 99 % removal after 24 h with inoculum size 0.1 x 10 29cfu and incubation temperature 300C at PH 7 and energy source glucose and ammonium oxalate as carbon and nitrogen source. The aim of our study was to evaluation the bioremediation capacity of zinc as heavy metals by five different bacterial species to use them in further study in removal of Zn (II)from plating waste water. In addition Bacillus megateriumEMCC as the most potent Zn (II)resistant microorganisms will very useful in biotechnology for the remediation of metal contaminated environments with Zn (II)and can also be used in the construction of biomarkers for the detection of zinc ions. Keywords:Bioremediation, Bacillus megaterium, heavy metal, Zinc.
Authors and Affiliations
T. A. A El-barbary, M. A El-Badry
Keywords
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