Lead removal by phosphate solubilizing bacteria isolated from soil through biomineralization

Microorganisms with the function of biological mineralization were isolated from a soil. The bacteria were identified by 16S rRNA as Bacillus sp and possessed a significant lead removal ability. Lead removal experiment indicated that the mathematical model of η=ηmax−ηcet/k fit the variation of removal rate with time well. Different from the previous studies, this work discovered that the culture medium had the ability to remove aqueous lead (Pb2+). At the same dosage, the removal rates of Pb2+ followed the order of: cells