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http://dx.doi.org/10.7841/ksbbj.2013.28.3.165

Isolation and Characterization of Ureolytic Bacteria for Biosequestration of Strontium  

Choi, Jae-Ho (Department of Biological Engineering, Inha University)
Kang, Chang-Ho (Department of Biological Engineering, Inha University)
Han, Sang-Hyun (Department of Biological Engineering, Inha University)
Kwak, Dae Young (Department of Biological Engineering, Inha University)
Oh, SooJi (Department of Biological Engineering, Inha University)
So, Jae-Seong (Department of Biological Engineering, Inha University)
Publication Information
KSBB Journal / v.28, no.3, 2013 , pp. 165-169 More about this Journal
Abstract
In this study, 52 ureolytic bacterial strains were newly isolated from various environments. From these, 2 strains (TB-15 and TB-22) were selected based on their high urease activity. XRD spectra clearly showed presence of various sequestration products such as calcite and strontianite in samples. TB-22 showed 20~30% higher survivability upon Sr concentration (20 mM) than Sporosarcina pasteurii KCTC 3558. TB-15 and TB-22 showed 80~90% higher survivability at pH 6 than S. pasteurii. The results demonstrated that the 2 isolates colud be good candidates for the bioremediation of Sr contaminated sites.
Keywords
MICP; Strontium; Sequestration; Calcite; Coprecipitation;
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