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KMID : 1094720160210050689
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Biotechnology and Bioprocess Engineering
2016 Volume.21 No. 5 p.689 ~ p.693
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Development of recycled aggregate bio-carrier with sulfate reducing bacteria for the elimination of heavy metals from seawater
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Kim In-Hwa
Lee Won-Jin
Kim Young-Kee
Oh Byung-Keun
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Abstract
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In this study, we fabricated a novel recycled aggregate (RA) bio-carrier with sulfate-reducing bacteria (SRB) for the effective removal of the heavy metals Zn2+, Ni2+, and Cr6+ from contaminated seawater. By using only RA carriers, Zn2+, Ni2+, and Cr6+ could be removed up to 35.6, 11.0, and 61.3% and SRB-immobilized RA biocarriers could effectively lead to the removal of Zn2+, Ni2+, and Cr6+ up to 100.0, 98.0, and 87.8% for 100 ppm concentration of the heavy metals at 37°C, respectively. These results indicate that recycled aggregate bio-carriers with SRB hold great potential for use in the removal of cationic heavy metal species from marine environment.
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KEYWORD
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recycled aggregate bio-carrier, sulfate reducing bacteria, bioremediation, heavy metal, Desulfovibrio desulfuricans
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