TY - JOUR
T1 - Cadmium recovery by a sulfate-reducing magnetotactic bacterium, Desulfovibrio magneticus RS-1, using magnetic separation
AU - Arakaki, Atsushi
AU - Takeyama, Haruko
AU - Tanaka, Tsuyoshi
AU - Matsunaga, Tadashi
PY - 2002/5/11
Y1 - 2002/5/11
N2 - Cadmium recovery by a sulfate-reducing magnetotactic bacterium, Desulfovibrio magneticus strain RS-1, was investigated. D. magneticus precipitated >95% of cadmium at an initial concentration of 1.3 ppm in the growth medium. Electron microscopic analysis revealed that D. magneticus formed electron-dense particles on its surface when cultivated in the presence of cadmium ions (Cd2+). Sulfide was also found in the precipitate, and the composition ratio of sulfide/cadmium was 0.7. Sixty percent of viable RS-1 cells was recovered by a simple magnetic separation revealing the removal of 58% cadmium from the culture medium.
AB - Cadmium recovery by a sulfate-reducing magnetotactic bacterium, Desulfovibrio magneticus strain RS-1, was investigated. D. magneticus precipitated >95% of cadmium at an initial concentration of 1.3 ppm in the growth medium. Electron microscopic analysis revealed that D. magneticus formed electron-dense particles on its surface when cultivated in the presence of cadmium ions (Cd2+). Sulfide was also found in the precipitate, and the composition ratio of sulfide/cadmium was 0.7. Sixty percent of viable RS-1 cells was recovered by a simple magnetic separation revealing the removal of 58% cadmium from the culture medium.
KW - Bioremediation
KW - Cadmium, magnetic separation
KW - Desulfovibrio magneticus
KW - Sulfate-reducing magnetotactic bacterium
UR - http://www.scopus.com/inward/record.url?scp=0036233740&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036233740&partnerID=8YFLogxK
U2 - 10.1385/ABAB:98-100:1-9:833
DO - 10.1385/ABAB:98-100:1-9:833
M3 - Article
C2 - 12018305
AN - SCOPUS:0036233740
VL - 98-100
SP - 833
EP - 840
JO - Applied Biochemistry and Biotechnology
JF - Applied Biochemistry and Biotechnology
SN - 0273-2289
ER -