Cu and Zn biosorption by the subtropical estuarine Bacillus jeotgali strain U3
Biosorption of heavy metals is an effective technology for the treatment of industrial wastewaters and can also be a good tool for the remediation of man-impacted coastal ecosystems. In this context, subtropical estuarine bacteria (Bacillus jeotgali strain U3) were isolated from surface sediments from Estero de Urias, Mazatlan, Mexico. Bacterial biomass was produced by culturing in liquid medium containing peptone and yeast as carbon sources. The biomass obtained was used to remove copper and lead ions from aqueous solutions in hatch experiments. The pH of metal solutions was found to have a pronounced effect on the metal-ac- cumulation capacity of the organisms. Results showed that a biomass concentration of 0. 5 g dry weight L <-1> removed about 80 ％ of copper at pH 6 and 95％ of lead at pH 4, from solutions containing 40 mg· L<1> of each metal. On the other hand, salinity does not have a considerable effect on metal biosorption.
Bacteria metal adsorption bioremediation
C. R Green-Ruiz V. Rodriguez-Tirado B. Gomez-Gil
Unidad Academica Mazatlan, Instituto de Ciencias del Mary Limnologia, Universidad Nacional Autonoma Universidad Politecnica de Sinaloa, Ninos Heroes 1413, Col. Centro, 82000 Manzatlan, Sinaloa, Mexico CIAD/Mazatlan Unidad de Acuacultura, AP 711, 82000 Mazatlan, Sinaloa, Mexico
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
532-533
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）