Abstract
The mobilization of nickel from sulphide minerals using sulfuric acid and Bacillus subtilis was examined. The influences of the concentration of acid and bacteria as well as reaction time were considered. Recovery of nickel by interrupted bioreaction was relatively low and exhibited two phases: an active phase (up to 6h exposure) and a latent phase (over 6h exposures) reflecting bacterial inhibition by nickel overtime. Nickel was quickly recovered from tailings (20ppm/h) than from ore (8.07ppm/h) with biological and acidic methods. It therefore appears that optimum nickel mobilization with B. subtilis will occur in the active phase. Biological method has environmental advantage and thus appropriate for tailing dumps management.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
