ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Bioleaching studies have been conducted to obtain bacteria having a high ability todissolve copper from chalcopyrite. For these studies, samples of mine drainage water which containhigh concentrations of copper or iron ions in several abandoned mines in Japan were used toinoculate enrichment cultures on 0.16 M ferrous iron in the absence of chalcopyrite concentrate.Afterwards, these were accumulated and supplied to shaking-flask bioleaching tests on chalcopyriteconcentrate. Copper dissolution rates were measured in chalcopyrite leaching experiments andcompared with those using cell-free ferrous/ferric media. The copper dissolution rate in ferroussulphate medium was higher than that in ferric sulphate medium. Moreover, tests in the presence ofbacteria showed even an higher copper dissolution rate
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.20-21.557.pdf
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