Combined degradation of covellite byThiobacillus thiooxidansandThiobacillus ferrooxidans

✍ Scribed by G. Curutchet; P. Tedesco; E. Donati

• Publisher: Springer Netherlands
• Year: 1996
• Tongue: English
• Weight: 379 KB
• Volume: 18
• Category: Article
• ISSN: 0141-5492
• DOI: 10.1007/bf00129357

✦ Synopsis

In the presence of iron, which is always associated with natural sulphide ores, the percentages of copper dissolution in the bioleaching of covellite were 34 and 45 % when i%obacillus thiooxidans and Thiobacillus ferrooxidans were used together and when an indirect bioleaching with attached bacteria was performed respectively. In the latter, the percentage of copper dissolution was still higher than the percentages obtained with pure cultures (36 % with a T. thiooxidans culture and 40 % with a T. ferrooxiaims culture).