Efficient Cultivation of Acidithiobacillus Ferrooxidans with Pyrite and Its Process Analysis
An efficient cultivation of acidithiobacillus ferrooxidans with pyrite as an energy source was studied and the utilization of pyrite energy during the cultivation was analyzed. It is found that acidithiobacillus ferrooxidans bacteria concentration was up to 6.4×108cell/mL after 144 h cultivation with pyrite concentration at 10 g/L, initial bacteria concentration at 15%and pH of 2.0.The energy provided by per unit mass pyrite during the cultivation of acidithiobacillus ferrooxidans was about 34.7 times that by per unit mass FeSO4·7H2O. It is concluded that acidithiobacillus ferrooxidans can be efficiently cultivated with pyrite.