Thermophilic Iron-Oxidizing Bacteria Found in Copper Leaching Dumps
نویسندگان
چکیده
منابع مشابه
Thermophilic iron-oxidizing bacteria found in copper leaching dumps.
Rod-shaped bacteria capable of oxidizing ferrous iron at 55 degrees C were cultured from samples of a copper mine leach dump. Yeast extract or cysteine was required by these Thiobacillus-like bacteria for growth, using ferrous iron as an energy source.
متن کاملLeaching of pyrite by acidophilic heterotrophic iron-oxidizing bacteria in pure and mixed cultures.
Seven strains of heterotrophic iron-oxidizing acidophilic bacteria were examined to determine their abilities to promote oxidative dissolution of pyrite (FeS2) when they were grown in pure cultures and in mixed cultures with sulfur-oxidizing Thiobacillus spp. Only one of the isolates (strain T-24) oxidized pyrite when it was grown in pyrite-basal salts medium. However, when pyrite-containing cu...
متن کاملMicrobial Leaching Process to Recover Valuable Metals from Spent Petroleum Catalyst Using Iron Oxidizing Bacteria
Spent petroleum catalyst from Korean petrochemical industry contains trace amount of metals such as Ni, V and Mo. Therefore an attempt was made to recover those trace metal using bioleaching process. Different leaching parameters such as Fe(II) concentration, pulp density, pH, temperature and particle size of spent catalyst particle were studied to evaluate their effects on the leaching efficie...
متن کاملReduction of soluble iron and reductive dissolution of ferric iron-containing minerals by moderately thermophilic iron-oxidizing bacteria
Five moderately thermophilic iron-oxidizing bacteria, including representative strains of the three classified species (Sulfobacillus thermosulfidooxidans, Sulfobacillus acidophilus, and Acidimicrobium ferrooxidans), were shown to be capable of reducing ferric iron to ferrous iron when they were grown under oxygen limitation conditions. Iron reduction was most readily observed when the isolates...
متن کاملGrowth kinetics of attached iron-oxidizing bacteria.
A model of growth and substrate utilization for ferrous-iron-oxidizing bacteria attached to the disks of a rotating biological contactor was developed and tested. The model describes attached bacterial growth as a saturation function in which the rate of substrate utilization is determined by a maximum substrate oxidation rate constant (P), a half-saturation constant (K(s)), and the concentrati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1978
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.36.3.523-525.1978