HORTICULTURE SCIENCE
PLANT BIOTECHNOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Why are thermophilic bacteria used in the biomining of gold?
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They work in high temperatures
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They work without oxygen
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They are inexpensive toproduce
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They work in California
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Explanation:
Detailed explanation-1: -Thermophilic Bacteria One type of “hyperthermophile", Methanopyrus kandleri, can even survive temperatures up to 122°C. (251.6°F)’ which is far above the boiling point of water. Hot Springs National park’s geothermal hot springs are an ideal environment for some species of these heat loving bacteria.
Detailed explanation-2: -Using Bacteria such as Acidithiobacillus ferrooxidans to leach copper from mine tailings has improved recovery rates and reduced operating costs. Moreover, it permits extraction from low grade ores – an important consideration in the face of the depletion of high grade ores.
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