Difference between revisions of "Bioleaching"
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==Key Stage 4== | ==Key Stage 4== | ||
===Meaning=== | ===Meaning=== | ||
| − | [[Bioleaching]] is a process of [[Extraction of Metals|extracting]] [[mineral]]s from their [[ore]] using [[bacteria]] then using [[ | + | [[Bioleaching]] is a process of [[Extraction of Metals|extracting]] [[mineral]]s from their [[ore]] using [[bacteria]] then using [[Extracting Metals by Electrolysis|electrolysis]] in [[solution]] to extract the [[metal]] form the [[mineral]]. |
===About Bioleaching=== | ===About Bioleaching=== | ||
Revision as of 11:44, 4 April 2019
Key Stage 4
Meaning
Bioleaching is a process of extracting minerals from their ore using bacteria then using electrolysis in solution to extract the metal form the mineral.
About Bioleaching
Bioleaching has several stages:
- Waste low grade ores are fed to bacteria where they take in the minerals and through chemical reactions convert them into soluble minerals.
- The solution is then filtered.
Electrolysis is then used to extract the metal from the mineral.
- Bioleaching is cheaper than smelting but takes much longer to extract the minerals than conventional mining.
- Bioleaching is used on the waste low grade ores from mining smelting would be too expensive and not enough mineral extracted.