Alternate Methods of Extracting Metals
Alternate Methods of Extracting Metals
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Metal ores are FINITE RESOURCES, meaning they will eventually RUN OUT.
As METAL ORES become harder to find and extract, alternative methods of extraction are becoming more important.
Traditional mining involves digging, moving and disposing of large amounts of rock which can DAMAGE the ENVIRONMENT.
There are TWO methods that can extract LOW GRADE ORES (rocks with a small amount of metal) while minimising damage to the environment:
PHYTOMINING uses plants to absorb METAL COMPOUNDS from the soil. The steps involved are:
BIOLEACHING involves using bacteria to extract metals. The process is as follows:
Once you have the metal compounds from phytomining or bioleaching, you can DISSOLVE THEM IN ACID and they can be processed to extract the pure metal. This can be done by:
Metal ores are FINITE RESOURCES, meaning they will eventually RUN OUT.
As METAL ORES become harder to find and extract, alternative methods of extraction are becoming more important.
Traditional mining involves digging, moving and disposing of large amounts of rock which can DAMAGE the ENVIRONMENT.
There are TWO methods that can extract LOW GRADE ORES (rocks with a small amount of metal) while minimising damage to the environment:
PHYTOMINING uses plants to absorb METAL COMPOUNDS from the soil. The steps involved are:
BIOLEACHING involves using bacteria to extract metals. The process is as follows:
Once you have the metal compounds from phytomining or bioleaching, you can DISSOLVE THEM IN ACID and they can be processed to extract the pure metal. This can be done by:
