Extraction Flashcards
1
Q
What is Bioleaching
A
when bacteria is used on a low grade ore to extract the metal ions from within it
2
Q
What is Phytoextraction
A
When plants are grown, which can absorb compounds, then burnt to form ash.
3
Q
What are the positives of bioleaching
A
Doesn’t require high temperature
4
Q
What are the negatives of bioleaching
A
Toxic substances produced
5
Q
What are the positives of Phytoextraction
A
Can extract metals from contaminated soils
6
Q
What are the negatives of Phytoextraction
A
Expensive and depends on weather
7
Q
What are the positives of using both phytoextraction and bioleaching
A
No harmful gasses produced, Less damage to land, conserves supply of high grade ores
8
Q
What are the negatives of using both phytoextraction and bioleaching
A
Slow
