paper 2 bioleach...

Question 1

bioleaching

Answer 1

• bavteria mixed with low grade copper ore
• the bacteria carry out chemical reactions
• produce a solution called leachate
• this ciontains the copper

Question 1

phytomining

Answer 1

• pkants grown in places with the low grade copper ore \
• they absorb this and cioncentrate it in their tissue
• the plants harvested / oncentrated and then burned
• theirb ash contains a high cincentration of copper

Question 2

to seperate the copper

Answer 2

• seperate by electrolysis or adding a more reacrtove to dosplace