Mixtures Flashcards
1
Q
Water is treated for salts and bacteria ( don’t want to drink salty water or water with bacteria). Describe the steps in treating water.
A
Water pumped from river Water filtered through sand Alum added to water Flow settles to the bottom to form sediment Water treated with chlorine ( bacteria)
2
Q
What are some common contaminants found in water.
A
Sewerage (bacteria)- chlorine
Rubbish- screens
3
Q
Name some processes used to separate materials in recycling plants?
A
Magnets- separates aluminium (non magnetic) and steel ( magnetic)
Hand separation- separates non recyclables with recyclables
Drum screens- separates paste on particle size
