Making Potable Water:

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Step 1
Screen large insoluble matter (solids).
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Step 2
Remove solids by sedimentation (small insoluble matter).
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Step 3
Flocculation (removes tiny insoluble matter).
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Step 4
Filtration - gravel and sand beds filter out any other insoluble solids.
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Step 5
Sterilisation
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1st method of Sterilisation
Chlorination (cheap) - long term protection
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2nd method of Sterilisation
Ozonolysis (react with ozone)
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3rd method of Sterilisation
UV treatment - kills any harmful bacteria or microbes
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Other cards in this set

Card 2

Front

Step 2

Back

Remove solids by sedimentation (small insoluble matter).

Card 3

Front

Step 3

Back

Preview of the front of card 3

Card 4

Front

Step 4

Back

Preview of the front of card 4

Card 5

Front

Step 5

Back

Preview of the front of card 5
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