Potable Water Flashcards

1
Q

What are the steps to treat water from reservoirs?

A

Filter to remove insoluble particles and leaves

Sterilise with chlorine, ozone, uv light to kill microbes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Why is it difficult to produce drinking water from waste water than water in lakes?

A

Water needs more processes to remove organic matter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Why is distillation not an economic method.?

A

Expensive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How could water be tested to show it’s pure?

A

Find boiling point

If impure, water will boil above 100 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How could a student check that all water had evaporated?

A

Re heat and weigh again

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is potable water?

A

Water that is safe to drink

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How do we remove sea water?

A

Desalination or reverse osmosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How does the process of desalination work?

A

Heat

Vapour produced and rises

Evaporates

Cools down

Condenses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What does the condenser do?

A

Allows cold water to flow so the vapour can condense and cool down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly