Waste Water Management

Waste Water Management Worksheet-1

1. Waste water is

(a) water from leaking tanks

(b) Water released in industrial waste

(c) water in drains of town

(d) All of these

2. Clean drinking water can be obtained by

(a) Sedimentation

(b) Filtration

(c) Chlorination

(d) A combination of all of these

Waste Water Management Worksheet-2

Fill in Blanks

1. Sludge can be used as _____ after treatment.

2. Stage of waste water treatment to kill microorganisms is ______.

3. Excessive use of _____ cause eutrophication.

4. Waste water generated from industrial activity is known as ____.

5. _____ is a network of pipes used to carry sewage.

6. A process in which sludge is burnt into ashes is called ____.

True or False

7. Using sewage water for gardening is a fair way of water recycling.