Waste Water Management Worksheet-2
Fill in Blanks
-
Sludge can be used as _____ after treatment.
-
Stage of waste water treatment to kill microorganisms is ______.
-
Excessive use of _____ cause eutrophication.
-
Waste water generated from industrial activity is known as ____.
-
_____ is a network of pipes used to carry sewage.
-
A process in which sludge is burnt into ashes is called ____.
True or False
-
Using sewage water for gardening is a fair way of water recycling.
-
Liquid wastes discharged from industries are called effluent.
-
To reduce the use of water means drinking less water.
-
Fertilizers are a big source of water pollution in rural areas.
-
An open drain can be breeding site for mosquitoes.
-
Match the following:
|
|
Column – I
|
|
Column – II
|
|
A
|
Over population
|
P
|
Municipal water supply
|
|
B
|
Human faeces
|
Q
|
Water scarcity
|
|
C
|
Sedimentation, filtration, chlorination
|
R
|
Water pollution
|
|
D
|
Reuse, Reduce, Recycle
|
S
|
Waste water treatment
|
|
E
|
Preliminary, primary and secondary treatment
|
T
|
Water management
|
Answer Key:
-
fertilizer
-
tertiary treatment
-
nutrients
-
Effluent
-
Sewer system
-
Incineration
-
F
-
T
-
F
-
T
-
T
-
A-Q; B-R; C-P; D-T; E-S
