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Science CBSE Homework Assignments
Class 7
Waste water story
Treatement of waste water
1.
Parts of WWTP
Question:
4
m.
Label the following:
Answer variants:
Digester
Settling tank
Clarifier
Aeration tank
Bar screen
Girt tank
Bar screen
Aerator
1
)
What does
?
in red colour indicate in the picture?
2
) Identify the image:
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