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Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:QUESTION 6
In rotatory biological contractors, microorganisms take oxygen from:
O Environment when the disc is outside the water
O Aerated wastewater
O Diffused aerator
Surface aerator
QUESTION 7
If excess nitrogen and phosphorus are disposed as effluent in receiving water body, this may cause.
Algal growth
Hardness
O Increase of pH
O Acidity
QUESTION 8
Advanced wastewater treatment is provided to remove
О сOD
Solids
Nutrients
BOD
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