Civil Engineering
GATE CE topic:water-and-wastewater-treatment PYQs
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Questions 81–81 of 81. Imported answers require independent review unless marked reviewed.
Question 55
Open questionCENAT2 marksNeeds review
The wastewater having an organic concentration of 54 mg/l is flowing at a steady rate of 0.8 m³/day through a detention tank of dimensions 2 m × 4 m × 2 m. If the contents of the tank are well mixed and the decay constant is 0.1 per day, the outlet concentration (in mg/l, up to one decimal place) is ______.
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