GATE CE · 2017 · CE
Question 54: Water and Waste Water Quality and Treatment
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Question 54
CENAT2 marksNeeds review
Two wastewater streams A and B, having an identical ultimate BOD are getting mixed to form the stream C. The temperature of the stream A is 20°C and the temperature of the stream C is 10°C. It is given that
• the 5-day BOD of the stream A measured at 20°C = 50 mg/l
• BOD rate constant (base 10) at 20°C = 0.115 per day
• temperature coefficient = 1.135
The 5-day BOD (in mg/l, up to one decimal place) of the stream C, calculated at 10°C, is ______.
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2017CE
GATE CE 2017 · Paper 1
Civil Engineering · Original paper archive
- Section
- Civil Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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