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DFCCIL_CE _Quiz 37
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Question 1
Activated sludge is the:
Question 2
The MLSS concentration in the aeration tank of extended aeration activated sludge process is 5000 mg/l. If one litre of sample settled in 30 minutes and the measuring cylinder showed a sludge volume of 200 mg/l, then the sludge volume index would be nearly:
Question 3
A township is required to treat 400000 litres of sewage per day which has a 5 day BOD of 140 ppm. The oxidation pond is used for the purpose. The effluent can have a BOD of 15ppm.The loading is to be 25 kg of 5 day BOD per hectare per day. The required area of the pond is
Question 4
Primary treatment of waste water is made with the application of which of the following?
Question 5
The MLSS concentration in the aeration tank of extended aeration activated sludge process is 4000 mg/l. If one litre of sample settled in 30 minutes and the measuring cylinder showed a sludge volume of 200 ml, then the sludge volume index would be nearly:
Question 6
The different actions that take place in anaerobic decomposition process are the following:
a) Alkaline fermentation
b) Acid fermentation
c) Acid regression
d) Methane formation
What is the correct sequence of occurrences of these actions from earlier to later?
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AE & JE ExamsJun 22AE & JE Exams