Question

The maximum daily demand of a city is 24*10^5 and the rate of filtration is 100 per litre per hour per m^2. What is the area of the filter?

(a) 10

(b) 100

(c) 1000

(d) 1500

I have been asked this question during an internship interview.

The above asked question is from Slow Sand Filter in division Filtration of Environmental Engineering

Answer 1

Right choice is (c) 1000

To elaborate: Maximum daily demand = 24*10^5

Rate of filtration = 100

Area of filter=Maximum daily demand/Rate of filtration=24*10^5/(100*24)

                                        =1000m^2.