Design a septic tank using the data given below.
I.The septic tank is for a university college.
II.The number of users is 2000 students and 200 staff members.
III.Water consumption rate is 50l/h/d and 150l/h/d for students and staff members respectively.
IV.Detention period is 48 hours.
V.Sludge is removed once in two years.
VI.Sludge accumulation is assumed to be 30l/h/d.
VII.Assume 80% of water consumption becomes sewage.