Question

Water flowing with TSS at the rate of 40 Liter/min, is discharged into a river flowing at the rate of 20 Liter/min, if the concentration of TSS in the river is 5 mg/L, what is the concentration of TSS in water?

(a) 5 mg/L

(b) 10 mg/L

(c) 15 mg/L

(d) 20 mg/L

This question was posed to me in quiz.

I need to ask this question from Multiple Component Systems in section Introduction to Material Balances of Basic Chemical Engineering

Answer 1

Correct answer is (b) 10 mg/L

The explanation is: Concentration of TSS in water = 5*40/20 = 10 mg/L.