IGNOU ONR 2 2018 - A stream of 25 m3 /sec discharge has pollutant concentration of 400 pp

Question

A stream of 25 m³ /sec discharge has pollutant concentration of 400 ppm (mg/l). The effluent from an industry is discharged into the stream at the rate of 2.0 m³ /sec with a concentration of 20000 ppm. Compute the resultant concentration

22 Apr 2018

Answer :

Word Count : 55

The resultant concentration,

$\L _{0}=\frac{\mathbb{Q}_{p}\L _{1}+\mathbb{Q}_{e}\L _{2}}{\mathbb{Q}_{w}+ \mathbb{Q}_{r}}$

Here, $\mathbb{Q}_{p}$ _____ ________ ___ ____ ____ _________ ___ _______.
___ ________ ___ _________ _____ _________ ___ _________ _____ ___ _________.
____ ___ ___ _____ ___ ___ _____.
_________ _________ _________ _________ ____ _________ ________ ____ _________ ________ ___ ____.
________ ___.