Question

water utility calculations - module 5 - solving for the unknown value

you are required to maintain a chlorine residual of 1.0 mg/l in the effluent from your wastewater plant. a chlorine dosage of 7.5 mg/l is applied. what is the chlorine demand of the effluent? (round answer to one decimal place)

use the formula: dosage = demand + residual

answer: mg/l

Explanation:

Identify the given values and formula

$$
LATEXBLOCK0
$$

Solve for the unknown demand

$$
LATEXBLOCK1
$$

Answer:

You are required to maintain a chlorine residual of 1.0 mg/L in the effluent from your wastewater plant. A chlorine dosage of 7.5 mg/L is applied. What is the chlorine demand of the effluent? (round answer to one decimal place)

Use the formula: Dosage = Demand + Residual

Answer: <blank>6.5</blank> mg/L