A total chlorine dosage of 6.9 mg/L is required for disinfection. If the effluent flow is 3.1 mil gal/day and the hypochlorite used has 65% available chlorine, how many pounds/day of hypochlorite will be required?

To determine the pounds of hypochlorite required for disinfection, we need to first calculate the total chlorine dosage needed in pounds per day based on the effluent flow and the required chlorine concentration.

1. Convert the flow from million gallons per day to gallons per day:

Since the flow is given as 3.1 million gallons per day, this is equivalent to 3.1 million gallons x 1,000,000, resulting in 3,100,000 gallons per day.

2. Calculate the total daily chlorine dosage in mg:

The required chlorine dosage is 6.9 mg/L. To find the total amount of chlorine in milligrams per day, we will convert the volume of water (in gallons) to liters (1 gallon = 3.78541 liters).

[

\text{Total flow in liters} = 3,100,000 \text{ gallons} \times 3.78541 \text{ L/gallon} \approx 11,733,200 \text{ L}

]

The total chlorine requirement in mg can now be calculated as:

[

\text{Total chlorine requirement (mg)} = 6.