What is the surface loading rate of a circular tank with a diameter of 50 ft and a flow of 2.4 MGD?

To determine the surface loading rate of a circular tank, you first need to calculate the surface area of the tank and then divide the flow rate by this surface area.

The diameter of the tank is given as 50 feet, which allows us to find the radius by dividing the diameter by 2. Thus, the radius is 25 feet. The surface area (A) of a circle is calculated using the formula:

[

A = \pi r^2

]

Substituting in the radius:

[

A = \pi (25^2)

]

[

A = \pi (625)

]

[

A \approx 1963.5 \text{ square feet}

]

Now, the flow rate is provided as 2.4 million gallons per day (MGD). To find the surface loading rate, you need to convert the flow rate into gallons per minute (GPM):

[

2.4 \text{ MGD} = 2.4 \times 10^6 \text{ gallons/day}

]

[

\text{Flow in GPM} = \frac{2.4 \times 10^6 \text{ gallons}}