A plant effluent flowing at a rate of five million pounds per day contains 15 mg of solids. How many pounds of solids will be discharged per day?

To determine the amount of solids discharged per day in pounds, you can use the flow rate of the effluent along with the concentration of solids per million pounds of effluent.

In this scenario, the effluent flow rate is five million pounds per day, and the concentration of solids is 15 mg (milligrams) per liter. To find the total pounds of solids discharged, it's helpful to convert the concentration from mg to pounds since the final answer must be in pounds.

First, note that there are approximately 453,592 mg in a pound. To convert the concentration of solids from mg to pounds, you can use the following conversion:

1. Calculate the total amount of solids in milligrams:

• Since there are 5 million pounds of flow, we first need to convert pounds into liters for the concentration calculation if needed, but since we are looking into solids discharge based on pounds directly, we will focus on the total effluent weight directly.

The concentration of solids is given as 15 mg per every pound of effluent:

• 15 mg × (5,000,000 pounds) = 75,000,000 mg of solids

2. Now convert milligrams to pounds:

• Since there