This calculator is essential for water plant operators. It determines the amount of a chemical (like chlorine or fluoride), in pounds per day, that needs to be added to the water to achieve a specific concentration. It uses the standard industry formula based on the flow rate in Million Gallons per Day (MGD) and the desired concentration in milligrams per liter (mg/L).
Detention time is the theoretical amount of time that water spends inside a tank or basin. It's a critical factor in treatment processes like sedimentation and disinfection, as it ensures the water is held long enough for the process to be effective. This calculator finds the detention time in minutes by dividing the tank's volume by the flow rate of water moving through it.
The filtration rate measures how fast water is passing through a filter, typically measured in gallons per minute per square foot (gpm/ft²). Monitoring this rate is important for ensuring that filters are not overloaded, which could reduce their effectiveness. This calculator finds the rate by dividing the flow rate by the surface area of the filter.