Ozone Conversions and Equations
How to Calculate Ozone Generator Capacity for Water Treatment Applications
In water treatment systems, the required ozone generator capacity depends on the water flow rate, target ozone dosage, transfer efficiency, temperature, and overall ozone demand of the water being treated.
The theoretical ozone production required for a given application can be estimated using the following equation:
Required Ozone Production = (Water Flow Rate) x (Ozone Dosage)
Example: Ozone Generator Sizing for a 40 GPM Water Flow
Let’s consider a water treatment system that operates at a flow rate: 40 GPM adn required a ozone dosageof 2 mg/L
Step-by-Step Calculation
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- Convert gallons per minute to litres per hour: 40GPM × 3.78 L/gal ×60 min/hr = 9,072 L/hr
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- Apply the required ozone dosage: 9,072 L/hr × 2mg/L = 18,144 mg/hr
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- Convert milligrams to grams: 18,144 mg/hr = 18.1 g/hr
The system requires a minimum theoretical ozone generator capacity of 18.1 g/h of ozone production
This value represents the theoretical ozone demand under ideal conditions. In real-world applications, engineers typically add additional capacity to compensate for factors such as ozone transfer efficiency, water quality variations, temperature, and ozone decay.
Interactive Ozone Generator Calculator
Use the calculator below to estimate the theoretical ozone production required for your specific application.
Ozone Production needed based on your water flow rate and ozone dosage (ppm)
Note: The result shows the amount of ozone in g/h needed to dose the water with the selected PPM of ozone.
