| Formula for calculating size
of generator: |
Step
1: decide how much ozone you need by analyzing water. For each
mg/l of:
Iron: Use .4 to .7 mg/l ozone
Manganese: Use .5 to 1.0 mg/lozone
Hydrogen Sulfide: 2.2 to 3.3 ozone |
| Step
2: Determine flow rate in gallons per minute. |
| Step
3: Use formula: GPM X .0121 X desired dosage in ppm = lbs per
day required. |
Example:
3.0 ppm of iron, 1.0 ppm manganese: 1.7 ppm of ozone required.
Flow rate is 10 gpm
10 X .0121 X 1.7 = .2 lbs per day
Ozone systems are sized in lbs per day, or grams per hour for the
smaller units. So convert lbs per day to grams per hour by:
1 lb = 448 grams so 448 x .2 = 89 grams per day or 3.8 grams per hour.
|
| NOTE: other factors such as
pH, and turbidity can affect ozone demand, so it can be important
to size for more capacity than is calculated and adjust actual output
of ozone, or vary flow rate to achieve desired results. |
