Oxygen Transferred Formula:
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Definition: This calculator determines the actual amount of oxygen transferred from air to water under field conditions, accounting for temperature and other factors.
Purpose: It's essential for wastewater treatment system design and operation to ensure adequate oxygen supply for biological processes.
The calculator uses the formula:
Where:
Explanation: The formula adjusts standard oxygen transfer rates for actual field conditions including temperature effects.
Details: Accurate oxygen transfer calculations ensure proper aeration system design, energy efficiency, and effective wastewater treatment.
Tips: Enter the oxygen transfer capacity, DO difference, correction factor (default 0.5), and temperature. All values must be valid positive numbers.
Q1: Why is temperature important in oxygen transfer?
A: Oxygen solubility decreases with increasing temperature, affecting transfer rates.
Q2: What's a typical correction factor value?
A: Common values range from 0.4 to 0.8 depending on aeration system type and wastewater characteristics.
Q3: How do I determine the DO difference?
A: Subtract your operating dissolved oxygen level from the saturation DO at your system temperature.
Q4: What does the 1.024 factor represent?
A: It's the temperature correction coefficient for oxygen transfer in water.
Q5: Why divide by 9.17 in the formula?
A: This converts the result to standard units (kg/s/W) from the empirical relationship.