What is Oxygen Transfer Rate (OTR)?
The mass of oxygen transferred from gas to liquid per unit volume per unit time in a bioreactor or aeration system.
View Industrial AgitatorsOxygen Transfer Rate (OTR) Explained
OTR determines whether the agitator and sparger can supply sufficient dissolved oxygen at peak metabolic activity. It depends on agitator power, impeller type, sparger design and air flow rate. Higher agitator power and smaller bubble size increase kLa.
Common Applications
- Pharmaceutical fermentation
- Biogas aerobic treatment
- Wastewater aeration
- Industrial enzyme production
Selection Factors
Correct selection depends on the process objective and site conditions. For Oxygen Transfer Rate (OTR), Premix usually reviews these points before recommending equipment:
- kLa requirement
- Agitator power input
- Sparger design
- Air flow rate
Why It Matters In Plant Operation
Oxygen Transfer Rate (OTR) affects process stability, chemical usage, equipment life and final output quality. A correctly selected solution helps reduce trial-and-error at site and supports more predictable daily operation.
Frequently Asked Questions
What is Oxygen Transfer Rate (OTR)?
The mass of oxygen transferred from gas to liquid per unit volume per unit time in a bioreactor or aeration system.
Where is Oxygen Transfer Rate (OTR) commonly used?
It is commonly used in Pharmaceutical fermentation, Biogas aerobic treatment, Wastewater aeration, Industrial enzyme production.
How does Premix select Oxygen Transfer Rate (OTR)?
Premix reviews kLa requirement, Agitator power input, Sparger design, Air flow rate along with the plant layout and maintenance requirement.