Carbon dioxide stripping in aquaculture -- part III: model verification

Based on conventional mass transfer models developed for oxygen, the use of the non-linear ASCE method, 2-point method, and one parameter linear-regression method were evaluated for carbon dioxide stripping data. For values of KLaCO₂ < approximately 1.5/h, the 2-point or ASCE method are a good fit to experimental data, but the fit breaks down at higher values of KLaCO₂. How to correct KLaCO₂ for gas phase enrichment remains to be determined. The one-parameter linear regression model was used to vary the C*_CO2 over the test, but it did not result in a better fit to the experimental data when compared to the ASCE or fixed C*_CO2 assumptions.