Hello Hector,
both fine bubble models are based on the Irvine (carbon footprint) aeration model.<br> The difference lies in the way alpha factor is calculated: in model #1, alpha is function of SRT, while in model #2, alpha is function of the solids concentration in the tank.
So the key-difference at the project level is that model #1 exposes SRT, while model #2 MLSS, as a manipulated variable.
