The Flory–Huggins Isotherm and Water Contaminant Adsorption: Debunking Some Modeling Fallacies

The Flory–Huggins (FH) isotherm first appeared in the literature of water contaminant adsorption mid-2000s. It has come into limelight and received considerable attention recent years, large part due to regular coverage review articles. Here, we point out that a linear form FH is incompatible with original nonlinear version. We show conclusively was destroyed beyond recognition by linearization method. As result, linearized suffers from following serious defects: (1) Its parameter estimates are incorrect nonsensical. (2) not possible plot standard curves adsorbed phase concentration versus liquid concentration. These anomalies, or “red flags”, arise use data correlation reported for time. To avoid publishing meaningless research, it advisable fitting. go routine application (e.g., simple thermodynamic calculation), this work describes novel uses evaluate energy distribution heterogeneous adsorbents.