Robert M. Counce

Liquidus Curves of AgNO3(aq) Calculated from the Modified Adsorption Isotherm Model for Aqueous Electrolytes

Summary. The Brunauer-Emmett-Teller (BET) adsorption isotherm as modified by Robinson and Stokes is used to calculate the liquidus curve of AgNO3(aq) including the eutectic point and metastable phases. The simplified approach described here predicts the liquidus curves by using sparse data and readily available constants.

A Model of a Fixed-Film Trickle-Filter Bioreactor for TCE Degradation

A mechanistically based model of a fixed-film trickle-filter bioreactor for cometabolic degradation of TCE has been developed. This model incorporates diffusional and kinetic resistances and generates estimates of TCE stripped from the liquid by gas as well as the extent of biological degradation of TCE. The model is consistent with a limited amount of experimental data. Further experience with this modeling approach is necessary in order to determine if this is a useful procedure for correlating bioreactor performance for design and scale-up.