Membranes: A Variety of Energy Landscapes for Many Transfer Opportunities.

ABSTRACT: A membrane can be represented by an energy landscape that solutes or colloids must cross. A model accounting for the momentum and the mass balances in the membrane energy landscape establishes a new way of writing for the Darcy law. The counter-pressure in the Darcy law is no longer written as the result of an osmotic pressure difference but rather as a function of colloid-membrane interactions. The ability of the model to describe the physics of the filtration is discussed in detail. This model is solved in a simplified energy landscape to derive analytical relationships that describe the selectivity and the counter-pressure from ab initio operating conditions. The model shows that the stiffness of the energy landscape has an impact on the process efficiency: a gradual increase in interac

SUBMITTER: Bacchin P 

PROVIDER: S-EPMC5872192 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature