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[A pressure gravity-diffusive effect for flat polymeric membrane and ternary non-electrolyte solutions]
A Slezak1, J Wasik, J Jasik-Slezak
1Wydział Zarzadzania, Politechnika Czestochowska.
Polimery W Medycynie
|November 20, 2001
Summary
This study models pressure effects in a single-membrane osmotic-diffusive cell using Nephrophane membranes. Findings reveal convective instability enhances diffusive permeability, impacting solute transport.
Area of Science:
- Physical Chemistry
- Membrane Science
- Transport Phenomena
Context:
- Investigates a single-membrane osmotic-diffusive cell with Nephrophane membranes.
- Examines binary and ternary non-electrolyte solutions.
- Considers horizontal membrane positioning with two configurations (A and B).
Purpose:
- Elaborate the pressure gravidiffusive model equation.
- Calculate pressure gravidiffusive effects for configurations A and B.
- Interpret results regarding convective instability.
Summary:
- Presents calculations of pressure gravidiffusive effects in a horizontal osmotic-diffusive cell.
- Utilizes a flat, microporous, symmetric polymeric Nephrophane membrane.
- Analyzes transport of aqueous glucose, ethanol, and ternary solutions.
Impact:
- Interprets results in terms of convective instability.
- Demonstrates increased diffusive permeability due to convective instability.
- Highlights the role of concentration boundary layers in membrane transport.
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