Description
This slide presentation outlines a study on micropollutant rejection by high pressure reverse osmosis (RO) and nanofiltration (NF) membranes. Part 1 presents the rejection of anionic inorganic micropollutantsby negatively charged membranes includingchromate,perchlorate,and arsenate. Part 1 Hypotheses involvesmembrane properties enhancing rejection include lower MWCO andgreater (negative) surface charge. Part 2 presentsrejection of trace organic micropollutantsby NFand RO:compound versus membrane properties. Part 2 Hypotheses – Most Past Studies Have Often OverestimatedRejections due to Short Time Frame of Tests,not Allowing for Pre-Saturation of Membrane;Compound Transport through Membrane IsDictated by Solute-Membrane Interactions(Steric, Electrostatic, and Partitioning); and, Partitioning (either Hindered or Facilitated)Embodies Solute-Membrane Affinity,Solute Diffusion through, and Solubility in, theMembrane. Includes tables, figures.
Product Details
- Edition:
- Vol. – No.
- Published:
- 06/01/2006
- Number of Pages:
- 44
- File Size:
- 1 file , 3.4 MB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
