Abstract
The interactions between membrane fouling and natural organic matter (NOM) properties were investigated in a series of filtration experiments of raw and flotated water in a submerged low-pressure membrane system of hydrophobic and hydrophilic membranes. Norwegian surface water NOM was characterized by its electrostatic properties i.e., surface charge, charge density, and was fractionated with respect to its hydrophobic/hydrophilic characteristics. Hydrophobic/hydrophilic interaction was a more dominant mechanism compared to charge repulsion in membrane fouling as shown from the preferential adsorption of hydrophobic fraction with the highest charge density onto hydrophilic and hydrophobic membranes, and positively charged hydrophilic fraction onto hydrophilic membrane.
Original language | English (US) |
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Pages (from-to) | 416-422 |
Number of pages | 7 |
Journal | Desalination and Water Treatment |
Volume | 34 |
Issue number | 1-3 |
DOIs | |
State | Published - Oct 2011 |
Externally published | Yes |
Keywords
- Charge repulsion
- Hydrophobic/hydrophilic interaction
- Membrane fouling
- Natural organic matter
- Submerge low-pressure membrane
ASJC Scopus subject areas
- Water Science and Technology
- Ocean Engineering
- Pollution