Evaluation of Membrane Fouling in a Pressure Retarded Osmosis System [in Japanese]
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This study evaluated the fouling of a forward osmosis membrane in a pressure retarded osmosis (PRO) system using Aldrich humic acid (AHA) as a model foulant. Fouling behaviour was evaluated quantitatively by observation of the decline in water permeability in the fouling tests: when AHA and CaCl<sub>2</sub> were added to the feed solution (FS), severe fouling (51 ％ decline) occurred; when only AHA was added to FS, moderate fouling (23 ％ decline) occurred. Photographs of the membrane surfaces after fouling tests indicate that the severe fouling is due to the formation of a dense layer of cross-lined AHAs with Ca<sup>2＋</sup> on the membrane surface of the FS side.
- Bulletin of the Society of Sea Water Science, Japan
Bulletin of the Society of Sea Water Science, Japan 68(2), 102-103, 2014
The Society of Sea Water Science, Japan