AWWA MTC57609

Membrane fouling is one of the primary obstacles that have hampered the use of reverse osmosis (RO)membrane technology in the drinking water industry. Thus, developing membraneswith a better resistance to fouling has become an area of increasing significance. In thisstudy, five commercially available fouling resistant low-pressure RO membranes wereinvestigated for the treatment of seasonally brackish surface water with high organiccontent (H 24 mg/L). The membranes investigated are LFC-1 (Hydranautics), X20(Trisep), BW30FR1 (FilmTec), SG (Osmonics), and BE-FR (Saehan). All membraneswere thin film composite made of polyamide derivatives. The surfaces of thesemembranes were thoroughly characterized in terms of roughness, charge andhydrophobicity, using Atomic Force Microscopy (AFM), Streaming Potential Analysis(SPA), and contact angle measurements by Goniometer, respectively. The foulingresistant membranes were further evaluated by performing flat-sheet membrane testingusing coagulated surface water. In addition, pilot-scale evaluation was conducted toassess long-term performance. Includes 5 references, tables, figures.

Product Details

Edition:

Vol. - No.

Published:

03/05/2003

Number of Pages:

8

File Size:

1 file , 1.4 MB