This study looks at whether natural organic matter (NOM) that has permeated through a membrane, foul an identical downstream membrane. The approach involved serial filtration with varying lag times between adjacent membranes. Conclusions were that: fouling proceeds by progressive narrowing of membrane pores at mouth, followed by coverage of the membrane surface by a gel layer;
only a few percent of feed NOM is removed by the first membrane; however, the permeate containing the remaining NOM has a much lower tendency to foul downstream membranes; the fouling rate and surface coverage by globules of the downstream membranes increases with increasing storage time; and,
NOM globules can form on a membrane by aggregation of small molecules that have passed through an upstream membrane. Includes reference, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 2.8 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 29 |
| Published : | 06/01/2007 |
