The objective of this study was to evaluate the characteristics of colloidal natural organic matter (NOM) in terms of
biodegradability, organic fouling and/or biofouling of the membrane. From the FTIR spectral
analyses of colloidal NOM, they have been found to contain a high BDOC content (38%),
including the N-acetyl groups of amino sugars and polysaccharides. The effects of size and
charge of NOM fractions were considered. Heterotrophic bacteria can be attached and taken in
despite their large molecular size. Bacteria can also move toward their favorite organic
compounds with negative charge. Due to these characteristics of colloidal NOM their effects in
drinking water treatment processes can be reduced by biological pre-treatment processes.
Colloidal NOM exhibit a significant flux decline compared to other NOM constituents, such as
hydrophobic and bulk NOM.
Includes 5 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 470 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 10 |
| Published : | 11/01/2002 |
