n order to stay in compliance with recent and upcoming disinfection
byproduct regulations, many utilities are considering
advanced treatment processes such as granular activated
carbon (GAC). However, there is a lack of research concerning the
full-scale performance of GAC and changes in GAC's pore structure
after multiple cycles of water treatment and thermal reactivation.
This article examines how the changes in GAC pore structure
that occur after successive reactivations influence adsorption of
total organic carbon (TOC). The authors show that when implemented
prior to chlorination, GAC can proficiently adsorb TOC at
full scale. Further, they show that although GAC's extensive
internal pore structure is altered, GAC still adsorbs TOC proficiently
through as many as six cycles of water treatment and
thermal reactivation. As regulations become increasingly strict,
many utilities may be interested in the long-term "real-world"
effectiveness of GAC for removing TOC. Includes 25 references, figures.
| Edition : | Vol. 95 - No. 2 |
| File Size : | 1
file
, 280 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 10 |
| Published : | 02/01/2003 |
