A total of 35 rapid small-scale column tests (RSSCTs) were performed to investigate
the effects that influent total organic carbon (TOC) concentration, empty-bed contact time
(EBCT), field-scale granular activated carbon (GAC) particle size, and small-scale GAC
particle size have on TOC breakthrough in a GAC adsorber. Results from the extensive
experimental matrix of RSSCTs systematically demonstrate the following: increasing the
influent TOC concentration decreased the time for TOC to breakthrough a GAC adsorber;
increasing the adsorber EBCT led to non-proportional increases in TOC breakthrough times
and apparent efficiencies of scale; decreasing the field-scale GAC particle size from 8x20-
to 12x40-mesh nearly doubled the TOC breakthrough time for all EBCTs and for all fieldscale
GAC particle sizes tested; and, decreasing the small-scale GAC particle size from
60x100- to 100x200-mesh non-proportionally decreased the TOC breakthrough time, but the
effects were only observed for the tests performed with the large 8x20-mesh field-scale GAC
at relatively small EBCTs (5- and 10-minutes). Includes 6 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 310 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 11 |
| Published : | 11/15/2004 |
