The objective of this study was to determine alternative operational means of
reducing particle breakthrough and associated potential risks during filter ripening
for a plant that cannot filter-to-waste. The challenge with this particular study was
to meet the benchmark for the five-star "Excellence in Water Treatment" category
established by the International Water Treatment Alliance (IWTA). In this IWTA
category, the 95th percentile of filter turbidity values must be 0.10 NTU or less.
Accordingly, this project assesses a ripened filter on the basis of a turbidity of
0.10 NTU. This study focused on extended terminal subfluidization wash (ESTW) and
filter resting for optimizing filter ripening sequences (FRS). The ESTW procedure involves
extending the normal backwash duration at a subfluidization flow rate for an
amount of time sufficient to move one theoretical filter-volume of water through
the filter box (Amburgey, 2005). Includes 9 references, tables, figure.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 810 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 8 |
| Published : | 11/01/2009 |
