Anion exchange has been shown to be an effective process for the removal of natural
organic material (NOM) from raw drinking water. In contrast to conventional bed-type
ion exchange process configurations which follow solid-liquid separation processes, the
magnetic ion exchange (MIEX) process, in which the anion exchange resin is
impregnated with magnetic iron oxide, can be used as a pretreatment option to remove
NOM prior to subsequent coagulation, oxidation, and disinfection. When used in this
manner, coagulant, oxidant, and disinfectant doses are greatly reduced, as is the
formation of subsequent disinfection byproducts. Many batch and continuous-flow pilot
plant studies have been performed on a variety of raw waters to determine the requisite
resin doses for effective NOM removal. The objectives of this paper were to examine the
results of those studies, compare the results of batch, pilot-scale and full-scale tests, and
to integrate the findings into a composite picture describing the performance of the MIEX
process. Includes 2 references, table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 160 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 13 |
| Published : | 11/01/2007 |
