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Integrated analysis of NOM removal by magnetic ion exchange
Author(s) -
Singer Philip C.,
Boyer Treavor,
Holmquist Abigail,
Morran Jim,
Bourke Michael
Publication year - 2009
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.2009.tb09824.x
Subject(s) - ion exchange resin , ion exchange , water treatment , chemistry , volumetric flow rate , natural organic matter , volume (thermodynamics) , dissolved organic carbon , coagulation , pulp and paper industry , batch reactor , organic matter , chromatography , ion , environmental chemistry , environmental engineering , environmental science , catalysis , inorganic chemistry , organic chemistry , psychology , physics , quantum mechanics , psychiatry , engineering
The magnetic ion exchange (MIEX®) process has been shown to be effective for the removal of natural organic matter (NOM) from drinking water. The process involves application of the resin in a pretreatment mode to remove NOM before subsequent coagulation, oxidation, and disinfection. Many batch and continuous‐flow studies have been performed on a variety of waters to determine the requisite resin doses for effective NOM removal. This work examined the results of several of those studies; compared the results of batch, pilot‐scale, and full‐scale tests; and integrated the findings into a composite picture describing MIEX process performance. Results indicated that dissolved organic carbon can be efficiently removed by effective resin doses of 0.5‐1.0 mL of resin per litre of water treated or bed volume rates on the order of 1,000 L of water treated per litre of resin regenerated and that batch test results can be used to scale up to plant‐scale performance.