Full Description

The natural organic matter (NOM) from a large quantity (1000 L) of groundwaterfrom a Western Australian bore was isolated and separated into three polarity-basedfractions (hydrophobic, transphilic and hydrophilic) using an XAD-8/XAD-4 resinfractionation method. These NOM fractions were separately treated by the magneticion exchange (MIEX) resin process to investigate the effect of the MIEX processon different organic polarity-based fractions. MIEX was effective for targeting themore non-polar (hydrophobic) and the intermediate polarity (transphilic) NOM, withsimilar DOC removals observed for both the hydrophobic and transphilic fractionsfrom this groundwater. Analysis of the NOM samples before and after MIEXtreatment by SEC-OCD showed that, for the hydrophobic fraction, organic matterover a wide range of apparent molecular weights, was removed, with particularlygood removal of the high molecular weight material. Includes 18 references, table, figures.

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Edition: Vol. - No. Published: 11/01/2007 Number of Pages: 10File Size: 1 file , 240 KB