Purification performance on micropolluted source water by magnetic ion exchange resin (MIEX) and powder activated carbon (PAC) was studied in this paper. Removal efficiencies of DOC and UV254 by MIEX and PAC were compared

respectively. The effluents of MIEX and PAC treatment were analyzed through gel permeation chromatography (GPC) and three-dimensional fluorescence spectroscopy (3DEEM). The removal characteristics of organic pollutants with different relative molecular weights and composition were discussed. The results showed that under the normal dosages of the both absorbents (where MIEX was 5—8 ml·L-1 and PAC was 30—50 mg·L-1)

the average removal efficiencies of DOC and UV254 by MIEX treatment were 23% and 20% higher than that by PAC treatment

respectively. However

with increasing absorbent dosages

the maximum removals of DOC and UV254 for MIEX were only 6%—8% higher than that for PAC. Compared with PAC treatment

organic pollutants with wider range of relative molecular weight distribution was removed by MIEX treatment. In the range of 5000—50000

MIEX had a more excellent removal performance than PAC. On the other hand

a slightly higher removal of humic acid and fulvic acid was obtained for MIEX than PAC

but the removal of protein by MIEX was significantly higher than that by PAC. Kinetic analysis suggested that the adsorption process of both MIEX and PAC fitted the pseudo-second-order model

and the adsorption rate of MIEX was about 40 times higher than PAC.