Removal of dissolved organic carbon from surface water by anion exchange and adsorption: Bench-scale testing to simulate a two-stage countercurrent process

Effect of resin charged functional group, porosity, and chemical matrix on the long-term pharmaceutical removal mechanism by conventional ion exchange resins

“…However, no significant difference in the long-term removal performance for any of the 12 pharmaceuticals was observed due to the differences in resin chemical matrices. During previous drinking water treatment, the polyacrylic AERs (mainly MIEX ® resin) often display a more effective removal of NOM (mainly humic and fulvic acid) than the polystyrenic resins (Boyer and Singer, 2008;Hsu and Singer, 2010;Graf et al, 2014). However, the higher NOM removal by the MIEX ® resin could also be attributed to the combined effect of different resin chemical matrices and particle sizes (approximately 2e5 times smaller than conventional AERs).…”

Reverse osmosis concentrate treatment by a PAC countercurrent four-stage adsorption/MF hybrid process

“…(20) and shown in Table 6. A short HRT can be obtained with a low value of n. Supplementary result of less membrane fouling could also be obtained in low value of n because of the lesser amount of PAC accumulated in reactor B.…”

“…However, for the PAC/MF method, the reducing PAC consumption or the improving removal efficiency is still a key issue that needs to be dealt with. This purpose could be achieved by using countercurrent adsorption technology [19][20][21].…”

Ion exchange resin applied to obtain the clarified cashew juice

“…Studies have assessed the ion exchange resin potential in many processes to application in water treatment [21][22][23][24] generated by many kinds of industries. In the food industry, ion exchange resins have been applied in separation processes, including extraction and purification of food A c c e p t e d M a n u s c r i p t 4 [25][26][27][28][29].…”