Fluidized ion exchange (FIX) to control NOM fouling in ultrafiltration

被引：39

作者：

Cornelissen, E. R. ^{[1
]}

Beerendonk, E. F. ^{[1
]}

Nederlof, M. N. ^{[2
]}

van der Hoek, J. P. ^{[3
]}

Wessels, L. P. ^{[1
]}

机构：

[1] Kiwa Water Res, NL-3430 BB Nieuwegein, Netherlands

[2] Vitens, NL-8901 BE Leeuwarden, Netherlands

[3] Waternet, NL-1096 BA Amsterdam, Netherlands

来源：

DESALINATION | 2009年 / 236卷 / 1-3期

关键词：

Fluidized ion exchange (FIX); NOM fouling; Ultrafiltration; Calcium removal; NOM removal; NATURAL ORGANIC-MATTER; NANOFILTRATION MEMBRANES; REMOVAL; WATER;

D O I：

10.1016/j.desal.2007.10.084

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

To control NOM fouling, either NOM or hardness ions can be (partly) removed before membrane filtration. In this work, anion Fluidized Ion Exchange (FIX) is used to remove NOM from untreated surface water and cation FIX is used to remove calcium and magnesium ions from untreated surface water. The effect of calcium and magnesium removal by cation FIX is studied in lab-scale ultrafiltration (UF). FIX was successful in treating untreated surface water containing high loads Of Suspended solids (33 mg/L). No problems have been observed with clogging of the resin bed during operation. NOM was Successfully removed (60%) using anion FIX during 1 month without regeneration. Calcium and magnesium were also successfully removed using cation FIX during the first day of operation. A significant difference in UF fouling was found after treatment of untreated surface water with cation FIX. Reversible fouling increased after cation FIX treatment, it was hypothesized that this was due to more open NOM fouling layers on the UF membrane. Irreversible fouling decreased after cation FIX treatment, it was hypothesized that this was due to less calcium-NOM complex formation.

引用

页码：334 / 341

页数：8

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