Fig. 1. Flux decline curves of TFC-control membrane and TFC-Ca membrane under different organic matters for (a) BSA was used as organic foulant, (b) HA used as organic foulant and (c) SA used as organic foulant. The concentration of organic foulant was 200 mg L−1 in the feed solution containing 50 mM NaCl and 1.0 mM Ca2+.
