The efficiency of FCF-SC in reducing the surfactant-MBAS
(anionic) was about 40%, decreasing the feed concentration of
21 mg L−1, to about 12 mg L−1. Physical carryover by bubbles;
adsorption/co-precipitation within the aerated flocs; oxidation
by chlorination may be responsible for the surfactant molecule
destruction and/or immobilization by adsorption.