Figure 2
The steady-state median floc size ( d 50 μm) for the systems containing 250 mg L -1 montmorillonite and varying quantities (0 – 20 mg L -1 in terms of total organic carbon (TOC)) of organic matter (either xanthan gum (XG), humic acid (HA) or guar gum (GG)) was determined at four discrete salinity values (i.e., S = 0, 3.5, 7 and 17.5 psu).