“…The performance of the organophilic clays is even better than or comparable to other methods or adsorbents types. For example, the efficiency cited in literature is 90, 90, 93, 78, 86.58, and 93.54%, respectively, for catalytic oxidation, 72 biological techniques, 73 membranes, 74 wool, 75 zeolite, 38 and activated coal. 6 To determine the adsorption equilibrium time, the oil absorption percentages were studied in function of contact time, which varied from 15 to 240 min, using 1.0 g of adsorbent and oil concentration in the saltwater of 50 ppm.…”