S. Pondstabodee et al., CLEANUP OF OILY WASTE-WATER BY FROTH FLOTATION - EFFECT OF MICROEMULSION FORMATION, Separation science and technology, 33(4), 1998, pp. 591-609
This study showed that the efficiency of removal of sigma-dichlorobenz
ene from water by batch froth flotation increases as changes in salini
ty cause the system to vary from a Winsor Type I microemulsion to a Wi
nsor Type III microemulsion. The cationic surfactant studied is more e
ffective than either the monosulfate or the disulfonate anionic surfac
tants studied. The oil flotation efficiency increases as the initial s
urfactant concentration increases, as the salinity increases (causing
a Winsor Type I to III transition for these systems), and as the oil/w
ater ratio decreases.