V. Correia et Sj. Judd, ASSESSMENT OF THE COLOR REMOVAL CAPABILITY OF LOW-PRESSURE DYNAMICALLY FORMED MEMBRANES, Proceedings of the Institution of Mechanical Engineers. Part E, Journal of process mechanical engineering, 211(E1), 1997, pp. 1-10
Experimental work undertaken to explore the aptness of low-pressure dy
namically formed membranes (DFMs) for colour removal from dyewastes is
reported. Hydrous zirconium oxide-polyacrylic acid (Zr-PAA) membranes
have been dynamically formed on a composite, ceramic-metal mesh micro
filtration (MF) membrane at pressures and cross-flow velocities below
1.5 MPa and 3 m/s respectively. Resulting membranes were assessed on f
eed steams containing inorganic salts and commercial direct, acid and
basic dyes. Membrane performance, expressed as permeate flux and solut
e rejection, was quantified under various feedwater conditions of salt
and dye concentration, dye type and feed temperature.