Showing papers by "Simon J. Judd published in 1997"
TL;DR: In this article, the effects of magnetic treatment on calcium carbonate scale formation were investigated and it was concluded that pH plays an important role in the mechanism by which magnetic fields affect scaling in flowing systems.
89 citations
TL;DR: In this paper, a test rig was constructed to investigate the effect of orthogonally applied magnetic fields on solutions of calcium carbonate and accompanying changes in scale deposits formed from solution.
64 citations
TL;DR: In this article, the effects of magnetic treatment on low temperature crystallisation of CaCO3 in a flow through system has been investigated and it was found that magnetic treatment was promoting enhanced precipitation (up to 10× more; depending upon experimental conditions) in prefilter units.
59 citations
01 Feb 1997
TL;DR: In this article, a composite, ceramic-metal mesh microfiltration (MF) membrane at pressures and cross-flow velocities below 1.5 MPa and 3 m/s was used for color removal from dyewastes.
Abstract: Experimental work undertaken to explore the aptness of low-pressure dynamically 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 microfiltration (MF) membrane at pressures and cross-flow velocities below 1.5 MPa and 3 m/s respectively. Resulting membranes were assessed on feed steams containing inorganic salts and commercial direct, acid and basic dyes. Membrane performance, expressed as permeate flux and solute rejection, was quantified under various feedwater conditions of salt and dye concentration, dye type and feed temperature.
2 citations