A simple experimental setup for the measurement of electro-osmotic flow through porous media by direct weighing is described. Potential instead of current measurement allows the determination of zeta potential, even in the presence of significant surface conduction. Flow equations valid for porous m
Electro-osmosis at microporous membranes and the determination of zeta-potential
β Scribed by W.Richard Bowen; Robert A Clark
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 524 KB
- Volume
- 97
- Category
- Article
- ISSN
- 0021-9797
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
We report computer simulations of semi-permeable membranes used to study electrolyte solutions undergoing osmosis, reverse osmosis, and electro-osmosis. The semipermeable roembrane, which is atomistic in nature, has been modeled using a novel technique developed by us rec~tly. Our results show a rat
The surface charge densities acquired by intrinsically neutral and charged microporous membranes when bathed by diluted electrolytic solutions are studied. Concretely we deal here with \(\mathrm{LiCl}\) solutions and two nylon neutral microporous membranes and two very similar but charged membranes
The zeta potential is an important and reliable indicator of the surface charge of membranes, and knowledge of it is essential for the design and operation of membrane processes. The zeta potential cannot be measured directly, but must be deduced from experiments by means of a model. The possibility
The yield stress-DLVO force relationship is obeyed by Ξ±-Al 2 O 3 and alumina-coated TiO 2 dispersions with adsorbed polyacrylate only if the yield stress and its corresponding zeta potential data were collected in the positively charged region. In this region, the underlying surface positive charge