electrodecantation

electrodecantation

[i¦lek·trō‚dē‚kan′tā·shən]
(physical chemistry)
A modification of electrodialysis in which a cell is divided into three sections by two membranes and electrodes are placed in the end sections; colloidal matter is concentrated at the sides and bottom of the middle section, and the liquid that floats to the top is drawn off.