Dewatering Fine Particle Waste Suspensions With Direct Current.
Ch Encyclopedia of Fluid Mec Gulf Publ Company Houston Texas, 1986 5:1171-1190
The phenomenon of electro-osmosis causes water to be drawn through a typical saturated soil by applying direct current between buried electrodes. This paper reviews work by the Bureau of Mines and others who have used electro-osmosis to dewater mining wastes. The theory of electro-osmosis is discussed along with dewatering efficiency and electrode reactions. The laboratory evaluation and results of several field applications by the Bureau of Mines are described for both metal mine wastes and coal sludge impoundments. Other commercial uses for the technology are noted, but evaluation of these applications was not attempted.
Ch. Encyclopedia of Fluid Mec., Gulf Publ. Company, Houston, Texas, V. 5, 1986, PP. 1171-1190