Open AccessELECTROKINETIC DENSIFICATION OF COAL FINES IN WASTE PONDS
Author(s) -
E. James Davis
Publication year - 1999
Language(s) - English
Resource type - Reports
DOI - 10.2172/766750
Subject(s) - electrokinetic phenomena , flocculation , coal , suspension (topology) , environmental science , waste management , colloid , colloidal particle , coal mining , environmental engineering , materials science , chemical engineering , engineering , nanotechnology , mathematics , homotopy , pure mathematics
The objective of this research was to demonstrate that electrokinetics can be used to remove colloidal coal and mineral particles from coal-washing ponds and lakes without the addition of chemical additives such as salts and polymeric flocculants. The specific objectives were: Design and develop a scaleable electrophoresis apparatus to clarify suspensions of colloidal coal and clay particles; Demonstrate the separation process using polluted waste water from the coal-washing facilities at the coal-fired power plants in Centralia, WA; Develop a mathematical model of the process to predict the rate of clarification and the suspension electrical properties needed for scale up