Journal
DRYING TECHNOLOGY
Volume 19, Issue 9, Pages 2363-2377Publisher
TAYLOR & FRANCIS INC
DOI: 10.1081/DRT-100107504
Keywords
dewatering; electroosmosis; filter cycle; filter-press; silica suspension
Categories
Ask authors/readers for more resources
This paper describes the role of pressurized electroosmotic dewatering (EOD) in a filter cycle. A laboratory-scale filter-press was used to filter a highly conductive silica suspension under constant pressure, followed by washing and mechanical precompression of the filter cake and finally by pressurized EOD at constant electric current. The influence of filter cycle parameters (filtration and washing pressure and duration, mechanical pressure, and electric field intensity) on the final cake dryness and energy consumption was studied. Electrodes of different materials, forms, and surfaces were used. The optimal conditions of each filter cycle operation were found to minimize the energy consumption during EOD and maximize the cake dryness. With mechanical pressure and electric field intensity increasing, the total energy consumption increased, but the specific energy consumption (per kg of expressed water) decreased, and the final filter cake was dryer. The pressurized EOD also used less energy than thermal drying.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Recommended
No Data Available