Details of Grant 

EPSRC Reference:	GR/N18918/01
Title:	ELECTRICALLY ENHANCED DELIQUORING & WASHING OF FILTER CAKES
Principal Investigator:	Wakeman, Professor R
Other Investigators:	Tableton, Dr E Tarleton, Dr E
Researcher Co-Investigators:
Project Partners:
Department:	Chemical Engineering
Organisation:	Loughborough University
Scheme:	Standard Research (Pre-FEC)
Starts:	01 October 2000	Ends:	30 September 2003	Value (£):	216,766
EPSRC Research Topic Classifications:	Separation Processes
EPSRC Industrial Sector Classifications:	Chemicals No relevance to Underpinning Sectors
Related Grants:
Panel History:
Summary on Grant Application Form
The removal of pollutants and unwanted liquors from finer particle filter cakes is often problematical and leads to prolonged processing times, high cake moistures, poor solute removal and the excessive consumption of wash liquor. The research proposes the use of electric fields to enhance the removal of -hese liquids and contaminants by electrodeliquoring and electrowashing; the two processes being electrically augmented variants of mechanical expression and displacement washing respectively.purpose built automated apparatus will be used in experiments where an electric field is applied over a filter cake. The experiments will quantify the effects of electric fields on liquor and solute removal rates and will differentiate the individual enhancements of mass transfer (i.e. electrowashing) and electroosmotic flow (i.e. electrodeliquoring). Influences of process conditions (e.g. cake thickness, pressure, electrical power) and cake properties (e.g. size, particle porosity, charge and type of ionic species, zeta-potential) will be assessed by measurements to identify limiting conditions and the impact oon process scale operation. Models for electrodeliquoring and electrowashing will be developed to reflect the experimental data. These will account for the electroosmotic enhancement of flows (including hydraulic advection and dispersion) and will be developed from deiliquoring and washing models attributable to the applicants.
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Organisation Website:	http://www.lboro.ac.uk