AN ELECTROKINETIC METHOD AND SYSTEM FOR DEWATERING SOFT SOILS, SLURRIES, COLLOIDAL SUSPENSIONS AND OTHER DEPOSITS

A method for in situ electrokinetic dewatering of fine-grained slurries, consisting of parallel electrode pairs suspended in the slurry deposit. Deployment consists of pulling the ends of spooled electrodes across the deposit. As they are unspooled, tethers are connected between adjacent electrode p...

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Bibliographic Details
Main Authors VANDERSLEEN, JOHN, ARMSTRONG, CLARE, SZABADOS, BARNA, SPENCER, STEVEN, HANNA, ED
Format Patent
LanguageEnglish
French
Published 01.08.2023
Subjects
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:A method for in situ electrokinetic dewatering of fine-grained slurries, consisting of parallel electrode pairs suspended in the slurry deposit. Deployment consists of pulling the ends of spooled electrodes across the deposit. As they are unspooled, tethers are connected between adjacent electrode pairs, enabling the horizontal spacing between electrodes to be controlled. The electrodes are suspended from the mudline by floats; by inflating or deflating the floats, the electrode positions are controlled. An insulated supplementary conductor is intermittently connected to the anode to decrease power attenuation and mitigate the risk of anode failure. Gas collars are used to trap and vent gas generated at the electrodes to prevent the dewatering process from stopping due to gas buildup in the slurry.
Bibliography:Application Number: CA20223147378