Liquid purification or separation – Processes – Separating
Patent
1990-10-26
1992-06-16
Dawson, Robert A.
Liquid purification or separation
Processes
Separating
210767, 210791, 210807, 210263, 210269, 210274, 210275, 210277, 210279, 210285, B01D 2400, B01D 2446
Patent
active
051222876
ABSTRACT:
The filtration system provides a long horizontal flow path through buoyant filter media. The filter media is contained in a vessel and the relationship between the water level in the vessel and the amount of filter media is such that the media extends completely across the horizontal flow path of the water during the filtration mode of operation. The system is configured so that the buoyant media volume expands during a cleansing mode of operation.
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Dawson Robert A.
Reifsnyder David
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