Magnetic separation and seeding to improve ballasted clarification of water
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United States of America Patent
Stats
-
Oct 26, 2010
Grant Date -
Mar 27, 2008
app pub date -
Sep 27, 2007
filing date -
Sep 27, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for removing fine particles and particulates from water. The process includes mixing a magnetic ballast, flocculant and water to form magnetic floc, and agitating the magnetic floc in a flocculation zone. A portion of the magnetic floc is collected on a magnetic collector in the flocculation zone. Another portion of the magnetic floc is directed downstream to a setting zone where the magnetic floc is settled. The settled magnetic floc is returned upstream of the settling zone where the returned magnetic floc is recombined with other magnetic floc in the flocculation zone. Ultimately, all, or substantially all, of the magnetic floc is removed by one or more magnetic collectors disposed upstream of the settling zone.
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