Harvesting and Dewatering Algae Using a Two-Stage Process
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United States of America Patent
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Issued Date -
Sep 5, 2013
app pub date -
Apr 17, 2013
filing date -
Jan 30, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention is generally directed to an apparatus for harvesting algae using a two-stage approach. The two-stage approach includes a flocculation stage and a dewatering stage. The flocculation stage is implemented within a first-stage flocculation tank in which algae suspended within a growth medium is flocculated. The flocculated algae is then fed to a second-stage flotation tank in which electrodes are used to produce hydrogen and oxygen bubbles which attach to the flocculated algae causing the flocculated algae to float to the surface. The mat of floating algae can then be skimmed off the surface of the growth medium.
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