Fixed film bioprocess for removing carbon compounds in oil and gas drilling sludge
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United States of America Patent
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Jul 13, 2010
Grant Date -
Oct 16, 2008
app pub date -
Apr 3, 2008
filing date -
Apr 4, 2007
priority date (Note) -
Expired
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Abstract
A system for recycling drilling sludge is disclosed. The system has a treatment area and a salt-tolerant bio-reactor coupled to the treatment area. The bio-reactor has i) at least one bio-suspension element for supporting the growth of at least one type of biological microorganism within an enclosed flow zone; ii) an agitator for creating a flow of the drilling sludge through the enclosed flow zone at a flow rate; and iii) an aerator for providing a gas to the enclosed flow zone. The system also has a processor coupled to the agitator and configured to create at least a minimum self-cleaning drag force between drilling sludge passing through the enclosed flow zone and the combined at least one type of biological microorganism and the at least one bio-suspension element. A related method and bio-reactor are also disclosed.
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