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US 7,442,304 B1Granted
In-situ ballast water treatment method
AssigneeSea Knight Corporation
InventorsClaude R. Thompson, William M. Lechler, Neil F. Marshall
Life of this patent
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Abstract
A method and system for ballast water treatment are provided. Living organisms are added into a vessel's ballast water tank (e.g., via an existing vent) to consume (i) oxygen dissolved in ballast water contained in the ballast water tank, and (ii) food sources for selected organisms contained in the ballast water.
Claims9
A method of ballast water treatment, comprising the steps of:
- adding living organisms into a vessel's ballast water tank to consume (i) oxygen dissolved in ballast water contained in the ballast water tank, and (ii) food sources for selected organisms contained in the ballast water;
- and
- applying a vacuum directly to an existing vent of the ballast water tank during the vessel's voyage, said vacuum being in a range of approximately −2 to −4 pounds per square inch.
Dependencies are inferred from the claim text.