Method of treating a marine object

Details Method of treating a marine object Method of treating a marine object

2008-04-18

2009-11-17

Barry, Chester T (Department: 1797)

Liquid purification or separation

Processes

Treatment by living organism

C210S242200

Reexamination Certificate

active

07618536

ABSTRACT:
A method for eliminating alien species and undesirable organisms from ballast water of a marine vessel. Ballast water (204) is injected into a container (202). An organic substance is added to the ballast water. Heterotrophic organisms (219) in the ballast water reproduce and consume the organic substance (218). The heterotrophic organisms substantially reduce the oxygen level in the ballast water compared to the oxygen level of untreated ballast water. The alien species and undesirable organisms die due to lack of oxygen.

REFERENCES:
patent: 5770188 (1998-06-01), Hamade et al.
patent: 2006/0151386 (2006-07-01), De Blois
patent: 0869159 (1998-10-01), None
patent: 0077102 (2000-12-01), None
patent: 0194479 (2001-12-01), None

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