Patents Assigned to Ocean Arks International, Inc.
  • Ecological fluidized bed system
    Patent number: 5618413
    Abstract: An ecological fluidized bed system and method for the processing of polluted water to provide treated water. The system comprises a fluidized bed container containing a layer of coarse media with a layer of fine media above it which has a buoyancy substantially similar to the polluted water, and particularly pumice rock having a high surface to volume ratio, an inlet to introduce water into the container, and an outlet to withdraw treated water, and either a mechanical pump in an anaerobic operation or an airlift pump in an aerobic operation. The system includes an ecosystem such as microorganisms, benthic animals, and higher aquatic plants for the purification of the polluted water within the container, and a pump means to provide for the rapid recirculation of the polluted water within the container with the fine media as a fluidized bed, with a recirculation rate up to a thousand times the flow-through water rate, thereby providing for the rapid, efficient and effective purification of the polluted water.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: April 8, 1997
    Assignee: Ocean Arks International, Inc.
    Inventors: John H. Todd, James M. Shaw
  • Ecological fluidized bed method for the treatment of polluted water
    Patent number: 5486291
    Abstract: An ecological fluidized bed system and method for the processing of polluted water to provide treated water. The system comprises a fluidized bed container containing a layer of coarse media with a layer of fine media above it which has a buoyancy substantially similar to the polluted water, and particularly pumice rock having a high surface to volume ratio, an inlet to introduce water into the container, and an outlet to withdraw treated water, and either a mechanical pump in an anaerobic operation or an airlift pump in an aerobic operation. The system includes an ecosystem such as microorganisms, benthic animals, and higher aquatic plants for the purification of the polluted water within the container, and a pump means to provide for the rapid recirculation of the polluted water within the container with the fine media as a fluidized bed, with a recirculation rate up to a thousand times the flow-through water rate, thereby providing for the rapid, efficient and effective purification of the polluted water.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: January 23, 1996
    Assignee: Ocean Arks International, Inc.
    Inventors: John H. Todd, James M. Shaw