Patents Assigned to Environmental Vision 21, Ltd.
  • Patent number: 6764600
    Abstract: The present invention relates to a lagoon partitioned for hog waste treatment, and the method of waste treatment in said lagoon. More particularly, the present invention relates to a lagoon for hog waste, which is partitioned into zones separated by walls, comprising a first zone for storing and settling hog waste, a second zone for carrying out sequence batch reaction onto the supernatant from the first zone, a third zone for storing processed liquid materials from the second zone, and a fourth zone for fermenting the solid materials from the first and second zones, wherein a passageway with a pump is installed between the respective two zones for transference of solid and liquid waste materials.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: July 20, 2004
    Assignee: Environmental Vision 21, Ltd.
    Inventors: Myung Chul Cha, Jihyun Choi