Patents Assigned to Envirocycle Pty. Ltd.
  • Composite bacteria support medium
    Patent number: 4908128
    Abstract: A composite support medium for bacteria in sewage treatment plants comprises two intimately associated quantities of media having disparate surface area to volume ratios; in particular a core body of tangled plastics wire-like filaments welded together and having an area to volume ratio of from 60 to 80 square meters per cubic meter partly wrapped in a mat of tangled plastics textile type filaments welded together having an area to volume ratio of from 350 to 450 square meters per cubic meter.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: March 13, 1990
    Assignee: Envirocycle Pty. Ltd.
    Inventor: Akira Chiba