Patents Assigned to City of Albuquerque
  • Manhole biofilter
    Patent number: 5846274
    Abstract: A biofilter for use in a manhole of a sanitary sewer system which allows sewer gases to escape from the system driven by the pressure differential between the aboveground atmosphere and the underground pressure. Sewer gases are chemically changed by their passage through the compost filter media, and odors associated with the gases are thereby eliminated.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: December 8, 1998
    Assignee: City of Albuquerque
    Inventor: Sherisse R. Smelser