Patents Assigned to Tri-Bio, Inc.
  • Submerged biological wastewater treatment system
    Patent number: 4940540
    Abstract: This invention relates to a process and reactor system suitable for biological treatment of wastewaters or for other applications wherein effective and intimate contact between biological populations attached to a fixed surface and liquid born chemicals and gaseous atmospheres is required. The reactor includes a sealed housing generally having a plurality of independent-vertical chambers, each open at the top and bottom and each filled with high surface-area packing and disposed annularly around a central-vertical chamber. The central vertical chamber is also open at the top and bottom, but free of packing. The bottom of the central chamber is in communication with the bottom of each of the independent-annular columns by means of a bottom-freeboard chamber. The top of the central-vertical chamber is also in communication with the top of each independent-vertical chamber by means of a top-freeboard chamber created by setting the liquid level in the reactor at a position above the top of all vertical chambers.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: July 10, 1990
    Assignee: Tri-Bio, Inc.
    Inventor: Curtis S. McDowell
  • Submerged biological wastewater treatment system
    Patent number: 4818404
    Abstract: This invention relates to a process and reactor system suitable for biological treatment of wastewaters or for other applications wherein effective and intimate contact between biological populations attached to a fixed surface and liquid born chemicals and gaseous atmospheres is required. The reactor includes a sealed housing generally having a plurality of independent-vertical chambers, each open at the top and bottom and each filled with high surface-area packing and disposed annularly around a central-vertical chamber. The central vertical chamber is also open at the top and bottom, but free of packing. The bottom of the central chamber is in communication with the bottom of each of the independent-annular columns by means of a bottom-freeboard chamber. The top of the central-vertical chamber is also in communication with the top of each independent-vertical chamber by means of a top-freeboard chamber created by setting the liquid level in the reactor at a position above the top of all vertical chambers.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: April 4, 1989
    Assignee: Tri-Bio, Inc.
    Inventor: Curtis S. McDowell