Patents Assigned to Emcon, Inc.
  • Patent number: 5484279
    Abstract: A method and apparatus for the on-site disposal of landfill gas (LFG) condensate is disclosed. Any contaminants in the condensate are incinerated in an LFG flare. The LFG condensate is first pressurized and then injected, in an atomized state, into a combustion zone of the LFG flare. The LFG condensate is pumped from a plurality of sumps to an accumulator. A pump controlled by a liquid level sensor cycles on and off in response to the level of condensate in the accumulator. The pressurized condensate is delivered to a nozzle via a conduit system. The pressurized condensate is atomized by the nozzle and the resulting mist is directed into the combustion zone where it is vaporized. Any contaminants in the condensate are incinerated along with similar contaminants in the LFG.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: January 16, 1996
    Assignee: Emcon, Inc.
    Inventor: David Vonasek
  • Patent number: 5372621
    Abstract: A condensate trap for use in a Vapor Extraction System (VES), which uses negative pressure to extract contaminated vapors from soil, is disclosed. The trap includes a vapor tight vessel, part of which acts as a condensate reservoir. One or more mist eliminators, such as an impingement type condensate collector, are contained within the vessel. The vessel includes a vapor inlet and a vapor outlet as well as a condensate outlet. The condensate outlet is controlled by a swing check valve. The valve remains closed until there is sufficient condensate in the reservoir to push it open. After a predetermined amount of condensate drains out, the check valve closes.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: December 13, 1994
    Assignee: Emcon, Inc.
    Inventors: Michael D. Staton, Peter Seybert, Angela Cote