Patents Assigned to EV Environmental, Inc.
  • Apparatus and treatment for wastewater
    Patent number: 5624562
    Abstract: The present invention relates to the pretreatment and treatment of biodegradable wastewater utilizing a series of treatment modes within a single variable depth reactor apparatus to biologically reduce the biochemical oxygen and chemical oxygen demand in domestic and industrial wastewater.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: April 29, 1997
    Assignee: EV Environmental, Inc.
    Inventor: Dan Scroggins