Patents Assigned to North American Wetland Engineering, Inc.
  • System and method for removing pollutants from water
    Patent number: 6652743
    Abstract: A system and method for removing pollutants from wastewater. The system includes a constructed wetland cell in which the filtered wastewater is flowed generally vertically. The flow of wastewater is unsaturated through the wetland cell to aerate the wastewater. The wastewater may be further aerated by a blower or injector. The treated wastewater from the wetland cell is blended with untreated wastewater, then either recirculated through the wetland cell or conveyed to a disposal system.
    Type: Grant
    Filed: January 26, 2002
    Date of Patent: November 25, 2003
    Assignee: North American Wetland Engineering, Inc.
    Inventors: Scott D. Wallace, Paul E. Lambrecht
  • Absorption field reclamation and maintenance system
    Patent number: 6576130
    Abstract: A wastewater absorption field reclamation and maintenance system, wherein effluent (wastewater) is oxygenated such that BOD is not reduced in the effluent, the oxygenated effluent being delivered to the absorption field. As the oxygenated effluent flows to the absorption field, the enhanced oxygen enables aerobic decomposition of organic matter which has reduced the infiltrative capacity of the absorption field.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: June 10, 2003
    Assignee: North American Wetland Engineering, Inc.
    Inventor: Scott D. Wallace
  • Method for removing pollutants from water
    Patent number: 6406627
    Abstract: A system for removing pollution from water, utilizing a subsurface constructed wetland system using forced bed aeration and variable water levels, to promote greater root depth and better root structure of the wetland vegetation, and to establish staged anaerobic and aerobic zones within the system.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: June 18, 2002
    Assignee: North American Wetland Engineering, Inc.
    Inventor: Scott D. Wallace