1
Kenneth A Mikkelson, Lloyd W Johnson: Apparatus for the treatment of waste water. Aqua Aerobic Systems, Niro Scavone Haller & Niro, September 2, 2003: US06613222 (53 worldwide citation)

A process and apparatus for removing organic contaminants, nutrients and suspended solids from waste water. A three-phase cycle is used, consisting of a mix fill phase, a react fill phase and a react discharge phase. The process and apparatus eliminate the need for separate basins for anaerobic and ...


2
Lloyd W Johnson, Kenneth A Mikkelson, Dennis M Gleason, Edward W Lang: Multiple barrier biological treatment systems. Aqua Aerobic Systems, Niro Scavone Haller & Niro, March 21, 2006: US07014763 (46 worldwide citation)

The inventions separate the activated sludge, biochemical reaction stages of the batch treatment process of a sequencing batch reactor from the clarification and sedimentation stages by separating the locations where each process takes place. The separation may be accomplished in a variety of ways i ...


3
David Smith, Paul A Hughes, Lloyd W Johnson, Peter G Baumann: Processes and devices for water and wastewater treatment, including stationary cloth media filtration. Aqua Aerobic Systems, Niro Scavone Haller & Niro, February 22, 2005: US06858140 (16 worldwide citation)

The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.


4
Lloyd W Johnson: Weir assembly with movable baffle member. Aqua Aerobic Systems, Michael Best & Friedrich, February 1, 2000: US06019898 (7 worldwide citation)

A weir assembly is mountable in a wastewater treatment tank to control liquid flow from a first liquid receptacle into a second liquid receptacle. The weir assembly includes a weir member having an upright wall section mountable between the first liquid receptacle and the second liquid receptacle, a ...


5
Kenneth A Mikkelson, Lloyd W Johnson: Process and apparatus for treatment of waste water. Aqua Aerobic Systems, Niro Scavone Haller & Niro, April 5, 2005: US06875357 (4 worldwide citation)

A process for removing organic contaminants, nutrients and suspended solids from waste water. A three-phase cycle is used, consisting of a mix fill phase, a react fill phase and a react discharge phase. The process eliminates the need for separate basins for anaerobic and anoxic conditions, appropri ...


6
David Smith, Paul A Hughes, Lloyd W Johnson, Peter G Baumann: Processes for water and wastewater treatment, including stationary cloth media filtration. Aqua Aerobic Systems, Niro Haller & Niro, January 18, 2011: US07871527 (3 worldwide citation)

The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.


7
Peter G Baumann, Lloyd W Johnson, David Smith, Eugen O Bergmann: Method of filtration using cloth media and self-aligning backwash assembly. Aqua Aerobic Systems, Niro Haller & Niro, August 9, 2011: US07993532 (3 worldwide citation)

The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures forming effluent plenums for the filtered influent and self-aligning backwash assemblies for efficient periodic cleaning of the cloth filter media.


8
Peter G Baumann, Lloyd W Johnson, David Smith, Eugen O Bergmann: Stationary cloth media filtration and self-aligning backwash assembly. Aqua Aerobic Systems, Niro Haller & Niro, February 22, 2011: US07892421 (2 worldwide citation)

The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures forming effluent plenums for the filtered influent and self-aligning backwash assemblies for efficient periodic cleaning of the cloth filter media.


9
Peter G Baumann, Lloyd W Johnson, David Smith, Eugen O Bergmann: Stationary cloth media filtration. Aqua Aerobic Systems, Niro Haller & Niro, December 11, 2012: US08329045 (1 worldwide citation)

A method for filtering water or wastewater including the steps of filtering by gravity through a stationary cloth filter media supported in a treatment basin by a structure forming an effluent plenum, and cleaning the media by backwashing.


10
David Smith, Paul A Hughes, Lloyd W Johnson, Peter G Baumann: Processes and devices for water and wastewater treatment, including stationary cloth media filtration. Aqua Aerobic Systems, Niro Scavone Haller & Niro, July 1, 2004: US20040124158-A1 (1 worldwide citation)

The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.