Other

Houdaille Industries, Inc.

Clevepak Corporation

Mikkel G Mandt

Wastewater treatment systems which utilize an interacting surge anoxic mix zone for facilitating nitrogen removal and an aerobic sequential batch reaction, clarification and decantation zone for facilitating aeration for BOD removal and nitrate production for the surge anoxic mix zone. Sludge reduction may also be accomplished by anaerobic recycle.

Surge anoxic mix sequencing batch reactor systems

Wastewater treatment systems which utilize an interacting surge anoxic mix zone for facilitating nitrogen removal and an aerobic sequential batch reaction, clarification and decantation zone for facilitating aeration for BOD removal and nitrate production for the surge anoxic mix zone.

Apparatus for jet aeration of wastewater which may be readily retrieved for cleaning or other servicing and replaced in service. Methods of placing the aeration apparatus in service are also provided.

Retrievable jet mixing systems

Methods and apparatus for decanting clarified waste water in a sequencing batch reactor or the like.

Sequencing batch reactor decanter systems

Methods and apparatus for subcyclonic grit separation under aeration conditions utilizing elevated wastewater hydraulic jet recirculation systems.

Subcyclonic jet recirculation grit removal system

Systems for flocculation processing in water purification treatment in which a first jet flash mixing field of relatively high specific energy requirement and turbulence intensity is provided for intimate mixture of the flocculant and influent water to produce a thoroughly mixed product stream having residual energy, and in which the product stream from the first mixing field is used as the motive stream to power a flocculation field of lower specific energy requirement and turbulence intensity.

Multi stage flocculation treatment system

Activated sludge treatment system for removal of pretreatment BOD and nitrogen values from waste water, utilizing a mixed liquor tank comprising a nitrate cracking channel zone, a denitrification channel zone and an aeration zone in specified relationship and adapted to provide specified operating conditions in the respective zones.

Nitrification-denitrification system

Methods of the activated sludge type for treating sewage utilizing specific mixing regimes and oxygen demand rates. The systems are particularly advantageous in utilization of relatively pure oxygen in a final stage treatment zone, and in which no more than 10% of the total oxygen requirement for all zones is required for high purity oxygen.

Multi-stage systems for waste water oxidation

Activated sludge waste water treatment systems utilizing influent and/or sludge return flow as pressurized gas-liquid contactor motive stream source and having improved energy efficiency. Staged flow control systems are also disclosed.

Jet aeration channel system

A method and apparatus for dissolution of comminuted organopolymeric materials such as water and waste water flocculant polymer, in which the polymer is educted into a series of ejector mixers and into a mixing zone.

Method for polymer dissolution

A rapid and efficient method for disinfection of waste liquid such as sewage effluent by means of a fluid disinfecting agent, (e.g. ozone or chlorine) in which the disinfecting agent and all of the waste liquid to be treated pass through a turbulent flow zone within a limited period of time. Also disclosed is specific apparatus for carrying out the method.

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Cedar Falls, IA, United States of America

Mikkel G Mandt