Siemens Water Technologies Pte. Ltd.

Evoqua Water Technologies Pte. Ltd.

U.S. Filter Wastewater Group, Inc.

Edward John Jordan

Wenjun Liu

Fufang Zha

George W Smith

Joseph Edward Zuback

James E Augustyn

Marc E Roehl

Matthew Kuzma

Paul M Gallagher

Robert Elefritz

A hybrid method and system of treating wastewater with reduced energy usage is disclosed. The treatment system has a sorption system, an anaerobic digester that digests or converts at least a portion of the solids or sludge from the sorption system, and an aerobic treatment tank that partially reduces oxygen demand of a portion of the sludge from the sorption tank.

Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods

A hybrid method and system of treating wastewater with reduced energy usage is disclosed. The treatment system has a sorption system and an anaerobic digester that digests or converts at least a portion of the solids or sludge from the sorption system.

A method and system of treating wastewater is disclosed. The treatment system has a nitrification-denitrification system comprising a sorption system, a biofilm system, and an anaerobic digester that digests or converts at least a portion of the solids or sludge from the sorption system and biofilm system.

Methods and systems for treating wastewater

A process for treating waste water to remove phosphorous and nitrogen in a treatment system including an anaerobic zone () containing an anaerobic mixed liquor having organisms which release phosphorous into the anaerobic mixed liquor; an anoxic zone () containing an anoxic mixed liquor having organisms which uptake phosphorous and denitrify the anoxic mixed liquor and an aerobic zone () containing an aerobic mixed liquor having organisms which uptake phosphorous and nitrify the aerobic mixed liquor; the process including the steps of providing wastewater to be treated into the anaerobic zone () and communicating anaerobic mixed liquor from the anaerobic zone () to the anoxic zone (). The anoxic mixed liquor is then communicated from the anoxic zone () to the anaerobic zone () and the anoxic mixed liquor from the anoxic zone () to the amble zone (). The aerobic mixed liquor is applied to a feed side of a membrane filter () to produce a treated effluent from a filtrate side of the membrane filter (). Oxygen-containing gas bubbles is flowed past the feed side of the membrane filter () to remove accumulated solids. At least some of the material rejected by the membrane filter () is communicated to a degassing device () to remove some or all of any dissolved oxygen contained in the rejected material and the degassed material is communicated to the anoxic zone ().

Biological phosphorus removal

This invention is directed to a wastewater treatment system having a fluidizable media carrying anoxic bacteria in a first treatment zone and a filter membrane positioned in a second treatment zone. A wastewater is contacted with the fluidizable media and further contacted with air and a filter membrane.

Method for treating wastewater

The invention relates to a membrane bioreactor process combined with an advanced biological sludge digestion process that provides significant improvements in sludge digestion by reducing the costs and resources required for disposing of digested sludge. The offline treatment vessel is used to solubilize the organic material by operating in a very low oxygen environment. Digested process fluid is transferred back to the membrane bioreactor. The processes and apparatus substantially reduce the production of waste sludge.

Filtration method and apparatus

Wastewater treatment system

A method of controlling the operating parameters of a membrane bioreactor system, the method including the steps of determining a control algorithm based on the relationship between the value of a parameter of the influent provided to the membrane bioreactor system and an optimal performance measurement parameter of the system and controlling one or more operating parameters of the membrane bioreactor system using the determined control algorithm.

Dynamic control of membrane bioreactor system

A wastewater treatment system for treating wastewater by processes which include aeration. The system includes an influent conduit for delivery of wastewater to be processed and a treatment tank for processing of the wastewater. Also included is an air conduit for providing compressed air for aeration of the wastewater and a particle size regulation device disposed between the conduit and the tank, wherein the particle size regulation device regulates a size of particles present in the wastewater to provide particle size regulated wastewater. The system also includes at least one aeration jet having a nozzle diameter sized to allow the particle size regulated wastewater to pass through the nozzle.

Growing community of inventors

Lenexa, KS, United States of America

Edward John Jordan