Evoqua Water Technologies Pte. Ltd.

Millipore Corporation

United States Filter Corporation

Siemens Industry, Inc.

Ionics, Inc.

IP Holding Company

Siemens Water Technologies Pte. Ltd.

U.S. Filter/ionpure, Inc.

Other

Siemens Water Technologies Holding Corp.

Gary C Ganzi

Frederick C Wilkins

Anil D Jha

Li-Shiang Liang

Anthony J Giuffrida

Evgeniya Freydina

Felice DiMascio

Jonathan H Wood

Gary V Zoccolante

Christopher Griffin

Christopher J Gallagher

Charles T Paul

Thomas William Beck

Fufang Zha

Joseph Edward Zuback

Joshua Griffis

Simon Paul Dukes

Michael J Shaw

George Y Gu

Aytac Sezgi

Reshma Madhusudan

Paul Beddoes

John W Arba

Paul T Rice

Kitty K Siu

Ramesh S Hegde

Darren Adrian Dale

Devendra Atnoor

Yoram Oren

Paul Springthorpe

Kenneth O'Donoghue

Water treatment systems including electrically-driven and pressure-driven separation apparatus configured to produce a first treated water suitable for use as irrigation water and a second treated water suitable for use as potable water from one of brackish water and saline water and methods of operation of same.

Treatment of saline water for agricultural and potable use

A water treatment system for producing potable water and water for irrigation from saline water, the system includes an electrodialysis apparatus including one or more monovalent selective membranes and having an inlet fluidly connectable to a source of water to be treated, a diluate outlet, and a concentrate outlet, a nanofiltration apparatus positioned downstream of the electrodialysis apparatus and having an inlet fluidly connectable to the diluate outlet of the electrodialysis apparatus, a permeate outlet, and a retentate outlet, and an electrolyzer in fluid communication with one of the concentrate outlet and the retentate outlet, and configured to generate a product stream including one or more of chlorine gas, hypochlorite ion, sodium hydroxide, sulfuric acid, hydrochloric acid, or sodium hypochlorite.

Treatment of saline water for agricultural and potable use and for generation of disinfectant solution

A method of providing water suitable for irrigation use includes feeding pre-treated water to an electrodialysis apparatus, treating the pre-treated water in the electrodialysis apparatus by selectively removing either one or both of monovalent anionic and monovalent cationic species from the pre-treated water while retaining either one or both of multivalent anionic and multivalent cationic species to produce a treated water stream having a lower ratio of monovalent ions to multivalent ions than the pre-treated water, and directing the treated water into an irrigation water distribution system.

Water treatment of sodic, high salinity, or high sodium waters for agricultural application

A low energy water treatment system and method is provided. The system has at least one electrodialysis device that produces partially treated water and a brine byproduct, a softener, and at least one electrodeionization device. The partially treated water stream can be softened by the softener to reduce the likelihood of scale formation and to reduce energy consumption in the electrodeionization device, which produces water having target properties. At least a portion of the energy used by the electrodeionization device can be generated by concentration differences between the brine and seawater streams introduced into compartments thereof. The brine stream can also be used to regenerate the softener.

Low energy system and method of desalinating seawater

Water treatment systems including electrically-driven and pressure-driven separation apparatus configured to produce a first treated water suitable for use as irrigation water and a second treated water suitable for use as potable water from brackish or saline water and methods of operation of same.

Method and system for water treatment

Water treatment systems including electrically-driven and pressure-driven separation apparatus configured to produce a first treated water suitable for use as irrigation water and a second treated water suitable for use as potable water from brackish water and methods of operation of same.

Water treatment systems including electrically-driven and pressure-driven separation apparatus configured to produce a first treated water suitable for use as irrigation water and a second treated water suitable for use as potable water from one of brackish water and seawater and methods of operation of same.

An electrically-driven separation apparatus can be utilized to desalinate seawater and/or brackish water to provide irrigation water having a desired sodium adsorption ratio (SAR).

Method and system for irrigation

A method and apparatus for purifying water are provided. A feed water such as seawater can be fed to a filter such as a microporous or nanofiltration membrane to produce a permeate that can, in turn, be fed to an electrodeionization system to produce fresh water.

Method and apparatus for desalination

An electrically-driven separation apparatus can be used with a pressure-driven separation apparatus to provide potable water having a desired total dissolved solids (TDS).

Method and system for providing potable water

Growing community of inventors

Lexington, MA, United States of America

Gary C Ganzi