deionized water Articles

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RO brine treatment and recovery by biological activated carbon and capacitive deionization process

by IWA Publishing  (Jan. 1, 2011)

The generation of brine solutions from dense membrane (reverse osmosis, RO or nanofiltration, NF) water reclamation systems has been increasing worldwide, and the lack of cost effective disposal options is becoming a critical water resources management issue. In Singapore, NEWater is the product of a multiple barrier water reclamation process from ...

Current Issues -- Novel, Practical Deionization Technology

by American Water Works Association (AWWA)  (Feb. 1, 2006)

Rapid economic and population growth in the developing world is creating wealth and increasing expectations while simultaneously straining water supply and quality. This situation will reach crisis proportions during the next several decades, and innovative water treatment technologies will be required to meet the challenge. Electrically ...

The Desel System – Capacitive Deionization for The Removal of Ions From Water

by Water Environment Federation (WEF)  (May 7, 2007)

Capacitive deionization (CDI) represents a new approach to the treatment of a variety of water/wastewater streams contaminated with inorganic compounds. ENPAR Technologies Inc. of Canada has developed its DesEL System, which combines high water recoveries with high ion removal efficiencies. The system operates on the principle of capacitive ...

Desalination of oil sands process-affected water and basal depressurization water in Fort McMurray, Alberta, Canada: application of electrodialysis

by IWA Publishing  (Dec. 19, 2013)

The high content of inorganic species in water used to extract bitumen from the Alberta oil sands and in the groundwater below the oil sands is an increasing environmental concern. These water matrices require treatment before they can be reused or safely discharged. Desalination of the oil sands process-affected water (OSPW) and groundwater, or ...

Electrodeionization - Ultrapure water

by SIMPEC Srl Societa Implanti Ecologici  (Sep. 29, 2011)

Continuous Electrodeionization Process The continuous electrodeionization process (CEDI),  is a system that uses ion exchange resins and electricity  for the production of ultrapure deionized water without chemical processes and without production stops. SIMPEC uses modular systems for the electrodeionization processes. The CEDI modules ...

High Purity Boiler Water Production Using Municipal Wastewater at a Combined Cycle Gas-Fired Generating Station

by Eco-Tec Inc.  (Apr. 17, 2013)

The recovery of wastewater for industrial uses presents many challenges for the design and operation of water treatment equipment. Since the term wastewater can be applied to a wide range of water sources from municipal sewage to storm runoff to industrial discharge water, the water characteristics may have great variability. As such, the ...

Case Study - Water Resuse/Recycle

by Applied Water Solutions, Inc.  (Mar. 17, 2010)

A leading electronics company faced increasing water costs of both influent and effluent. They contracted Applied Water Solutions for a pilot study using some of the most advanced methods of water purification on effluent from a clean out of place (COP) system. The pilot provided proof of principle of the selected process to recycle some of the DI ...

Virus removal efficiency of Cambodian ceramic pot water purifiers

by IWA Publishing  (Jun. 1, 2011)

Virus removal efficiency is described for three types of silver-impregnated, ceramic water filters (CWFs) produced in Cambodia. The tests were completed using freshly scrubbed filters and de-ionized (DI) water as an evaluation of the removal efficiency of the virus in isolation with no other interacting water quality variables. Removal ...

Water purification system for high risk biohazard laboratories: water quality and serviceability without comprise

by Evoqua Water Technologies  (Mar. 14, 2011)

Challenge A Biocontainment Level-4 laboratory is designed to work with microorganisms such as Ebola, Marburg and Congo-Crimean hemorrhagic fever viruses that pose serious health threats, making entrance to these facilities highly restricted. These labs also depend on a reliable source of high purity water for their day to day operations. However, ...

Water purification system for high risk biohazard laboratories: water quality and serviceability without compromise

by Evoqua Water Technologies  (Mar. 3, 2011)

A Biocontainment Level-4 laboratory is designed to work with microorganisms such as Ebola, Marburg and Congo-Crimean hemorrhagic fever viruses that pose serious health threats, making entrance to these facilities highly restricted. These labs also depend on a reliable source of high purity water for their day to day operations. However, with ...

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