Topic
Electrodeionization
About: Electrodeionization is a research topic. Over the lifetime, 560 publications have been published within this topic receiving 9448 citations.
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Papers
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TL;DR: In this article, the principle of electrodialysis is described and its advantages and limitations in various applications are pointed out and their present and potential future applications are indicated, as well as the research needs for a sustainable growth of electrodesys and related processes.
1,113 citations
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TL;DR: In this article, the authors review aqueous chromium species, their toxicity and methods to remove Cr such as membrane filtration, chemical precipitation, ion exchange, adsorption electrocoagulation, electrochemical reduction, electrodialysis, electrodeionization, photocatalysis and nanotechnology.
Abstract: Chromium is a potentially toxic and carcinogenic metal originating from natural processes and anthropogenic activities such as the iron steel, electroplating and leather industries. Therefore, chromium should be removed from wastewater to avoid environmental pollution and to recycle chromium in the context of the future circular economy. Here we briefly review aqueous Cr species, their toxicity and methods to remove Cr such as membrane filtration, chemical precipitation, ion exchange, adsorption electrocoagulation, electrochemical reduction, electrodialysis, electrodeionization, photocatalysis and nanotechnology.
241 citations
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12 Aug 1997
TL;DR: In this paper, a process for treatment of water via membrane separation to remove hardness and non-hydroxide alkalinity by simultaneous removal in a weak acid cation exchange resin is described.
Abstract: A process for treatment of water via membrane separation to remove hardness and non-hydroxide alkalinity by simultaneous removal in a weak acid cation exchange resin. The process includes ionization of sparingly ionizable components, such as silica, by adjusting the pH up to about 10.5 or higher. Their separation by the membrane is significantly increased. The passage of boron, silica and TOC is reduced by a factor of ten or more. Recovery of 90 % or higher is achievable with most brackish feedwaters, while substantial reduction in cleaning frequency is simultaneously achieved. The apparatus used for the water treatment process includes reverse osmosis membrane(s) (30), mixed bed ion exchange unit (44, 46), micron filter (48), ultraviolet sterilization unit (49), decarbonation unit (20), and electrodeionization unit (150).
212 citations
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29 May 2001
TL;DR: In this paper, weakly ionizable species may be dissociated at different pH levels to facilitate removal from the fluid in an electrodeionization device, such as a water purifier.
Abstract: An electrodeionization apparatus and method for purifying a fluid. A fluid, such as water, can be purified by removing weakly ionizable species from the fluid. Weakly ionizable species may be dissociated at different pH levels to facilitate removal from the fluid in an electrodeionization device.
196 citations
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TL;DR: Electrostatic shielding zones made of electrode graphite powder were used as a new type of ionic and electronic current sinks because of the local elimination of the applied electric field, voltage and current within the zones.
185 citations