ultrapure water production Articles
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River water is filtered for use in an electronic disk manufacturing facility in Hokkaido, Japan
New Logic International installed its Vibratory Shear Enhanced Processing (VSEP) Phase I system in July, 1997, and the Phase II system in August 1998 at a major international electronic disk manufacturing facility at Hokkaido Island located in Northern Japan. The VSEP is used for treatment of river water for ultrapure water production at this facility. The VSEP system uses an ultrafiltration ...
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Samyang Corporation, Expansion of global market by launching RO membrane and EDI
- Following ion exchange resin, RO membrane, and EDI have been released.- Establishing three key materials for water treatme- Becoming a comprehensive solution provider through newly launched products and a new dedicated organization, “Water Solutions PU (Performance Unit)”. Samyang Corporation, Korea's first company to develop ion exchange resin and a leader in the field of industrial water ...
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Operating Electrodeionization in a High-Silica Feedwater Environment
High silica feedwaters pose two challenges for ultrapure water membrane systems. On the front end, silica can scale the RO membranes, limiting use of some feedwaters and high water recovery. On the back end, silica can scale the IX resins in the electrodeionization (EDI). It is also a challenge to attain the very low ppb levels of silica in the ultrapure product water required by power and ...
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How Does Electrodeionization Compare to Reverse Osmosis?
Reverse osmosis is a water treatment process that is still the principal method of removing impurities from water. But some applications such as pharmaceuticals require an even higher level of purity. In most situations, electrodeionization systems can provide higher ultrapure chemical free water production. Reverse osmosis (RO) and electrodeionization (EDI) are complimentary but distinctly ...
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Electrodeionization - Ultrapure water
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 are installed at the exit of permeate coming from reverse ...
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Electrodeionization is a Continuous Process
Unlike mixed bed DI, electrodeionization (EDI) is continuous. Because electrodeionization is continuous there are no spikes in quality as when mixed beds are changed for batch regeneration. An additional benefit for EDI users is that there is no concern about the timing of changing batches, or planning for the eventual breakthrough of ions in the bed like silica, sodium, or general conductivity. ...
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EDI: Complementary Technology to Portable Exchange DI (PEDI)
EDI for Dealers is now a reality. Ultrapure water is a concern for water treatment companies who service critical applications such as Laboratory and Pharmaceutical. You must apply the right technology for your customers’ needs, while remaining competitive and realizing a reasonable profit. EDI Value Proposition: PEDI servicing can be expensive and can keep customers from contracting with ...
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FCE is Important for EDI Electrodeionization System Performance
EDI, Why FCE is Important for Electrodeionization System Performance The performance of electrodeionization (EDI) systems depends upon several key feed water constituents. When these constituents are considered together a Feed Conductivity Equivalent, or FCE may be determined. For an electrodeionization system to operate properly, the feed water must be high-quality Reverse Osmosis (RO) ...
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A high-performance electropositive filter
Reverse osmosis (RO) membranes have become the industry standard for purification of any feed water source. They are used extensively for producing high-purity, low-conductivity process water. They are also used for producing ultrapure water from fresh water because RO is presumed to be the ultimate purifier. Because RO filters are readily fouled by colloidal particles and biofilms, some method ...
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PHILOS UF Membrane Leads the Way in Sustainable Wastewater Treatment for Semiconductor Manufacturing
In the world of technology and semiconductor manufacturing, efficiency and sustainability are critical factors that drive innovation. With the rise of demand for electronic devices, the production of wafers, a semiconductor material, has been increasing significantly. However, the process generates a considerable amount of wastewater, which can pose a challenge for companies to find an efficient ...
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High performance RO membranes for desalination and wastewater reclamation and their operation results
Reverse osmosis (RO) membrane is one of the most powerful tools for solving the global water crisis, and is used in a variety of water treatment scenes such as drinking water purification, waste-water treatment, boiler feed water production, ultra pure water production for semiconductor industry, etc. The desired performance of RO membrane varies according to quality of feed water being treated, ...
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New Report Cites Costs of Not Addressing Water Risks Promptly
3,000 companies were surveyed to determine the difference between estimated risks and the costs of responding The nonprofit Carbon Disclosure Project (CDP) recently released a report about water risks after surveying 3,000 companies. The CDP found a dramatic difference between the companies’ estimated water risks and how much they estimated it would cost to respond to them. According to ...
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High performance RO membranes for desalination and wastewater reclamation and their operation results
Reverse osmosis (RO) membrane is one of the most powerful tools for solving the global water crisis, and is used in a variety of water treatment scenes such as drinking water purification, waste-water treatment, boiler feed water production, ultra pure water production for semiconductor industry, etc. The desired performance of RO membrane varies according to quality of feed water being treated, ...
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Ultrapure Water for Determination of Toxic Elements in Environmental Analyses
Abstract In this paper the importance of reagent water quality for toxic element environmental analyses is discussed, and the suitability of fresh ultrapure water produced using Merck water purification systems for ICP-OES and ICP-MS trace element analyses in environmental laboratories is demonstrated. Key words or phrases Trace elements, metals, toxic elements, ICP-MS, ICP-OES, contamination, ...
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Pushing Water Reuse to The Extremes
Large-scale water-reuse treatment plants have had a sustainable impact in populated areas where the volume of water to be treated and reused in a concentrated area makes them practical. Today, the flat-sheet membrane aerated biofilm reactor (MABR) technology that is delivering high-quality wastewater treatment to remote locations is poised to realize the promise of sustainable water reuse in ...
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