--- title: How QUA's FEDI® Technology Stacks Up description: One of the products we offer as a solution to clients is our FEDI system. What makes FEDI unique? It goes above and beyond ordinary MB and EDI systems. Here is some more information on how QUA's FEDI technology stacks up. image: https://blog.aquatech.com/hubfs/fedi%201.jpg --- [Twitter](https://twitter.com/aquatechintl?lang=en) [Linkedin](https://www.linkedin.com/company/99139/) [Facebook](https://www.facebook.com/aquatechintl/) [YouTube](https://www.youtube.com/user/AquatechFilms) - Language / 語言 - [Chinese / 中文](http://aquatechzld.cn) - [English / 英語](https://aquatech.com) [![Aquatech](https://blog.aquatech.com/hubfs/Aquatech%20January2018%20Theme/Images/Weblogo.png)](https://aquatech.com/) [![Aquatech](https://blog.aquatech.com/hubfs/Aquatech%20January2018%20Theme/Images/Weblogo-100-2.jpg)](https://aquatech.com/) - Industries We Serve - [Power Generation](https://aquatech.com/industries/power/) - [Petrochemical & Refining](https://aquatech.com/industries/petrochemicals-refinement/) - [Upstream Oil and Gas](https://aquatech.com/industries/oil-and-gas/) - [Unconventional Oil & Gas](https://aquatech.com/industries/unconventional-gas/) - Mining & Metals - [Heavy Metals Mining](https://aquatech.com/industries/mining-metals/) - [Lithium Mining](https://www.aquatech.com/lithiummining/) - [Infrastructure](https://aquatech.com/industries/infrastructure/) - [Homecare & Beauty](https://www.aquatech.com/industries/homecare-beauty/) - [Food and Beverage](https://www.aquatech.com/industries/food-and-beverage/) - [Automotive](https://www.aquatech.com/industries/automotive/) - What We Do - [Desalination](https://aquatech.com/solutions/desalination/) - [Industrial Process Water](https://aquatech.com/solutions/industrial-process-water/) - [Wastewater Treatment](https://aquatech.com/solutions/wastewater-treatment/) - [Recycle & Reuse](https://aquatech.com/solutions/recycle-reuse/) - [Zero Liquid Discharge](https://aquatech.com/solutions/zero-liquid-discharge/) - [Energy Services](https://aquatech.com/energyservices/) - [Integrated Water Services](https://aquatech.com/solutions/integrated-water-services/) - [QUA Membrane Technology](http://quagroup.com/) - [Total Water Management](https://www.aquatech.com/solutions/total-water-management/) - Products - LoWatt™ Membrane Desalination Process - Packaged Products - [BioMOD™ Overview](https://www.aquatech.com/innovations/biomod/) - [BioMOD™ EGSB](https://www.aquatech.com/innovations/biomod/14407-2/) - [BioMOD™ MBBR](https://www.aquatech.com/innovations/biomod/biomod-mbbr/) - [BioMOD™ Anaerobic MBR](https://www.aquatech.com/innovations/biomod/biomod-anmbr/) - [BioMOD™ MBR](https://www.aquatech.com/innovations/biomod/14008-2/) - [BioMOD™ DAF](https://www.aquatech.com/innovations/biomod/biomod-daf/) - [R3MOD™ AVMD™ - Advanced Vacuum Membrane Distillation](https://www.aquatech.com/innovations/biomod/avmd-advanced-vacuum-membrane-distillation/) - [R3MOD™ ARRO™ - Advanced Recovery Reverse Osmosis](https://www.aquatech.com/innovations/biomod/arro/) - [R3MOD™ CeraSoft](https://www.aquatech.com/innovations/biomod/cerasoft/) - [Flue Gas Desulphurization](https://aquatech.com/applications/flue-gas-desulphurization/) - [Refinery Effluent](https://aquatech.com/applications/refinery-effluent/) - [Cooling Tower Blowdown](https://aquatech.com/applications/cooling-tower-blowdown/) - [Enhanced Oil Recovery and Produced Water](https://aquatech.com/applications/enhanced-oil-recovery-produced-water/) - [Coal to Chemicals/Liquid Waste](https://aquatech.com/applications/coal-chemicalsliquid-waste/) - [Contact](https://aquatech.com/contact/) [Twitter](https://twitter.com/aquatechintl?lang=en) [Linkedin](https://www.linkedin.com/company/99139/) [Facebook](https://www.facebook.com/aquatechintl/) [YouTube](https://www.youtube.com/user/AquatechFilms) - Language / 語言 - [Chinese / 中文](http://aquatechzld.cn) - [English / 英語](https://aquatech.com) # News & Press # How QUA's FEDI® Technology Stacks Up ![fedi 1.jpg](https://blog.aquatech.com/hs-fs/hubfs/fedi%201.jpg?width=848&name=fedi%201.jpg) The Electrodeionization (EDI) process, invented over 20 years ago, is a continuous, chemical-free method that removes ionized and ionizable impurities from the feed water. EDI eliminates the need to store and handle hazardous chemicals required for resin regeneration and the associated neutralization steps. [QUA’s](https://quagroup.com/) [Fractional Electrodeionization(FEDI®)](https://quagroup.com/fedi/) process is an advancement of EDI and was developed by taking into account the limitations of conventional EDI. The patented dual voltage process allows for a higher flexibility and tolerance to inlet water conditions, thus lowering the risk of scaling, and improving the plant’s design economics and reliability. [FEDI® Technology](https://quagroup.com/fedi/) - Making a good technology even better There are two types of ionic impurities removed in an EDI process; strongly ionized impurities (divalent ions such as Ca, Mg, SO4 and monovalent ions such as Na, Cl and HCO3) and weakly ionized impurities (such as CO2 B and SiO2). Both types of ionic impurities require a different driving force (current) for movement and separation. Strongly ionized impurities require less current, whereas weakly ionized impurities require more. Rather than applying one current to the entire module, the FEDI® process differentiates the treatment of weakly ionized and strongly ionized impurities by applying different currents and voltages in a two stage process. Below, is a chart outlining the advantage of QUA's [FEDI®](https://quagroup.com/fedi/) technology over ordinary MB and EDI technology. ![FEDI Mailer Oct 2017 twitter-1.jpg](https://blog.aquatech.com/hs-fs/hubfs/FEDI%20Mailer%20Oct%202017%20twitter-1.jpg?width=637&name=FEDI%20Mailer%20Oct%202017%20twitter-1.jpg) Fore more information on our FEDI® technology, click [here](https://quagroup.com/fedi/). Share this post - [Tweet](https://twitter.com/share) ### Author: [Marketing Department](https://blog.aquatech.com/author/marketing-department) [https://aquatech.com](https://aquatech.com) [PreviousA Comparison of ELG Compliance Options for Flue Scrubber Wastewater](https://blog.aquatech.com/a-comparison-of-elg-compliance-options-for-flue-scrubber-wastewater) [NextAquatech Awarded FGD ZLD Project in South Korea](https://blog.aquatech.com/aquatech-awarded-fgd-zld-project-in-south-korea) ### Related posts [![Leveraging Water and Wastewater Treatment Know-how to Benefit the Global Mining Sector](https://blog.aquatech.com/hubfs/Mining2.jpg)](https://blog.aquatech.com/leveraging-water-and-wastewater-treatment-know-how-to-benefit-the-global-mining-sector) [Leveraging Water and Wastewater Treatment Know-how to Benefit the Global Mining Sector](https://blog.aquatech.com/leveraging-water-and-wastewater-treatment-know-how-to-benefit-the-global-mining-sector) May 10, 2018 [![QUA's FEDI Technology Used to Protect The Nile River](https://blog.aquatech.com/hubfs/FEDI%20Skid%20at%20Ethydco%20Site.jpg)](https://blog.aquatech.com/quas-fedi-technology-used-to-protect-the-nile-river) [QUA's FEDI Technology Used to Protect The Nile River](https://blog.aquatech.com/quas-fedi-technology-used-to-protect-the-nile-river) May 09, 2018 [![Aquatech Awarded ZLD Project in India](https://blog.aquatech.com/hs-fs/hubfs/experience%20reliability.png?t=1524167999259&width=841&height=118&name=experience%20reliability.png)](https://blog.aquatech.com/aquatech-awarded-zld-project-in-india) [Aquatech Awarded ZLD Project in India](https://blog.aquatech.com/aquatech-awarded-zld-project-in-india) May 03, 2018 [![QUA Project Featured Membrane Technology Magazine](https://blog.aquatech.com/hubfs/DSC00746-1.jpg)](https://blog.aquatech.com/quas-qsep-) [QUA Project Featured Membrane Technology Magazine](https://blog.aquatech.com/quas-qsep-) April 28, 2018 [![Zero Liquid Discharge Success Factors](https://blog.aquatech.com/hubfs/ELEL%20Italy%20Power%20Plant%20FGD%20ZLD%20Photo%201.jpg)](https://blog.aquatech.com/zero-liquid-discharge-success-factors) [Zero Liquid Discharge Success Factors](https://blog.aquatech.com/zero-liquid-discharge-success-factors) April 26, 2018 [![The Future of Membranes](https://blog.aquatech.com/hubfs/QUA%20UF%20Membrane%20Skid%20AIC%20edited.jpg)](https://blog.aquatech.com/qua-recently-featured-in-wateronline) [The Future of Membranes](https://blog.aquatech.com/qua-recently-featured-in-wateronline) April 18, 2018 [Return to Main Blog](https://blog.aquatech.com) #### Contact Us Leverage our experience and expertise to find the best solution to your water challenge. Our sales managers are always available share our solutions and expertise. [Mail](mailto:aic@aquatech.com) [Website](https://aquatech.com/contact/) #### Downloads - [Aquatech Corporate Brochure](https://aquatech.com/wp-content/uploads/2017/11/Aquatech-Corporate-Brochure.pdf) - [Total Water Management Brochure](https://aquatech.com/wp-content/uploads/2017/11/TWM-Brochure.pdf) - Recent - Popular - Categories ### Lists by Topic - [News (34)](https://blog.aquatech.com/tag/news) - [Press Releases (8)](https://blog.aquatech.com/tag/press-releases) - [Case Studies (5)](https://blog.aquatech.com/tag/case-studies) ### Subscribe for updates [Go to Top](https://blog.aquatech.com/how-quas-fedi-technology-stacks-up#top) ![Aq-Globe](https://blog.aquatech.com/hubfs/Aquatech%20January2018%20Theme/Images/aq-Globe-100-300x300.jpg) #### Aquatech International Headquarters ONE FOUR COINS DR CANONSBURG, PA 15317 724.746.5300 855.728.0001 AIC@AQUATECH.COM - [About](https://aquatech.com/about/) - [Aquatech Customers](https://aquatech.com/about/aquatech-customers/) - [Careers](https://aquatech.com/about/careers/) - [News & Press](https://aquatech.com/news-press-events/) - [AQWALIFE](http://aqwalife.org) - [Nalco Water](http://www.ecolab.com/nalco-water/) #### Connect [Facebook](https://www.facebook.com/aquatechintl/) [Twitter](https://twitter.com/aquatechintl?lang=en) [YouTube](https://www.youtube.com/user/AquatechFilms) [Linkedin](https://www.linkedin.com/company/99139/) [Mail](mailto:aic@aquatech.com) - [Privacy Policy](https://aquatech.com/about/privacy-policy/) - [Terms Of Use](https://aquatech.com/about/terms-of-use/) ©2017 Aquatech International LLC. All Rights Reserved. I ISO 9001:2015 Certified Company