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Liqui-Cel® Membrane Contactors Improve Water Quality and EDI Performance

From Membrana
 

 

Electrodeionization (EDI) is a widely used water treatment process. EDI technology is an electrochemical process that uses ion selective membranes and an electrical current to continuously remove ions from water. The process uses ion exchange resin to remove the ions from the feed stream, producing pure water. A DC current continuously regenerates the resin. This technology operates under the same principles as conventional ion exchange resin technology with the added benefit of being a continuous process free of regeneration chemicals.

In order to maximize the performance of an EDI unit, proper pretreatment is required. EDI equipment suppliers have different guidelines regarding feed water requirements but generally the specification can be summarized on the chart to the right.

Products & Services
Filtration media and elements are designed to remove suspended particles from a process stream. This product area includes bulk filter media, cartridges, housing-only products, and housing and filter assemblies.  Search by Specification | Learn more about Filtration Media and Elements
Specialty filtration and separation equipment includes specialized or proprietary products and accessories for filtration and separation. Learn more about Specialty Filtration and Separation Equipment
Product Announcements
Membrana - Carbon Dioxide Removal from Water
Carbon dioxide is a common cause of the high conductivity. Membrane contactors remove carbon dioxide from water, typically upstream, without a chemical pH adjustment, allowing EDI and CDI systems... (read more)
Siemens Water Technologies - Ion Exchange
Ion exchange is an exchange of ions between two electrolytes or between an electrolyte solution and a complex. Siemens Water Technologies offers a wide selection of ion exchange products to suit your... (read more)
GE Analytical Instruments (formerly Ionics Instruments) - Boron Analyzer
With a limit of detection of 15 parts-per-trillion boron and up to 10 samples per hour, continuous boron monitoring in ultrapure water has just become very affordable and remarkably convenient. The... (read more)
Membrana - Oxygen Removal from Water
Dissolved oxygen in a liquid stream can have many negative impacts on processes because it causes corrosion and oxidizes materials, such as piping and boilers. Liqui-Cel® Contactors are an... (read more)
Res-Kem Corp. - Service Deionization (SDI)
Res-Kem Corp's sister company, General Water, is a focused, water treatment service company specializing in portable exchange DI water systems for Delaware, New Jersey, Eastern Pennsylania, and... (read more)
Res-Kem Corp. - Resin Traps/Media Traps for Water Treatment
Resin Traps and Media Traps for Water Treatment Systems. Resin traps/media traps are protection devices that prevent a complete loss of ion exchange resin, activated carbon, filter media, greensand,... (read more)
Membrana - Liqui-Cel®
Liqui-Cel® Membrane Contactors remove from or add gasses to liquids. They are widely used for O2 removal from water as well as CO2 removal from water. Membrane Contactors have displaced vacuum towers,... (read more)
Membrana - Debubbling
Bubbles often cause many process issues in analytical systems and process water systems if not removed. In analytical and measurement systems, bubbles can also have an unintended impact on readings. (read more)
Mar Cor Purification - Reverse Osmosis Technology - Industrial
Mar Cor Purification 4400C Reverse Osmosis Machine produces high purity water accomplished by pressurizing incoming potable water and forcing it through a semi-permeable membrane. The Reverse Osmosis... (read more)
Membrana - Ammonia Removal
Many industries face Ammonia contamination issue with their wastewater because Ammonia is often used to clean in many processes. Unfortunately, the Ammonia often ends up in plant wastewater. (read more)
Topics of Interest
A major power plant in Thailand is using Liqui-Cel® Membrane Contactors to remove carbon dioxide from a DI water system. The system is an expansion project and will be used to feed a high... (Read More)
In a typical small flow water system, that contains an RO membrane and Ion Exchange Resin, Liqui-Cel® Membrane Contactors may be able to save the customer thousands of dollars a year in chemical... (Read More)
RO membranes coupled with EDI/CDI technology are rapidly gaining acceptance in the production of high purity water. Coupling the two technologies offers many advantages to the conventional RO mixed... (Read More)
ION EXCHANGE Ion exchange involves removing unwanted ions from water and replacing them with other ions, changing the composition of the water. This is done by passing water through a bed of... (Read More)
Pureflow, Inc. is a Southeastern-based expert in designing complete water treatment systems as well as providing value-added solutions for fixing operational issues in existing systems. Pureflow... (Read More)
See more product announcements for Filtration Media and Elements
Meltblown Polypropylene Filter Cartridges

Meltblown Polypropylene Filter Cartridges
Pentair Industrial


MaxFlo® SF

MaxFlo® SF
Agrilectric Research- MaxFLO Filtration


Single Cartridge Housing

Single Cartridge Housing
Shelco Filters - Division of Tinny Corp.


11 See more product announcements for Filtration Media and Elements