Efficient production, separation and purification of valuable substances using RALEX bipolar electrodialysis

Special Applications

RALEX® standard and bipolar membrane electrodialysis for efficient production, separation and purification of your valuable substances

Did you know?

Compared to RO, ED technology can concentrate dissolved solids to salinity up to 200 g/l

Custom solution based on in-house RALEX® membranes, stacks and units.

Regional offices and service partners around the world ensure tailored care for different customers.

Experienced and skilled professionals in the electrodialysis technology application process.

Glycol & Glycerol purification

Glycols recycling - antifreeze & HVAC coolants

Glycols recycling - antifreeze & HVAC coolants

RALEX® ART - Antifreeze Reuse Technology is a unique technology consisting of effective pretreatment and highly efficient electrodialysis. Coolants, antifreeze, HVAC and airport de-icing fluids are recycled and can be reused to produce new coolant fluids.

Find out more about antifreeze recycling

Purification of crude glycerol from biodiesel

Purification of crude glycerol from biodiesel

Crude glycerol is the main byproduct of the transesterification process in biodiesel processing. MEGA provides highly efficient and cost-effective electrodialysis application for purifying crude glycerin from biodiesel production.

Find out more about glycerol purification

Wine stabilization and pH adjustment

Wine stabilization

Wine stabilization

Highly efficient electrodialysis for winemakers to remove tartrates from wine. MEGA offers new electrodialysis (ED) technology, which successfully removes the tartrates, potassium, etc. content from the raw wine and therefore lowers the tartaric instability of the wine. It can be adapted to each wine and is fully automatic.

Find out more about wine stabilization

Adjusting wine acidity with membranes technology

Adjusting pH of wine after fermentation

Adjusting wine acidity with membranes technology. MEGA offers bipolar electrodialysis (EDBM), which can be adapted to each white, red, and rose wine. Adjust the natural acidity of the wine and obtain a final product of excellent taste. Our technology is suitable for both small and large wineries.

Find out more about wine pH adjusting

Juices and ciders pH adjustment

Juices and ciders pH adjustment

Improve the taste of fruit juice by adjusting the pH

Highly efficient bipolar electrodialysis for the beverage industry to improve the fruit juices and cider taste. MEGA offers bipolar electrodialysis technology to raise or lower the pH of fruit juices, which significantly affects their organoleptic properties. It can be adapted for large manufacturers (easy to implement in existing production lines) or for small production plants (mobile units).

Find out more about juice and cider ph adjustment

Lithium extraction and purification

Lithium extraction, recycling, and refining technology

Lithium extraction, recycling, and refining technology

Patented MEGA electrodialysis solution is a very efficient technology that reduces the operating costs of obtaining higher lithium concentrations. MEGA offers electrodialysis for lithium extraction processes from hard rock and spodumene, the brine extraction processes and lithium battery recycling.

Find out more about lithium extraction, recycling, and refining

Sugar and organic compounds purification

Purification of organic (bio) compounds

Purification of organic (BIO) compounds

MEGA offers new technology, which can fully meet the organic product requirements and at the same time successfully remove the ash content from the feed solution and due to this fact decrease the amount of salt in the final product.

Find out more about organic ingredients purification techniques

Ecological and cost effective applications for sugar industry

Ecological and cost effective applications for sugar industry

Electrodialysis is a very efficient technology for sugar solution purification with low energy and chemical consumption. MEGA offers electrodialysis for higher purity products and therefore improves the cost-effectiveness of sugar factories.

Find out more about sugar purification

Molasses processing - application for beet/cane sugar mills

Molasses processing - application for beet/cane sugar mills

MEGA offers electrodialysis for molasses demineralization in sugar mills, giving molasses a new purpose of use as an additional source of sugar.

Find out more about molasses processing

Tailor-made solution for every valuable substance

From membrane to industrial application

From membrane to industrial application

MEGA is developing and manufacturing the RALEX® membranes. We use them to produce stacks. And we use our stacks to assemble complete ED and EDBM units from laboratory to large-industrial-scale water treatment units.

Lab & pilot testing

Lab & pilot testing

Verify the separation process with your feed samples. Testing can be done in a small scale in the Membrane Innovation Centre or on-site using our pilot units.

Electrodialysis explained

Electrodialysis explained

Electrodialysis is an electric field gradient driven process enabling the separation of mineral matters from feed solutions while moving dissociated ions through ion-permselective membranes and forming two different flows - desalted flow called diluate and a concentrated flow called concentrate.

What we do

Food Processing & Beverage Industry

Whey is a by-product of cheese production. It has a high mineral content of 8-10 % in TDS which results in low sensoric properties and overall low value of whey. Demineralization by electrodialysis turns the low value whey into a sweet substance ready for internal reuse or up to pharmeceutical quality for use in infant nutrition.

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Find out more

Avoid precipitation of tartrate salts into the final product. Electrodialysis technology removes part of tartrates in energy efficient way without addition of chemicals in very short time. Alcohol, sugars content and taste don't change.

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Chemicals-free pH adjustment for fruit juices, wines and ciders improves organoleptic properties using electrodialysis bipolar membrane (EDBM) technology with RALEX® membranes. Especially suitable for sour beverages, where high acidity causes unpleasant feelings to the consumer. Applicable for wide range of natural juices.

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Contact us for a similar solution

Electrodialysis with bipolar membrane technology decreases pH of apple juice and then increases it back to the previous level. This temporary change stabilizes the apple juice without adding ascorbic acid.

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Removal of acids and salts from solutions of monosaccharides, disaccharides and oligosaccharides by RALEX® electrodialysis.

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Special Nutrition Supplements Industry

Lactulose syrup is a feed solution of lactulose after isomerisation by chemical catalysers. There is a high mineral content due to the agents of catalysers. Electrodialysis allows their removal to receive the final product, which is then used in the food industry or pharmaceutical applications.

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Contact us for similar a solution

Demineralization of substances with probiotic and dietary effect as Galactooligosaccharides - GOS, Fructooligosaccharides – FOS, Chitooligosaccharides - COS; Xylooligosaccharides - XOS, Isomaltooligosaccharides - IMO, Soybean oligosaccharides - SOS.

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Fine Chemicals Industry

Organic acids are usually produced using fermentation. Heterogenous EDBM RALEX® technology provides viable alternative to the fermentation. Alongside the production the feed is acidified and salts are removed. Up to 95% conversion is achievable with EDBM only, final 5 % are usually polished using IEX.

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Separation of monovalent and bivalent ions from valuable non-charged organic substances – proteins, amino-acids, pharmaceutic preparations (e.g. butyrobetaine, thymidine, L-carnitine, xylose).

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Saccharides, amino acids and specialties from the range of food processing and pharmaceutic preparations have high added value. We are able to separate unwanted substances, primarily salts, and return valuable substances from the useless mixture into the production process.

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Chemical Industry

MEGA has developed an unique technology consisting of effective pretreatment and highly efficient electrodialysis to gain mixture of water and clean glycols while retaining low energy and chemicals consumption. Technology can be applied for car cooling antifreeze and airport de-icing fluids, HVAC, as well as for glycols used for dehydratation of natural gas extraction.

Contact us for a similar solution       Continue to Antifreeze recycling
Contact us for a similar solution       Continue to Antifreeze recycling

Crude glycerine as the by-product of biodiesel production contains besides glycerine, water and salts different substances and impurities. To gain the most valuable product with high purity for food, cosmetics, pharmaceutical, personal care and tobacco industry, it´s required to apply a series of purificatin steps. MEGA offers low energy electrodialysis process for crude glycerine demineralization.

Contact us for a similar solution       Continue to purification of crude glycerol from biodiesel
Contact us for a similar solution       Continue to purification of crude glycerol from biodiesel

Gain chemicals for reuse in process and lower the amount of waste.

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Contact us for a similar solution

Products & Technologies

RALEX® products

Low-capacity ED units RALEX® EWDU Series P

Low capacity ED or EDBM units RALEX® ELPU Series P

Electrodialysis small to medium capacity units for purification and demineralization of various liquid streams types. Autonomous processing unit with own system for operating and control of process parameters. Capacity modification with one or two electrodialysis stacks. Standard operating in batch mode. Can be standard execution or used special components materials depending on product chemical properties.

RALEX® EWDU nx EDR-II

High capacity RALEX® ELPU

Industrial scale unit for purification and demineralization of various liquid streams types. Industrial autonomous processing unit with own system for operating and control of process parameters. Capacity modification from two to eight electrodialysis stacks. Automatic chemical CIP. Standard operating in batch mode. Capacity is designed upon customer’s request. Option of extendable units. Can be standard execution or used special components materials depending on product chemical properties.

We care about you

MEGA Care saves your money.
Get all the care you need.

24/7 Specialist Hotline
Remote technology diagnostics
Periodical post-warranty checks

MEGA Care reduces downtimes to the necessary technological minimum by active monitoring, prevention and remote adjustments in advance. Periodical inspections at the point of installation provide three days of exhaustive evaluation during reular production, membrane samples are sent to MEGA laboratory for testing to show early signs of scaling or fouling. Inspections to gather hands-on data together with overall parameters monitoring bring necessary information to ensure reliable performance.

More about MEGA Care

MEGA Care reduces downtimes to the necessary technological minimum by active monitoring, prevention and remote adjustments in advance. Periodical inspections at the point of installation provide three days of exhaustive evaluation during reular production, membrane samples are sent to MEGA laboratory for testing to show early signs of scaling or fouling. Inspections to gather hands-on data together with overall parameters monitoring bring necessary information to ensure reliable performance.

More about MEGA Care

Interested? Contact us.

Maxim Kryzanovsky

Maxim Kryzanovsky

Sales Manager

+420 720 078 786 maxim.kryzanovsky@mega.cz
Ales Platzer

Ales Platzer

Sales Manager

+420 702 176 317 ales.platzer@mega.cz
Lukas Semian

Lukas Semian

Sales Manager

+420 778 463 642 lukas.semian@mega.cz

MEGA a.s.

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Pod Vinici 87
Straz pod Ralskem
471 27 Czechia

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