INDUSTRIAL APPLICATIONS – MemBrain - Industrial research and innovations

INDUSTRIAL SURFACE TREATMENT

WASTE ACID RECYCLING USING DIFFUSION DIALYSIS
Diffusion dialysis (DD) is an ion-exchange membrane separation process which can be applied for the separation and recovery of free acid from waste solutions containing acid contaminated by their salts.
After purification, the diffusate contains about 90 % of the total amount of free acid originally present in the feed solution, the remaining free acid remains in the dialysate. The concentration of metal cations in the recycled acid drops approx. 20 times in one pass technology.
For more information about DD see Diffusion dialysis.

AUTOMOTIVE

ANTIFREEZE REUSE TECHNOLOGY (RALEX ART)
Ralex® ART consists of a practical pretreatment step and highly efficient electrodialysis step to gain a mixture of water and pure glycol while retaining low energy and chemical consumption.
The pretreatment step could contain oil removal, simple filtration, active carbon and coagulation step, and deep filtration. The following step, desalination, is made by electrodialysis technology. The electrodialysis task is removing organic and inorganic salts.
The final product is an aqueous solution of glycols or glycerol with a significantly reduced content of impurities and original additives (conductivity less than 0.3 mS/cm). The purified desalinated glycol can be used as antifreeze again after the additives are added.
More information about Ralex® ART at https://www.mega.cz/antifreeze-recycling/

LITHIUM PURIFICATION USING ED AND EDM
Lithium purification is done by patented technology based on electrodialysis (ED) and electrodialysis metathesis. This process can be applied in primary mining – for brines like LiCl or minerals like spodumene or in recovery from batteries.
More information about lithium purification in datasheet MemBrain_Lithium.pdf

BATTERY REGENERATION (LEAD AND LIB)

POWER & ENERGY

ZERO LIQUID DISCHARGE (ZLD)
Zero Liquid Discharge (ZLD) is an advanced water treatment process with the goal of reusing as much water as possible in the production process without the need to discharge any waste.
ZLD is the ultimate wastewater treatment process which has zero or nearly zero impact on the environment. By combining several processes, salt (which can be reused or sold) and purified water that can be reused in the technology, are recovered from the wastewater. This makes it possible to reduce the operating costs of the main technology. These benefits make ZLD one of the most popular technologies to reduce the industry's environmental impact, especially in countries that are subject to strict environmental regulations on industrial waste.
More information about ZLD at https://www.mega.cz/zero-liquid-discharge/

ULTRAPURE WATER USING EDI
Ultrapure water (UPW) or high purity water (HPW) are terms describing water that has been purified at very strict specifications as close as possible to pure H2O by combining water purification component technologies.
Also, the ultrapure water has removed all the conductive components such as solid substances, salts, organic particles and dissolved gases. That is why the high purity water has very low conductivity which means it is high in resistivity.
More information about UPW at https://www.mega.cz/ultrapure-water/

WASTEWATER TREATMENT FROM ENERGY INDUSTRY
Sustainable Water Management means reusing and treating water to solve water challenges while minimizing environmental impact. Pre-engineered and custom designed water treatment solutions, which reliably deliver high-quality and save water for any application and from any water source.
Mega RALEX® EDR stacks are used for the removal of charged contaminants such as total dissolved solids (TDS), nitrate, arsenic, radionuclides, fluoride, sulfate and chloride. The most typical applications are desalination of ground and surface brackish water for potable use, TDS removal from tertiary-treated wastewater for irrigation or to meet discharge requirements or recovery of industrial wastewater (cooling make-up water, boiler make-up water, cooling water blowdown water reuse, process water).
More information about wastewater treatment in datasheet MemBrain_Wastewater treatment.pdf

ELECTROLYSIS H2 PREPARATION ULTRAPURE WATER

OIL & GAS

ANTIFREEZE REUSE TECHNOLOGY (RALEX ART)
Ralex® ART consists of a practical pretreatment step and highly efficient electrodialysis step to gain a mixture of water and pure glycol while retaining low energy and chemical consumption.
The pretreatment step could contain oil removal, simple filtration, active carbon and coagulation step, and deep filtration. The following step, desalination, is made by electrodialysis technology. The electrodialysis task is removing organic and inorganic salts.
The final product is an aqueous solution of glycols or glycerol with a significantly reduced content of impurities and original additives (conductivity less than 0.3 mS/cm). The purified desalinated glycol can be used as antifreeze again after the additives are added.
You can find more information at https://www.mega.cz/antifreeze-recycling/

AMINE SOLVENT PURIFICATION FROM DIFFERENT REFINERY STREAMS
The task is keeping the amine unit at maximum performance during the CO2 capture process. The technical solution is based on integrated membrane technology.
Separation of unwanted compounds from amine scrubber treating various process streams:
• Partial oxidation of petroleum residues
• Fluidized Catalytic Cracking (FCC) Flue Gas
• Coker Off-gas
Membrane technology using electrodialysis (ED) allows separation of Formates, Acetates, Oxalates and Bicine.
More information about amine solvent purification in datasheet MemBrain_Amine solvent purification.pdf

AMMONIUM SOLVENT PURIFICATION FROM DIFFERENT REFINERY STREAMS
For more information, please contact our sales representative.

HYDROGEN AND HYDROCARBON RECOVERY FROM VARIOUS REFINERY STREAMS
It is a solution based on integrated membrane technology.
Advantages of this process are:
• Economical savings
• Hydrogen recovery higher than 75 % (adjustable)
• Hydrogen purity higher than 97 % (adjustable)
• Robust and reliable operation
More information about hydrogen recovery in datasheet MemBrain_Hydrogen and hydrocarbon recovery.pdf

MINING

DESALINATION AND RECYCLING OF MIXED WASTEWATER
Sustainable Water Management means reusing and treating water to solve water challenges while minimizing environmental impact. Pre-engineered and custom designed water treatment solutions, which reliably deliver high-quality and save water for any application and from any water source.
Mega RALEX® EDR stacks are used to remove charged contaminants such as total dissolved solids (TDS), nitrate, arsenic, radionuclides, fluoride, sulfate and chloride. The most typical applications are desalination of ground and surface brackish water for potable use, TDS removal from tertiary-treated wastewater for irrigation or to meet discharge requirements or recovery of industrial wastewater (cooling make-up water, boiler make-up water, cooling water blowdown water reuse, process water).
More information about wastewater treatment in datasheet MemBrain_Wastewater treatment.pdf

LITHIUM PURIFICATION USING ED AND EDM
Lithium purification is done by patented technology based on electrodialysis (ED) and electrodialysis metathesis. This process can be applied in primary mining – for brines like LiCl or minerals like spodumene, or in recovery from batteries.
More information about lithium purification in datasheet MemBrain_Lithium.pdf

USAGE OF EDBM AND DD FOR ACID REGENERATION
Diffusion dialysis (DD) is an ion-exchange membrane separation process which can be applied for the separation and recovery of free acid from waste solutions containing acid contaminated by their salts.
After purification, the diffusate contains about 90 % of the total amount of free acid originally present in the feed solution, the remaining free acid remains in the dialysate. The concentration of metal cations in the recycled acid drops approx. 20 times in one pass technology.
More information about DD in datasheet MemBrain_Diffusion dialysis.pdf

DAIRY

WHEY DEMINERALIZATION
MEGA is a leading electrodialysis technology provider for dairy companies which produce demineralized whey powder as an ingredient for subsequent use in the food industry applications.
MEGA dairy processing technology turns whey and all its sub-products from a by-product stream into a new source of profit and opens new markets for you.
More information about whey demineralization at https://www.mega.cz/whey-processing/

LACTOSE BASED UF PERMEATE DEMINERALIZATION
After ultrafiltration of whey, up to 95% of the solution is rejected as permeate despite its high lactose content. The reason for rejection is a very high mineral content from 9% up to 12 % ODB and high acidity after the whey is filtrated.
By processing of the UF permeate with electrodialysis you can produce an edible food-grade lactose for further use in confectionery, bakery or animal feed. That means that you can expand your product portfolio and increase your revenue by utilizing a by-product of cheese production.
The electrodialysis process also minimizes the evaporator and spray dryer scaling issues of an untreated UF permeate. And in that way partially prevents costs connected with the after-treatment maintenance which makes it a very effective solution for multiple parts of your production process and provides you with cost-effective advantages.
More information about UF permeate at https://www.mega.cz/whey-permeate-demineralization/

MOTHER LIQUOR DEMINERALIZATION
Delactosed whey (DLW) or Mother Liquor (ML) is produced from concentrated whey which has been partly delactosed by crystallization. It is a saturated lactose solution (45-50% ODB) with a content of protein (26-33% ODB), organic acids and mineral substances (10-12% ODB), the total amount of dry matter is 40%. Due to a high volume of salts and acids, DLW/ML can’t be further reused as an animal feed.
The electrodialysis is an effective solution for reducing the salts and acids concentration after the original content of dry matter is diluted to 18-22% to assure better hydrodynamic conditions of the electrodialysis process. The demineralized product can be reused in lactose production in order to increase the volume of the product. It means that it can be used either directly in liquid or spray dried.
More information about ML demineralization at https://www.mega.cz/dairy/

LIQUID SWEET WHEY HEAT STABILITY IMPROVEMENT USING SPECIAL SOFTENING ED
The liquid sweet whey is containing the complex of valuable serum proteins used in infant formula, nutritional supplements, and food industry. The serum proteins may undergo heat-induced degradation affecting its bioavailability and appearance. The most important feature is precipitation and gelation of serum proteins in the presence of the calcium and magnesium ions. Heat treatment of serum protein solutions gives the possibility to introduce on market new “to-go” products with extended shelf life. Calcium and magnesium ions are partially exchanged by monovalent ions using a unique configuration electrodialysis process. Calcium and magnesium partially depleted solution of serum proteins gains higher heat treatment resistance; thus, precipitation and gelation of the serum proteins are avoided.
More information about heat stable WPC in datasheet MemBrain_Heat-stable WPC.pdf

PREPARATION OF PROTEIN CONCENTRATES FROM MILK AND WHEY
We deal with all whey and other milk by-products issues. You save money on waste disposal and profit on selling or internal reusing of processed whey.
Demineralized whey can be used in infant formula, nurse nutrition, sports nutrition, ice cream and yoghurts or as animal feed. Process all types of cow, buffalo or goat dairy by-products.
More information about protein preparation at https://www.mega.cz/dairy/

FOOD & BAVERAGE

DESALINATION OF SACCHARIDES AND OLIGOSACCHARIDES
Removal of acids and salts from solutions of monosaccharides, disaccharides and oligosaccharides by RALEX® electrodialysis.
More information about desalination of saccharides at https://www.mega.cz/special/

DESALINATION OF LACTULOSE
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.
More information about lactulose desalination at https://www.mega.cz/special/

XYLOSE PURIFICATION
Xylose is a monosaccharide used for furfural production, xylitol production or other purposes. It is mainly produced by acid hydrolysis of lignocellulosic biomass from various sources.
The electrodialysis (ED) separation process could be used as a part of the DSP for the purification of the hydrolysis product. The purpose of ED is to remove mineral and organic acids and dissolved salts as ash from the feed solution. Nevertheless, the raw solution contains a large amount of other organic compounds which has to be removed prior ED process in order to avoid membrane fouling and thus, loss of performance. The appropriate pretreatment steps are microfiltration and adsorption by active carbon. Electrodialysis itself can typically obtain product quality between a 1 to 4 % ash dry matter basis. Optimization of the ED position in DSP has to be made for each particular case in close cooperation with an industrial partner.

SWEETENERS DESALINATION AND PURIFICATION
Removal of acids and salts from solutions of monosaccharides, disaccharides and oligosaccharides by RALEX® electrodialysis.
More information about sweeteners desalination at https://www.mega.cz/special/

PH ADJUSTMENT OF FRUIT JUICES
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 a wide range of natural juices.
More information about pH adjustment of fruit juices at https://www.mega.cz/special/

PRODUCTION AND PROCESSING OF ORGANIC ACIDS
Organic acids are usually produced using fermentation. Heterogenous EDBM RALEX® technology provides a 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.
More information about production of organic acids

WASTEWATER PROCESSING AND REGENERATION
Mega RALEX® EDR stacks are used for the removal of charged contaminants such as total dissolved solids (TDS), nitrate, arsenic, radionuclides, fluoride, sulfate and chloride. The most typical applications are desalination of ground and surface brackish water for potable use, TDS removal from tertiary-treated wastewater for irrigation or to meet discharge requirements or recovery of industrial wastewater (cooling make-up water, boiler make-up water, cooling water blowdown water reuse, process water).
More information about wastewater treatment in datasheet MemBrain_Wastewater treatment.pdf

GAS SEPARATION AND PREPARATION
For more information, please contact our sale representative.

PURIFICATION OF AMINO ACIDS AFTER HYDROLYSIS

PHARMA

PURIFICATION OF ORGANIC ACIDS AND AMINO ACIDS
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.
More information about production of organic acids at https://www.mega.cz/special/

SEMICONDUCTORS

ACID REGENERATION IN PCB PRODUCTION

AGRICULTURE

DESALINATION AND RECYCLING OF MIXED WASTEWATER
Mega RALEX® EDR stacks are used for the removal of charged contaminants such as total dissolved solids (TDS), nitrate, arsenic, radionuclides, fluoride, sulfate and chloride. The most typical applications are desalination of ground and surface brackish water for potable use, TDS removal from tertiary-treated wastewater for irrigation or to meet discharge requirements or recovery of industrial wastewater (cooling make-up water, boiler make-up water, cooling water blowdown water reuse, process water).
More information about wastewater treatment in datasheet MemBrain_Wastewater treatment.pdf

BIOGAS SEPARATION FOR PRODUCTION OF BIOMETHANE (BIOCNG)
We deliver biogas upgrading units based on membrane gas separation method. Our solution is suitable for agriculture and municipal biogas stations, as well as for wastewater treatment gases.
Our RALEX® BU units cover capacities ranging from 25 m3 to 1000 m3 – from BioCNG production for one's own consumption to biomethane grid injection. By using our biogas separation technology which produces biomethane, an alternative to natural gas, you will contribute to improving the environment while increasing your company's profits.
Biomethane is used under the name BioCNG as fuel for cars, buses, trucks, tractors or is pressed into the gas network and burned in gas boilers.
More information about biomethane at https://www.mega.cz/gas/

FERTILIZER PRODUCTION
For more information, please contact our sale representative.

IRRIGATION WATER TREATMENT

ADJUSTMENT OF WASTEWATER SALINITY AND PH

MUNICIPAL

DESALINATION AND RECYCLING OF MIXED WASTEWATER
Processing of municipal wastewater for agricultural reuse. The electrodialysis technology by MEGA can effectively separate water and the concentrate of effluents. The water can be reused for irrigation, as it was already designed for Spain in the extreme draught.
More information about wastewater treatment in datasheet MemBrain_Wastewater treatment.pdf

ADJUSTMENT OF WASTEWATER SALINITY AND PH

CHEMICAL

PRODUCTION OF ACIDS AND BASES USING EDBM
Upcycle salt waste into acids and bases for internal reuse. The electrolysis of water on bipolar membrane boundary and subsequent reaction with other ions in the wastewater create basic acids and bases. These are returned to the process or used for cleaning or neutralization.
Industrial waste contains ingredients, which can be processed to gain chemicals for reuse in the process and lower the amount of waste for disposal. Below are only a few examples of industrial waste sources which can be further used.
- Flue gas desulfurization in incineration plant
- NaCl waste from aminoacids production
- Amine scrubber recycling from epoxy resin production
- NH4NO3 recycling from uranium waste

ZERO LIQUID DISCHARGE (ZLD)
Zero Liquid Discharge (ZLD) is an advanced water treatment process with the goal of reusing as much water as possible in the production process without the need to discharge any waste.
ZLD is the ultimate wastewater treatment process which has zero or nearly zero impact on the environment. By combining several processes, salt (which can be reused or sold) and purified water that can be reused in the technology, are recovered from the wastewater. This makes it possible to reduce the operating costs of the main technology. These benefits make ZLD one of the most popular technologies to reduce the industry’s environmental impact, especially in countries that are subject to strict environmental regulations on industrial waste.
More information about ZLD at https://www.mega.cz/zero-liquid-discharge/

WASTE ACID RECYCLING USING DIFFUSION DIALYSIS
Diffusion dialysis (DD) is an ion-exchange membrane separation process which can be applied for separation and recovery of free acid from waste solutions containing acid contaminated by their salts.
After purification, the diffusate contains about 90 % of the total amount of free acid originally present in the feed solution, the remaining free acid remains in the dialysate. The concentration of metal cations in the recycled acid drops pprox.. 20 times in one pass technology.
More information about DD in datasheet MemBrain_Diffusion dialysis.pdf

LITHIUM PURIFICATION USING ED AND EDM
Lithium purification is done by patented technology based on electrodialysis (ED) and electrodialysis metathesis. This process can be applied in primary mining – for brines like LiCl or minerals like spodumene, or in recovery from batteries.
More information about lithium purification in datasheet MemBrain_Lithium.pdf

SEPARATION OF HYDROGEN FROM PYROLYSIS GAS
It is a solution based on integrated membrane technology.
Advantages of this process are:
• Economical savings
• Hydrogen recovery higher than 75 % (adjustable)
• Hydrogen purity higher than 97 % (adjustable)
• Robust and reliable operation
More information about hydrogen recovery in datasheet MemBrain_Hydrogen and hydrocarbon recovery.pdf

SEPARATION OF NITROGEN AND OXYGEN
For more information, please contact our sale representative.

AMIN SCRUBBER (CO2 CAPTURE FROM FLUE-GAS)
The task is keeping the amine unit at maximum performance during the CO2 capture process. The technical solution is based on integrated membrane technology.
Separation of unwanted compounds from amine scrubber treating various process streams (partial oxidation of petroleum residues; Fluidized Catalytic Cracking (FCC) Flue Gas; Coker Off-gas)
Membrane technology using electrodialysis (ED) allows separation of Formates, Acetates, Oxalates and Bicine.
More information about CO2 capture in datasheet MemBrain_Amine solvent purification.pdf
AMMONIA SCRUBBER (CO2 CAPTURE FROM FLUE-GAS)
For more information, please contact our sale representative.

MACHINERY

TEXTILE INDUSTRY

ZERO LIQUID DISCHARGE (ZLD)
Zero Liquid Discharge (ZLD) is an advanced water treatment process with the goal of reusing as much water as possible in the production process without the need to discharge any waste.
ZLD is the ultimate wastewater treatment process which has zero or nearly zero impact on the environment. By combining several processes, salt (which can be reused or sold) and purified water that can be reused in the technology, are recovered from the wastewater. This makes it possible to reduce the operating costs of the main technology. These benefits make ZLD one of the most popular technologies to reduce the industry’s environmental impact, especially in countries that are subject to strict environmental regulations on industrial waste.
More information about ZLD at https://www.mega.cz/zero-liquid-discharge/

PAPER INDUSTRY

ADJUSTMENT OF WASTEWATER SALINITY AND PH

RUBBER INDUSTRY

ADJUSTMENT OF WASTEWATER SALINITY AND PH