Dairy Electrodialysis

Electrodialysis in dairy

Whey demineralization by MEGA electrodialysis applications

Did you know?

Electrodialytic phenomena present a great potential for application in the dairy industry. Many of these applications have to be discovered. And so we do.

Why choose MEGA Electrodialysis technology


Nowadays, implementing of demineralization technologies in the food industry is becoming more and more popular and essential, especialy implementing of electrodialysis.

The demineralization by electrodialysis is the right solution particularly for liquid by-products, which contains high concentration of minerals or acids.

MEGA Electrodialysis Application Overview

What does electrodialysis do

  • Ash decrease
  • Adjustment of acidity
  • Standartization of organoleptic properties
  • Increase the competitiveness of the product
  • Getting of an additional profit
  • Lower ecological burden of a production cycle
MEGA Electrodialysis Application Overview

Main advantages of Electrodialysis by MEGA

  • 50%, 70% and 90% demineralization level reached only by ED
  • Batch mode
  • Design flexibility
  • The EWDU units are manufactured in compliance with strict hygienic standards
  • reversibility of the whole ED unit
  • low processing temperature 8 – 15 C
MEGA Electrodialysis Application Overview

MEGA´s electrodialysis technology for use in dairy

Electrodialyser is the main functional component in which the electrodialysis process runs. It simply transports all charged components (minerals, acids etc.) from diluate loop to concentrate loop. It is all driven by DC current.

MEGA produces reversal electrodialysis module (EDR), which is used for demineralization of different kind of solutions.

Electrodialysis explained

Electrodialysis process in dairy

What is electrodialysis

Electrodialysis (ED) is an electrochemical separation process uses electrical power (DC voltage) to transfer dissociated charged ions (cations or anions) through ion selective membranes and forming two different loops – desalted loop diluate and concentrated loop concentrate (brine).

Anion and cation exchange membranes are arranged alternately in parallel between an anode and a cathode (see the schematic diagram to the left).

Each type of membrane is permeable to only one type of ion so the combination of membranes allows both cations and anions to be removed.

Electrodialysis reversal in dairy

What is electrodialysis reversal

The electrodialysis reversal (EDR) is a type of electrodialysis process, when the DC polarity and the switching concentrating and diluting flow streams are periodicaly reversed which results in continuous self-cleaning. Thanks to the self-cleaning process the membranes have a much longer lifetime in the EDR stacks.

Electrodialysis batch system

Batch system

Pre-concentrated by-products are pumped from the first tank to the Feed/Diluate circuit for demineralization proces by the ED stacks.

Minerals removed from by-products go to the concentrate circuit and then to the concentrate tank.

When in the first tank (first batch) reaches the required conductivity the unit switches to the second tank. The first desalinated batch should be discharged and then the empty tank is supposed to be cleaned and after cleaning is ready to be fed with a new pre-concentrated by-product again.

Request a free quote for your ED demineralization project

Our experts are ready to answer your questions and find the best solution for your ED demineralization project.

Please, fill out the form below. We will reach out to you as soon as possible and look forward to working with you to find the best possible solution for your facility.

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