EnglishGermanPortugueseSpanish

Electrodialysis Reversal Equipment for Organic Liquid


ERE for Organic Liquid 01 ERE for Organic Liquid 02 ERE for Organic Liquid 03

RALEX® EWDU P15
Application
Electrodialysis medium capacity unit for demineralization of various types of whey and for other dairy applications.

Description
Compact autonomous processing unit with control system for operating and control of process parameters. Capacity modification with one or tw o electrodialysis stacks EDR-II. Operating in batch mode .

Capacity
Upon customer’s request. Achievable rate of demineralization 50%, 70% and 90%.

Approximate Dimensions
Length × Width × Height
  • 5.0 m × 1.2 m × 2.4 m arrangement with one electrodialysis stack
  • 6.7 m × 1.2 m × 2.4 m arrangement with two electrodialysis stacks
Dimensions do not include ser vice space around technology.

Structure
  • Switch board with electro parts and DC rectifier
  • Switch board with touch screen and transmitters from sensors
  • CIP chemical storage, concentrate and electrode solution tanks
  • Actuated reversal valves
  • EDR-II electrodialysis stack
  • Safety filters
  • Centrifugal pumps – feed, concentrate, electrode solution
  • Heat exchanger

RALEX® ElpU ED-II
Application
Industrial scale unit for purification of organic matters and for other special applications of electrodialysis

Description
Autonomous processing unit with control system for operating and control of process parameters. Capacity
modification from two to six electrodialysis stacks. Automatic chemical CIP. Operating in batch mode.

Capacity
Upon customer’s request. Achievable rate of demineralization 50%, 70% and 90%.

Approximate Dimensions
length × width × height
  • 6.0 m × 3.3 m × 4.2 m (arrangement with two electrodialysis stacks)
  • 7.7 m × 3.3 m × 4.2 m (arrangement with three electrodialysis stacks)
  • 6.0 m × 5.3 m × 4.2 m (arrangement with four electrodialysis stacks)
  • 7.7 m × 5.3 m × 4.2 m (arrangement with six electrodialysis stacks)
Dimensions not include: DC boards, control PC and ser vice space around technology.

Structure
  • Switch board with touch screen and transmitters from sensors
  • Pump section – feed, concentrate and electrolyte pumps
  • Safety feed and safety electrode solution filters
  • Heat exchangers
  • Chemical dosing tanks
  • ED-II electrodialysis stacks
  • Electrolyte tank - PP
  • Concentrate tank - PP

Electrodiaylsis Reversal (EDR) Equipment For De-ashing / De salting or Purification of organic solutions :
These applications for which we offers a modular system of electrodialysis units RALEX@ELPU remove salts and by-products from high value organic solutions (L- carnitine, thymidine, etc.). The input raw solution for the electrodialysis is a mixture of the product required, mineral waste (salts, acids, hydroxides) and diverse by-products. After electrodialysis procedure the purified solution is usually let to the evaporation and crystallisation unit to get the final solid phase
  • Product : Aspartame (Remove salt from the Orgainc)
  • Sugar
  • Product : Betain
  • Product : Soybean oligosaccharides
  • Product : Amino acid
  • Product : Threonine
  • Product : six carbon carbohydrate, MW182
  • Fermented Biotech
  • L-carnitine (LC)
  • Butyrobetaine (BB)
  • Dihydroxyacetone (DHA)
  • Thymidine (H)
  • Acid-amide separation of DMCPA
    (4-methyl-2,5-methoxyphenylcyclopropylamine)

Production of organic acids
MEGA has experience with implementations of the electrodialysis as follows:
  • Lactic acid
  • Citric acid, wine acid , acrylic acid
  • Purifiction of sodium terephtalate

Solution
The electrodialysis technology was chosen due to the high efficient separation and purification abilities with low operation cost. Also the product loses are relatively low and the lost product recovery is possible. The scale-up procedure was performed - from lab experiments to pilot trials and use tests in industrial size. Other demineralization techniques as ion-exchange were also investigated, but they were not so successful. The typical electrodialysis mode is batch. The fundamental advantage is in flexibility of process control allowing to obtain wanted product quality. The CIP is incorporated to keep the stable operation capacity and also to reduce any biological contamination. The whole electrodialysis equipment and process is certified under GMP (Good Manufacturing Practice) quality system. The apparatus are vertically arranged (the membrane stacks – electrodialysers above hydraulic periphery – tanks & pumps) to allow easy and perfect gravity discharge and also to use available space (footprint) efficiently. The electrodialysis layout is so very compact.