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Continuous EDI

Carbon Block

Electrodeionization (EDI) is the process of removing ionized or ionizable substances from water using ion exchange membranes, electrically active media (typically ion exchange resin), and DC  electric  potential.  EDI  is  used  with  reverse  osmosis,  which  is  an  advanced environmental  friendly  technology  on conventional  mixed  bed  ion  exchange  making  the process chemical-free to produce up to 18megohm-cm high purity deionized water.  

Technical Information

The benefits and advantages of using Puretec EDI compared to the traditional ion exchange process are:  

  • Operates continuously, no downtime for regenerations 
  • Eliminates regeneration chemicals 
  • Reduces energy, operating and maintenance expenses 
  • Minimizes space requirement 
  • Enables a simpler system (no concentrate recirculation) and fully shop assembled on skids to minimize site work

Feed Water Requirement

EDI Parameters

Stock Models

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