Convential Demineralizers have been a mainstay design of Ecodyne Water for over 40 years. Applications include boiler feedwater, condensate polishing, brine decalcification, brackish water softening, oil flood produced water softening and specialized ion exchange applications such as metallurgical solutions and waste treatment. Options include weak and strong resin columns, layered beds and mixed beds.

CoCurrent Downflow Service & Regeneration

This is the basic demineralizer and covers a wide variety of applications. In some instances this process is the most suitable where enhanced regeneration techniques offer no capital or chemical cost savings such as stand-alone, weak resin columns. These units are backwashed, in place, every regeneration. Water quality from a 2-bed system is typically <10 microsiemen per centimeter and regeneration chemical requirements are > 300%.

CounterCurrent Downflow Service/Upflow Regeneration - Air Block CCR

Ecodyne installed the first Air Block CCR system in North America in 1970. Low pressure oil free plant air is used to hold the resin bed in place during upflow regeneration. Low pressure oill free plant air is used to hold the resin bed in place during upflow regeneration. A variant of this enhanced regeneration technique has been adopted by every major equipment manufacturer in North America with one notable exception. Other manufacturers use water block or split flow. Water block has the disadvantage of additional water for the blocking flow and extra load on the neutralizing system. Split flow directs a portion of the regenerant chemical to the top of the bed and a portion to the bottom of the bed, where its collected near the middle of the bed. With air block no additional water is wasted and 100% of the regenerant chemicals goes through the bottom polishing resin zone. CCR units require backwashing every 20-30 cycles. Water quality is typically <2microsiemens per centimeter and regeneration chemical requirements are > 200%.

Mixed Beds

Designs include Working, Polishing and High Rate Deep Bed Mixed Beds for boiler feedwater and condensate polishing. Regeneration includes in-place and external regeneration. External regeneration can include special resin separation and regeneration techniques.