The Desel System – Capacitive Deionization for the Removal of Ions From Water

Authors: Seed, Leonard P.; Yetman, Daren D.; Pargaru, Yuri; Shelp, Gene S.

Source: Proceedings of the Water Environment Federation, WEFTEC 2006: Session 81 through Session 94 , pp. 7172-7180(9)

Publisher: Water Environment Federation

Buy & download fulltext article:


Price: $17.50 plus tax (Refund Policy)


Capacitive deionization (CDI) represents a new approach to the treatment of a variety of water/wastewater streams contaminated with inorganic compounds. ENPAR Technologies Inc. of Canada has developed its DesEL System, which combines high water recoveries with high ion removal efficiencies. The system operates on the principle of capacitive deionization to remove ionic compounds referred to as total dissolved solids (TDS). The results of several bench and pilot tests of capacitive deionization systems are presented. In addition to the removal of general TDS, the system can be configured to preferentially remove monovalent ions. This alternative approach has been used to selectively remove nitrate from groundwater with only minor reductions in overall TDS. Pilot testing of the DesEL system has been conducted on groundwater containing high arsenic levels (0.210 to 0.820 mg/L). The DesEL system was effective at removing the As from the groundwater stream to less than the detection limit of 0.005 mg/L. The DesEL system has proven to be an effective technology for a variety of water and wastewater treatment applications.

Document Type: Research Article


Publication date: January 1, 2006

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites



Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content

Text size:

A | A | A | A
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages. print icon Print this page