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Modified electrodialysis (MED) has been developed for obtaining
a more efficient breakup and density of ions in water solution
from a dilute process stream. This technique is specifically
designed for industrial metal ion containing waste solutions.
Industries across Europe are constantly faced with requirements
for optimised wastewater management. This includes less concentrated
limits for various pollutants. However, the methods wastewater
clean-up companies currently use are falling short. The focus
for environmental regulation has shifted away from emission
reduction and towards a combination of Modified Electrodialysis
(MED) and 3-dimensional cathode cells. This is for the prevention
of metal waste from industrial effluents in order to reach
zero discharge.
The way it works is that an ion exchange resin is integrated
into the feed section to increase the transport of the metal
ions relative to protons. This, in turn, improves the current
efficiency at low concentrations as compared to conventional
electrodialysis. Laboratory trials have proven successful
showing the capability of the techniques on a small scale.
Furthermore, a pilot plant has been designed - integrating
the 3D cathode unit and an ITP sensor. The pilot plant has
been approved on industrial user sites in Belgium and is going
through industrial trials.
For further information, contact -
John Collins
Project Manager
C-Tech Innovation Ltd
Capenhurst CH1 6EH
Chester
Tel: +44-151-3472922
Fax: +44-151-3472901
Email: Contact
Web: http://www.capenhurst.com
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