PPT Slide
Why Hasnt EDI Worked Before? Cons & Pros.
Issue:
Vendors Consensus:
Recycle view:
Feed stream contents
Conductivity too high/low
To Be Determined (TBD)
Conductivity too variable
Variable, but 'too' is
subjective. TBD
Unknown components
Known components-
unlike city water
Concentrate stream conductivity
Too high--will deposit scale
Won't scale--no cations
except ammonium ion,
unlike city water.
pH too low
TBD
Organics
Too many
Virtually none, unlike
city water.
Iron contamination
EDI very sensitive
No Iron in our fab water!
Hydrogen Peroxide
Sensitive--must avoid
Removed in Carbon Bed.
COO
Should be OK
Should be impressive!
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