Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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How to make ferric chloride solution from its powder to apply in clarifier
2006
In my company (pulp & paper production), we got problem with our clarifier (first step).
All solid in wastewater settled in clarifier.
physical condition (temperature 60 oC, solid inlet 700-900 ppm)
we would like to apply ferric chloride
⇦ this on
eBay or
Amazon [affil links] to help setlling of solids in clarifier.
I don't now how to make solution ferric chloride
⇦ this on
eBay or
Amazon [affil links] .
if FeCl3 + H2O ---= Fe(OH)3 sediment
so, how to make solution without sediment formation and applicable in wastewater settling.
pulp & paper - Pelalawan, Riau, Indonesia
Dissolve the ferric chloride
⇦ this on
eBay or
Amazon [affil links] in acidic solution, e.g., dilute sulfuric acid.
You will get better dispersion by adding to the wastewater in an acidic stage (if present in your treatment). At higher pH, rapid stirring is necessary.
Acidic ferric chloride
⇦ this on
eBay or
Amazon [affil links] solutions are extremely corrosive, so plastic piping may be necessary.
- Goleta, California
Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.
2006
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