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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 [on eBay or Amazon] to help setlling of solids in clarifier.
I don't now how to make solution ferric chloride [on eBay or Amazon].
if FeCl3 + H2O ---= Fe(OH)3 sediment

so, how to make solution without sediment formation and applicable in wastewater settling.

Zulfikar Azmi
pulp & paper - Pelalawan, Riau, Indonesia



Dissolve the ferric chloride[on eBay or Amazon]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[on eBay or Amazon]solutions are extremely corrosive, so plastic piping may be necessary.

Ken Vlach [deceased]
- Goleta, California

contributor of the year 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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