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Ted Mooney, P.E. RET
Pine Beach, NJ
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for Metal Finishing since 1989
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Sulfite problem in treatment process
We have a sulfite problem in our wastewater treatment discharge. Is there a simple and fast method to oxidize sulfite to sulphate in our treatment system?(I use hydrogen peroxide but it is not enough. Is there a way to speed the oxidation rate with a catalyst?)
Tekin Ertan- Ankara, TURKEY
2002
Iron+2 (e.g., ferrous sulfate ⇦this on eBay or Amazon [affil links] ) is commonly added as a catalyst to hydrogen peroxide to create Fenton's Reagent. For details and to determine suitability, consult http://www.h2o2.com/applications/industrialwastewater/fentonsreagent.html Sodium hypochlorite is generally a faster, less expensive oxidizer. It is used at neutral to high pH, while Fenton's Reagent is used under somewhat acidic conditions (pH 3-5).
Ken Vlach [deceased]- 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.
2002
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