No cost, no registration, no passwords -- just aloha, fun & authoritative answers
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

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 sulphate ferrous sulphate [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

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.

2002




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"