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

Where the
world gathers for metal finishing
Q&As since 1989

-----

ORP values for treating waste water

Could someone share specific information on using instruments such as orp meter to regulate oxidation of specific metals in waste water. Water contains ferrous salts in the range of 7000 ppm and we need to control additon of oxidizer. Also may encounter other metals.

James Chunn
- Theodore, Alabama
1998

I know that Orion Research has several instruments and electrodes that measure ORP/pH/temp. One particular instrument (250A+) can be calibrated to the SHE, with a standard.

Don Campbell
- League City, Texas
2000

(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: