Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

The authoritative public forum
for Metal Finishing since 1989
-----

40 cfr 433 passivation

It has recently come to my attention that my passivation process for SS is going to be classified as a categorical metal finisher under 40 CFR 433 and I am going to have to go through endless testing of my wastewater. Is there any way to get out of this situation..short of halting the passivation process.

Don Kingsley
- Chandler, Arizona, USA

You may want to consider converting to a zero discharge system.

Lyle Kirman
consultant - Cleveland Heights, Ohio

(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: