No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

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

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

HCN gas production with chlorine addition

2001

I am trying to develop a small scale system to reduce levels of cyanide in waste water from ~200 ppb to less than 50 ppb. I have found in my research that chlorine addition to remove cyanide, if not alkaline, can produce HCN gas.

My questions: is a 200 ppb level in the water a concern for gas cyanide gas production? Do other processes such as aeration cause this release of HCN gas or is it limited to chlorine?

Thanks,

Matt Vick
- Marion, Illinois, USA

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

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: