It is not recommended to scrap DOCs or DPFs. In Title 22, CCR, Chapter 23, “scrap metal” is defined to EXCLUDE “any metal contaminated with a hazardous waste, such that the contaminated metal exhibits any characteristic of a hazardous waste under article 3 of chapter 11 of this division.” Zinc is listed as a hazardous waste under article 3 of chapter 11. Therefore, used DPFs and DOCs should not be treated as scrap metal to be recycled with a scrap metal recycler. Contact Red Fox for information on determining if your DPFs and DOCs need to be treated as hazardous waste.
Also, recycling DPFs and DOCs for precious metals reclamation can provide up to 100 times the monetary value as processing them as scrap metal.