Are there any disposal issues with the spent ORC?
No. The ORC powder, if injected into the aquifer for plume treatment, remains in place after treatment, becoming an innocuous part of the soil matrix. In the Filter Sock form, the socks are not considered a hazardous waste unless perhaps they have been allowed to absorb large amounts of phase separated chemicals. Thus, if used properly, the socks can simply be disposed of as non-hazardous waste.
