Yup, I understand two pounds of Spinich have enough PO to kill a person, but it apparently causes no harm for regular disposal.
Just one more reason I won't eat the stuff.
I've discussed metals reclaimation with Bostick and Sullivan, and they generally state that the amounts are in such low concentration in the clearing baths to make it very difficult to make a meaningful reclaimation process.
My impression is that the silver in the film and papers are easily reclaimed and in quantities that it is done (and mandated in many areas), but that is not the case with pt/pd.
Jorge can correct me if I'm wrong, but since they are noble metals, they pose no risk for humans or environmental impact if they are released in small quantities? That's always been my understanding, but I may have it wrong.