Originally posted by Wheatfield ID-11 or D-76 are both excellent developers. Neither one has anything that is particularly toxic. If you have an automatic dishwasher you are pouring more toxic chemistry down your drain every time you do the dishes.
For that matter the ever popular antibacterial soaps and detergents are more harmful than D-76.
Actually, you don't have to buy the seriously-nasty dishwasher soap, either. (We get some eco-friendly stuff that works fine here already. ) Though it does point out the matter of scale: if you use a dishwasher, you're better off making a change there and dumping your occasional tank of developer than continuing to use the nastier stuff all the time and driving around looking for a place to dump developer just cause it came labeled 'Chemicals.'
Fixer usually is the worst of it, though, it's where the metals end up. Places with silver reclamation will sometimes be glad to take it, though. Or so I hear. Also there are sometimes municipal facilities for household chemicals. I have no idea what they do with that, though.