I'd make an enquiry with one of the commercial disposal companies - it may be that the cost will be sufficiently reasonable to be worth it for you.
You may wish to list what you have here. Some of the bottles might still be usable.
They are the complete color C-41 processing kit. The main developer has turned black and flaky. Not sure if the fixed is still good.
CN-41/TL-50 Film Developer Starter (bottle)
TL-50 Developer Replenisher Kit
Trelux-23 Bleach Replenisher
Trelux CN-41 Film Fixer Replenisher
ColorPAC RA Processing Kits
TriPhase RA Developer Replenisher (bottle)
Universal RA Bleach-Fixer
ColorPAC RA Bleach-Fixer (bottle)
Trelux Developer Starter
CN-41 Developer Replenisher kit
CN-41 Developer Replenisher Part A
CN-41 Developer Replenisher Part B&C
CN-41 HRR Developer Replenisher Kit
CN-41 Developer Replenisher Kit
CN-41 Developer Replenisher Kit
CN-41 filmPAC
CN-41 Bleach III Starter
CN-41 RA Bleach
Universal Bleach
CN-41 Fixer
Trelux ELF Stabilizer & Replenisher