Version Info

• Minecraft, 1.20.1
• Trash Cans, trashcans-1.0.18a-forge-mc1.20
• Mekanism-1.20.1-10.4.10.66
• MekanismGenerators-1.20.1-10.4.10.66
• Core lib, ...

Description of the Bug
Trash cans cant comprehead spent nuclear waste from mekasim, while other liquids/gasses can.
Steps to Reproduce

Screenshots

Nuclear waste is specifically not voided as that is a design decision by Mekanism. If you do want to void nuclear waste with the trash can, you enable it in the config file for Trash Cans.

Today I had the displeasure of having to make a Mekanism reactor. I also found out that this mod SPECIFICALLY makes it to where it doesn't void Mekanism nuclear waste. I understand your reasoning of wanting to preserve that ideology, but consider the kitchen sink. The creator of that mod doesn't specifically go out of their way to make it to where you can't pump infinite water out of it which is arguably more broken than just deleting anything instantly. I'd argue that it's out of the scope of this mod to whitelist things that can't be deleted. Players should be allowed to play the way they want to by default and it should be up to the modpack creator on whether or not they care to balance it like that.

It is specifically integration with another mod. This works great for kitchen sink packs as it integrates with Mekanism and prevents bypassing major mechanics in that mod without any configuration needed.

Again, if you want to bypass Mekanism and void nuclear waste, just toggle the config option.
(Closing the issue as I think I just forgot to close with my original reply)