You won't believe how much soot this produces. I won't be doing it again!Put it in a open container and drop a match to it keep clear as it burns away .
It’d work a treat on my electric mower. Hate the damn thing with a passion!Your local recycling centre might be able take it.
I‘d probably mix it in at a low concentration or use it in the mower. (Doesn’t work if you have an electric mower…)