11 bins of rats a week, all that aspen goes out to mulch my yard. Believe it or not, there isn't any real smell once it's dries, and when it rains, I don't notice an odor. Of course, I'm spreading it along the woods side first, but so far it's working great.
I have a few people who have expressed an interest in taking it for real mulch for composting, but not interested enough to come get it(they want it delivered!!)
Burning might give you some very rich ashes for a compost pile too.
Wolfy