It will definitely do that!
Biochar has the ability of removing heavy metal contaminates.
Frontiers | Biochar as a tool for the improvement of soil and environment
Biochar is a versatile and sustainable tool for agricultural and environmental remediation due to its unique physicochemical properties in terms of soil fert...www.frontiersin.org
I wish I could make biochar like I did on the farm. I could probably make a decent run, but I would only have pine to work with. I have an aversion to using Pine as biochar. Pretty sure that's just because of Smoking meats background.
I do have a big burn that I need to do! Probably to be safe, that might need to be two or three burns. That's unless I want to call up the volunteer fire department and buy a bunch of beer.
If I could find four or 5 good 5 gallon cans come on I'd probably go ahead and do that.