Can feline cat litter be used in the base of a Hugelkultur mound?


My cats use feline pine cat litter (pine pellets that break down slowly into sawdust). I’m wondering, if we separate out the feces, if it’s safe to use the sawdust that has some cat urine in it in the base of a Hugelkultur mound. Are there zoonotic diseases that we should be worried about? 


Rebecca Long, Sustainable Agriculture and Horticulture Professional

Unfortunately, due to the potential presence of toxoplasmosis, salmonella, and intestinal parasites, the litter is not safe to use even after the cat feces has been removed.