I think your question is more "Can I use Zeolite in my garden"? Zeolite is essentially processed lava rock and as such does not break down in a compost situation. However, it is used as a soil amendment paricularly for use in heavy soils like clay. It contains some 50 minerals including potassium.Do you you compost the PDZ poop?
I love the stuff also!
Bottom line is you can use it in your garden without issue,