I was interested in the same question, but unfortunately at the moment there is not a single working installation of PRT-2 created so that you can see the process of work on an example.
How it works theoretically can be learned from White Paper and video from the founder of the project.
Here I am a little bit confused that there is no working plant for waste processing. After all, you could create some small copy or otherwise come up with how to demonstrate technology to potential investors.