Where does all the humans fecal matter go???

Question

I'm talking about human waste. If they go to the sewer, don't the sewer get full???? What happens to the feces? Do they disintegrate themselves?

And also, can you track a specific person's feces...dna or something?

Pls, I need answers.

Answer 1

Yes, they disintegrate. At sewage works.
After the smell, you are left with lots of nitrate rich by-product.

If it came from cattle, you could put it on your vegetable patch. However, hygiene rule mean that human waste is usually just dumped in the ocean, causing blooms of toxic blue-green algae.