The system produces its own heat. In cold climates, it is also used to heat the barns in winter. The system produces its own electricity. What is left is both solid and liquid waste. The solid waste is dried and used for animal bedding and the liquid is a high quality low odor fertilizer sprayed on fields.
Basically what this does is keep pollutants, like bacteria, out of the water system, turn a liability into an asset, and make farmers more independent. How could that be bad?