Austin’s “Dillo Dirt” is made from yard waste and treated human sewage. Less-treated sewage gets used to fertilize ranchland. As you suspected, there’s more than a little controversy over whether the result is well-composted enough for health and aesthetics, but it’s mixed up with concern over the standards for various non-fecal pollutants. Presumably whatever closed loop fertilization trist is advocating wouldn’t have to worry so much about the various kinds of industrial and medical waste people dump down their drains.
Austin’s “Dillo Dirt” is made from yard waste and treated human sewage. Less-treated sewage gets used to fertilize ranchland. As you suspected, there’s more than a little controversy over whether the result is well-composted enough for health and aesthetics, but it’s mixed up with concern over the standards for various non-fecal pollutants. Presumably whatever closed loop fertilization trist is advocating wouldn’t have to worry so much about the various kinds of industrial and medical waste people dump down their drains.