Sludge. It’s really not a glamorous topic. But on the other hand, any farmer can tell you it’s the earthy things that are the most fertile.
The city’s wastewater department is doing good things with sludge.
Used to be, the sludge by-product of our wastewater treatment system was wet, and heavy, and city employees were hauling it out to the airport by semi truck to dump it, 12 to 20 times a week.