I work at a wastewater treatment plant. Used to work in the liquid treatment division which is exactly what it sounds like. I've moved on to the Solid treatment division which consists of taking liquid sludge and making it dry sludge and then burning it. It stinks, the hours are bad but being paid more than I ever thought I would be without going to college and retirement at 55 make it worth it.
When I was in college I worked for Middlesex County Utilities Authority, where they turned all the dry stuff into a soil additive called Meadow Life. I was young and a partier, nothing like the smell of raw sewage, ammonia, empty primary tanks, etc., to make that pork roll and cheese come right back up uke: