John Lande remembers a time when he AND his staff didn’t enjoy going to work. In the late 1990s, a new permit imposed chlorine, ammonia and metals limits on the City of Monroe (Wash.) Wastewater Treatment Plant that the fixed-film rotating biological contactor (RBC) process just couldn’t meet.
For a few years, until completion of a new activated sludge process in 2002, work life was a daily struggle to get into compliance.
“We tried all kinds of ideas and all kinds of methods,” says Lande, plant manager and a Class IV operator. “And although those efforts did make things better, they weren’t
