![Mixing It Up](https://cole-tpomag.imgix.net/https%3A%2F%2Fwww.tpomag.com%2Fuploads%2Fimages%2Fhb-aerators-1.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=02fc5a1df5a39a7ac031bf7ba48f98b0)
Discharge from a textile plant in Monroeville, Ala., paid 90 percent of operating costs for the Hudson Branch Wastewater Treatment Plant. The 2 mgd (design) activated sludge extended aeration facility ran two 125 hp propeller-type aerators in its 11-foot-deep wastewater pond. Power...