![Making the Best of It](https://cole-tpomag.imgix.net/https%3A%2F%2Fwww.tpomag.com%2Fuploads%2Fimages%2Fdscn1169.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=1361711768db4f91d45dccff360f7dd2)
The 91st Avenue Wastewater Treatment Plant in Phoenix, Ariz., has a simple mission: meet permits; reduce chemical, energy, and biosolids costs; automate where practical; and innovate. Despite the lack of any large capital projects, the plant has achieved big savings, says assistant...