This year's slate of education seminars at the Water & Wastewater Equipment, Treatment & Transport Show (WWETT) wrapped up Wednesday morning.One session, led by Denver Stutler, CEO of Florida-based Polston Applied Technologies, addressed the waste of wastewater treatment. Not the biological waste, however, which is meant to be part of the treatment process. Stutler focused on material that finds its way into a plant and remains there (i.e. sand and grit), and eventually cuts into treatment capacity and affects the biological process.“If you don’t appreciate the problem of sand in a wastewater treatment plant, put a grain of sand in
