Nathan Cassity, PE, BCEE, a wastewater process engineer with over 15 years of experience, has joined Donohue & Associates in the Sheboygan office. Nathan has performed numerous evaluations and designs for wastewater facilities throughout the U.S.. His expertise includes primary and secondary treatment, nutrient removal, advanced treatment, disinfection, odor control, and biosolids handling, treatment, and disposal. He specializes in process modeling using BioWin and GPS-X.
Nathan is a licensed professional engineer in Wisconsin and Illinois and a Board Certified Environmental Engineer. He is an active member of the Water Environment Federation, Central States Water Environment Association, Wisconsin Wastewater Operators Association, American Academy of Environmental Engineers, and American Society of Civil Engineers.
Nathan was a presenter at the most recent Central States Water Environment Association's annual conference. His topic: Full-Scale Pilot Targeting Ultra-Low Phosphorus in Secondary Effluent at Janesville WPCF.