Developing innovative approaches to wastewater challenges is essential. HR Green delivers sustainable, effective solutions that help communities improve performance, increase resilience, and prepare for the future. Learn how we support utilities through our Municipal + Utility Wastewater Services and help facilities implement reliable, cost-effective infrastructure improvements.

If you’re attending the Conference, join us for an inside look at two biosolids improvement projects at the Des Moines Metropolitan WRA and Marshalltown Water Pollution Control Plant. We’ll discuss strategies for increasing capacity, replacing aging equipment, and maintaining critical operations during construction. For additional insight, explore our blog on Navigating Biosolids Management and our perspective on improving wastewater efficiency through energy and chemical optimization.

Tuesday, October 13, 2026
12:30 PM CST

Case Study – Rotary Drum Thickener (RDT) Installations. Erik Rasmussen, PE will present an inside look at biosolids improvement projects at the Des Moines Metropolitan Wastewater Reclamation Authority (WRA) and Marshalltown Water Pollutionnd implementation, key operational considerations, and the collaborative approach used to increase capacity while maintaining ongoing plant operations during construction.