Project Overview
The Des Moines Wastewater Reclamation Facility (WRF) is a 97 MGD plant that processes approximately 5,500 dry tons of WAS annually at about 7.1% TS.  The plant is looking for ways to increase biogas production, decrease energy consumption and reduce residuals disposal costs, and has decided to trial MicroSludge to achieve these goals.

In November 2007, a MicroSludge System 25 became operational at the Des Moines WRF. The system is comprised of a central processing skid and two cell disrupters and will process approximately half of the WAS generated at the plant.



Des Moines WRF operates six anaerobic digesters, arranged as three modules, each with two digesters. The digesters are fed a mixture of trucked liquid waste (restaurant waste, oil & grease, slaughterhouse waste, and food processing waste), primary sludge and WAS. The MicroSludge system will feed processed WAS to one of these two-digester modules.



WERF Projects
The MicroSludge Des Moines trial will also be part of three important WERF studies.

• The Evaluation of Processes to Reduce Activated Sludge Solids Generation and Disposal, Julian Sandino, CH2M Hill
• Odor Study, John Novak, Virginia Tech
• Reactivation and Re-Growth of Pathogen Indicators, Matt Higgins, Bucknell University

If you are interested in visiting the Des Moines demonstration, please contact us at: sales@microsludge.com