The Robert W. Hite Treatment Facility in Denver, Colorado is owned and operated by Metro Wastewater Reclamation District. The facility has a total rate capacity of 832.7 ML/d (220 mgd) based on maximum month flows. Their North Complex was upgraded in 2012 and among other improvements included modifying the existing four (4) vortex grit basins and constructing two (2) additional vortex grit basins. Grit deposition in the primary clarifiers provided evidence that the vortex grit basins were not efficiently capturing grit. As a result, a physical model was developed during pre-design to test various improvements to increase the grit capture efficiency. The physical model provided recommended improvements that were implemented during construction. Grit testing was performed prior to the improvements to provide base line grit capture efficiency of the existing units. Finally, grit testing was performed after construction to document the grit capture efficiencies and determine if the improvements were effective.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.