Since the wastewater treatment facility is located near a retirement community, the design of the plant had to be taken into consideration as well as the small land area, noise level of the equipment and potential odors.
The OMNIFLO® Sequencing Batch Reactor (SBR) replaced an existing lagoon and also needed to be designed for expansion to accommodate future growth in this community located in Sun Lakes, Arizona.
At the Pima Utility Wastewater Treatment Facility in Sun Lakes, Arizona, a three-tank OMNIFLO® Sequencing Batch Reactor (SBR) system with Jet Tech SBR technology from Evoqua has been installed. This SBR system replaced an existing lagoon that serves a growing retirement community south of Phoenix, Arizona.
At the Pima Utility Wastewater Treatment Facility in Sun Lakes, Arizona, a three-tank OMNIFLO® Sequencing Batch Reactor (SBR) system with Jet Tech SBR technology from Evoqua was installed to replace an existing lagoon to serve a growing retirement community south of Phoenix, Arizona.
The OMNIFLO SBR developed and manufactured by Evoqua is a fill-and-draw, non-steady state activated sludge process in which one or more reactor basins are filled with wastewater during a discrete time period, and then operated in a batch treatment mode. In a single reactor basin the SBR accomplishes equalization, aeration and clarification in a timed sequence. This wastewater treatment process produces a high-quality effluent with biological nutrient removal.
The engineering firm, Carollo Engineers, provided the planning, design, and construction of this facility to treat approximately 2.4 million gallons per day (MGD) of wastewater. Along with the SBR system this facility also includes screening, filtration, post equalization, and an ultraviolet disinfection system. The Pima Utilities facility was designed to produce high-quality effluent that is disinfected and has low turbidity and nitrogen levels.
The Sun Lake facility was also designed to meet Arizona Class A+ effluent quality, plus meet California’s Title 22 effluent standards. Since this wastewater plant is located near a retirement community, the final design had to take into consideration the small land area, the noise level of the equipment, and potential odors. The rectangular process basins were designed to be low profile and covered with the mechanical equipment housed in buildings below-grade to eliminate noise. The biosolids produced from this system are first treated by aerobic digestion, which provides stabilization and thickening of the waste sludge. Centrifuges then thicken and dewater the sludge for disposal in the local landfill.
Over 35 Years and 700 Installations & Counting
Evoqua's SBR systems with Jet Tech technology have helped municipalities and industries overcome wastewater challenges for over 35 years across 700 successful installations. Today, Evoqua's SBR systems are successfully treating wastewater in plants ranging from 0.01 MGD to 60 MGD. Evoqua's product experts provide process knowledge and expertise to deliver SBR systems that provide superior consistent performance, flexible design and simple operation under the most demanding wastewater treatment conditions.
