Client:
City of Sheldon
Sheldon, IA
Key Features:
- New continuous flow sequencing batch reactor (SBR) wastewater treatment facility
- Pretreatment including mechanical bar screen and non-mechanical grit removal
- UV disinfection
- 3 million gallons of waste treated daily
- 1,000 kW backup generator
- Automated systems
- New outfall and discharge location
Key Experience:
- Maintaining the use of the existing facility during construction of the new one
- Cooperation with existing business and residences that would be affected by the location of the new facility
Wastewater Treatment Facility (SBR)
DGR Engineering (DGR) worked jointly with the City to evaluate multiple treatment alternatives which included updating the existing wastewater treatment plant. Ultimately, the selection of sequencing batch reactor (SBR) was made, based on cost, operational flexibility and convenience. The option of modernizing the existing plant was rejected because the cost would have been nearly double that of a new facility.
The new plant, rated for 5.3 million gallons per day (MGD) peak day, doubles the capacity of its predecessor. It is adequate for future population growth as well as economical development with industrial growth potential.
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Wastewater Treatment Facility (SBR)
The City ultimately determined a flow-through style SBR system to be the preferred choice based on the selection criteria and the ability to meet anticipated permit limits.
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Site Development
Planning started with site plan design for the new facility to offer maximum exposure to traffic on Highway 75.
Rock Rapids, IA
Wastewater Treatment Facility (SBR)
The new plant, rated for 5.3 million gallons per day (MGD) peak day, doubles the capacity of its predecessor.
Sheldon, IA
Lift Station, Control Panel and Valve Vault
The SE Sanitary Sewer Extension project provided sanitary sewer service to a previously un-serviced area southeast of Dell Rapids, SD.
Dell Rapids, SD
Wastewater Treatment Facility (SBR)
The new SBR system utilizes the existing aeration lagoon for equalization and another lagoon cell for sludge storage, which reduced the cost of the project for the City and provided more operational flexibility.
Dell Rapids, SD
Lift Station, Control Panel, Valve Vault
The SE Sanitary Sewer Extension project provided sanitary sewer service to a previously un-serviced area southeast of Dell Rapids, SD
Dell Rapids, SD