Wastewater Treatment Plant
Adel, IA
The City of Adel, Iowa, has experienced substantial growth in population over the past decade. As a result, the City’s existing aerated wastewater lagoon was insufficient to meet the community’s growing needs.
McClure was hired to develop a comprehensive facility plan to meet the existing and future demands of the community. Through the planning process, it was determined to proceed with the design and construction of a 3.5 MGD Sequential Batch Reactor (SBR) facility. Of specific importance to the Owner, the new facility SBR is capable of being expanded to 7.0 MGD within the existing land area footprint. With the small footprint of the SBR system, the facility was able to be constructed on the same site as the existing wastewater lagoons.
The final design was completed, approved, and bid for construction in 2020 and construction was completed in 2023. The final project included the re-use and conversion of the existing lagoons for sludge storage and flow equalization. The new facility achieves regulatory compliance and provides capacity for growth, but also achieves nutrient removal goals for Total Nitrogen and Total Phosphorous.
In a separate project, which will be completed in late 2025, a new Laboratory and Administration Building will be constructed to provide operations and administrative space for City staff and operators.
ANOTHER DESCRIPTION:
The City of Adel operates an aerated lagoon wastewater treatment facility which was constructed in 1988. Due to its proximity to the Des Moines Metropolitan Area, the City is experiencing significant residential and commercial growth of the community. As a result, flows of the system have increased and new regulatory requirements are being imposed upon the City, including nutrient reduction.
The City of Adel retained McClure to evaluate their wastewater treatment system. Through this evaluation, it was determined the existing system could not achieve compliance with the newly imposed permit requirements. Working with City staff, McClure evaluated multiple treatment alternatives capable of achieving compliance with new standards. Of significant importance was the ability to provide a treatment solution which could be easily expanded to accommodate the significant growth anticipated for the City. Through this evaluation, it was identified a Sequencing Batch Reactor (SBR) treatment system provided the most cost-effective long-term compliance solution.
In addition, components of the existing lagoon treatment system were evaluated for reuse in the proposed treatment system process. Plans are to utilize the existing lagoon basins for flow equalization and sludge storage, saving the city millions of dollars in construction costs. In addition, McClure completed coordination with all regulatory (DNR, USACE, etc.) and financing agencies (CWSRF and USDA-RD).
McClure was hired to develop a comprehensive facility plan to meet the existing and future demands of the community. Through the planning process, it was determined to proceed with the design and construction of a 3.5 MGD Sequential Batch Reactor (SBR) facility. Of specific importance to the Owner, the new facility SBR is capable of being expanded to 7.0 MGD within the existing land area footprint. With the small footprint of the SBR system, the facility was able to be constructed on the same site as the existing wastewater lagoons.
The final design was completed, approved, and bid for construction in 2020 and construction was completed in 2023. The final project included the re-use and conversion of the existing lagoons for sludge storage and flow equalization. The new facility achieves regulatory compliance and provides capacity for growth, but also achieves nutrient removal goals for Total Nitrogen and Total Phosphorous.
In a separate project, which will be completed in late 2025, a new Laboratory and Administration Building will be constructed to provide operations and administrative space for City staff and operators.
ANOTHER DESCRIPTION:
The City of Adel operates an aerated lagoon wastewater treatment facility which was constructed in 1988. Due to its proximity to the Des Moines Metropolitan Area, the City is experiencing significant residential and commercial growth of the community. As a result, flows of the system have increased and new regulatory requirements are being imposed upon the City, including nutrient reduction.
The City of Adel retained McClure to evaluate their wastewater treatment system. Through this evaluation, it was determined the existing system could not achieve compliance with the newly imposed permit requirements. Working with City staff, McClure evaluated multiple treatment alternatives capable of achieving compliance with new standards. Of significant importance was the ability to provide a treatment solution which could be easily expanded to accommodate the significant growth anticipated for the City. Through this evaluation, it was identified a Sequencing Batch Reactor (SBR) treatment system provided the most cost-effective long-term compliance solution.
In addition, components of the existing lagoon treatment system were evaluated for reuse in the proposed treatment system process. Plans are to utilize the existing lagoon basins for flow equalization and sludge storage, saving the city millions of dollars in construction costs. In addition, McClure completed coordination with all regulatory (DNR, USACE, etc.) and financing agencies (CWSRF and USDA-RD).
Highlights
- Secured a $4.655M grant reducing estimated total project cost to $10.88M
- Proposed SBR treatment system with ability modularly increase capacity for future growth
- Reuse of existing lagoon system for flow equalization and sludge storage saving thousands
- Proposed improvements achieve regulatory compliance
- Ability to achieve Nutrient Removal requirements through final project build-out
Discipline
Water
Project Type
Wastewater Treatment Plant
Client
City of Adel, IA
