Improvements to the City’s wastewater treatment plant (WWTP) were performed to repair/replace inoperable or outdated equipment and parts, as well as assess underperforming systems. The City wished to utilize any new technology available to streamline processes, upgrade outdated systems and increase the treatment efficiency, performance and reliability. The City was open to the recommendations of the contractor on how to return the plant to modern working order while retaining the 0.6 MGD permit capacity. As the work progressed, the BRW maintained compliance with all EPD requirements and treatment capacities per the active NPDES Permit.
The work consisted of the repair or replacement of equipment and systems within the existing facility. A brief description of the major work components is as follows:
- Headworks:
- Comminutor – Assessed for proper maintenance and capacity; provided an action plan for the maintenance, repair or replacement.
- Grit Removal Facilities – Assessed and repaired/reconfigured as necessary.
- Sludge Pumping:
- Assessed sludge removal process, pumps, wall structures and repaired or replaced as necessary.
- Rotor Aerators:
- Assessed aerator configuration, motors, foundations, enclosures and orbal discs.
- Considered options of replacing the existing fixed rotor aerators with floating brushes and implemented best practices to rebuild, reconfigure and ultimately replace the rotor aerators.
- Clarifiers & Digesters:
- Assessed the clarifier sweep mounts and repaired or replaced as necessary.
- Assessed digester diffusers and equipment for repair or replacement as required.
This project required the coordination of multiple consulting professionals during the assessment phase as well as BRW manpower to complete the required repairs, replacements and enhancements. With a contract amount of $598,000, the project was completed on time and within the City’s budget bringing the plant back into peak operational efficiency.
