- pH Neutralization
Our team provided engineering, procurement support and construction support services to address acidic conditions by injecting caustic solution in Units 1 and 2 bottom ash hopper overflow tanks installed in the Power Building.
Duke observed low pH events associated with closed loop bottom ash systems and requested design of a caustic pH neutralization system at its Cayuga Station. The pH adjustment systems included a bulk caustic storage tank, chemical feed system, control system and chemical feed enclosure.
We performed detailed design services and generated multiple procurement packages to procure the caustic tank, caustic feed system, chemical feed building and electrical equipment required for proper operation of the system. We also developed a construction package for installation and provided technical evaluation of the bid responses. A field engineer was on-site during installation with further construction support provided from the office.
This project required a thorough understanding of the system operating parameters to understand how to effectively dose the caustic to neutralize the closed loop system pH levels. The project team worked closely with Duke staff to define the system design parameters and develop a comprehensive solution that fully addressed the station’s needs.
- Engineering and design
- Procurement and installation package development
- Technical bid evaluation support
- Technical submittal review
- Field engineering and construction support