B695 Tank Farm Revitalization-Design-Build

The B695 Tank Farm Revitalization project aims to upgrade the wastewater treatment system at Lawrence Livermore National Laboratory. The project includes the design, demolition, and installation of five chemical reagent dosing systems, the removal and replacement of nine tank mixer assemblies, and the design and installation of nine coarse bubble diffusers. The goal is to improve operational efficiency, enhance safety, and ensure continued compliance with regulatory requirements. The project has a base scope and an optional scope, which includes the installation of new instrumentation. Key aspects of the project include: • Reagent dosing system: a centralized system to dose 5 different reagents into nine 5,000-gallon treatment tanks • Tank mixers: replacement of nine tank mixer assemblies with new ones capable of thoroughly mixing the 5,000-gallon tank in 10 minutes • Coarse bubble diffusers: installation of nine diffusers to aerate the liquid with 60 scfm per tank • Optional instrumentation: installation of new instrumentation, including pH/ORP, conductivity, oxygen, TSS, and liquid level sensors on each tank