Southeast Plant Biosolids Digester Facilities

With a vision for a world-class biosolids system that produces a Class A biosolids product, the San Francisco Public Utilities Commission selected the Brown and Caldwell-led team to lead the Southeast Plant Biosolids Digester Facilities planning and design. This $1.3 billion capital investment will replace all biosolids processes with reliable, seismic-resilient, efficient, and modern technologies and facilities, including thermal hydrolysis pretreatment, anaerobic digesters, solids dewatering, solids thickening, odor control, and energy recovery facilities. The new facilities will become an asset to the community—promoting reuse, sustainability, and economic and environmental benefits.