OUR WORK

 
 
 

Oceanside Treatment Plant in San Francisco, CA.

 

Since our formation in 2004, the Bay Area Biosolids Coalition has championed a variety of projects — from advocacy and research to biosolids use and emerging technology evaluation. 

Initially named the Bay Area Biosolids to Energy project, our early work focused primarily on the use of biosolids to generate renewable energy. Now our priorities are expanding to focus on land application and explore more climate friendly, cost effective, socially conscious, and reliable solutions for biosolids management. Some of our recent achievements include:

 

Advocacy

In partnership with the Bay Area Clean Water Agencies and the California Association of Sanitation Agencies, the Bay Area Biosolids Coalition represents members in national, state, and regional legislative and regulatory discussions. 

Research

Beginning in 2017, the Coalition researched the potential for carbon sequestration from biosolids application in California agricultural ecosystems. We partnered with the University of California Merced and Dr. Rebecca Ryals to examine three ranches in Sacramento, Solano, and Merced counties that have been land applying biosolids for over 20 years. A total of 900 soil samples were collected to understand carbon and nitrogen stability, and study additional factors that control the rates of carbon sequestration. 

Biosolids Use and Market Development

Coalition members are partnering to identify and develop all-weather solutions for biosolids management. Our goal is to realize the highest use of carbon and nutrients in biosolids. The Lystek facility at Fairfield-Suisun is an example of a successful public-private partnership producing a liquid fertilizer from biosolids. Learn more about the project.

 

Engine-driven blowers inside the building supply air used for the secondary treatment process at the San José-Santa Clara Regional Wastewater Facility.

Sundried biosolids are stockpiled after being in drying beds for approximately six months at the San José-Santa Clara Regional Wastewater Facility.