Maximizing Energy Efficiency and Reducing Bio-solids Waste from New Anaerobic Wastewater Treatment Technology
New anerobic biological treatment technology eliminates aeration step and reduces biosolids disposal to save energy
In October 2020 the reactor, biogas holdup tank, and piping were installed and the system is operational. In December the team won funding opportunities from USBR and the Water Board to begin investigations on the second phase of the SAF-MBR technology to treat potable water. The lead PI for this next phase of work is Professor Bill Mitch and Dr.Criddle. Dr. Tilmans will be there to help operations go smoothly. This section of the project ends around the 2023/2024 timeframe. The project is complete and in operation.
This project is demonstrating the elimination of aeration and its high energy demands as part of secondary water treatment at the Silicon Valley Clean Water wastewater treatment facility using a novel staged Anaerobic Fluidized Bed Membrane Bioreactor (SAF-MBR). This System is projected to generate 30 percent less bio-solids than conventional systems that require aeration. This project also seeks to demonstrate the potential for development of a new high-quality local water supply through non-potable and advanced potable reuse treatment trains that eliminate process steps that normally precede the use of reverse osmosis.
The technology has the potential to lower facility operating costs due to the removal of the aeration step from processing wastewater, the reduction of bio-solids that must be disposed of, and the increased yield of methane bioga
The lower energy use combined with onsite renewable energy production will reduce greenhouse gas emissions. The technology will reduce biosolids waste that is typically trucked for off-site disposal.