This energy company needed Symbiont, now a Mead & Hunt company, to design and construct a facility to treat waste collected via trucking and direct piping from food processing facilities to produce energy. During the planning phase, Symbiont analyzed for wetlands and potential stormwater infiltration. Our custom-designed underground piping system collected, stored, and slowly released stormwater from detention basins during rainfall events. We also supported in acquiring stormwater discharge permits. We designed and constructed the waste-to-energy system featuring two 2-million-gallon high-rate anaerobic digesters that generate biogas, which is treated and then burned in two internal combustion engines to generate electricity. The anaerobic effluent is further treated with a moving bed aerobic bioreactor and dissolved air flotation (DAF) system prior to discharge to the city sewer. The treated biogas is burned in two internal combustion engines to power the facility. Heat captured from the engines is transferred to the food processing facilities.
Key Project Aspects
Treats 300,000 gal waste
Generates 3.2MW of electricity
Generates 362-million BTU/day heat
Generates 1,000 SCFM of biogas