According to the Brewers Association, the average water-to-beer ratio for a brewery is around 7-to-1. This means that most of a brewery’s input water is discharged as wastewater. Characterized as “high strength” due to its high levels of biological oxygen demand (BOD), brewery wastewater is difficult and expensive to treat. However, it also provides a significant opportunity – brewery wastewater has up to 3 kWh of energy per kg of BOD.
Because of its energy potential, onsite biological wastewater treatment can be particularly compelling as a way to both decrease wastewater treatment costs, which often come in the form of trucking fees, discharge fees, and fines for noncompliance, while increasing sustainability.
Cambrian Innovation’s EcoVolt® Reactor, EcoVolt MBR, and EcoVolt MINI offer cost-effective options to breweries with wastewater flows as low as 2,000 gallons per day , from energy-positive wastewater treatment to energy-neutral wastewater treatment and water reuse. And now, with the Water-Energy Purchase Agreement™ (WEPA), breweries can access these novel solutions as a service.
Cambrian is increasingly becoming the standard for the top names in the brewing industry, including Bear Republic, Lagunitas, and Russian River.