Bio-augmentation application at Athenian Brewery in Patras, Greece

Brewery wastewaster
  • 80% sludge reduction
  • 25% more waste treated
  • 40% energy reduction


The Athenian Brewery in Patras has a capacity of 35.000 P.E. The plant has a particularity, due to the nature of the product, that the hydraulic loads change drastically over periods of time, coercing the wastewater treatment plant to process high and low influent loads and subsequently stress the system. The addition of the specific microbial strains has helped the plant to make smoother transitions from low to high loads, being able to treat up to 25% more waste.

Also, in the past, the plant was producing an average of 2.700 tons of dehydrated sludge per year, prior to the application of bio-augmentation, resulting in a vast cost for disposal. Bio – augmentation was implemented in May 2015 and the produced sludge was reduced by up to 80%. Additionally, the actual electricity consumption has been reduced up to 40%. Electrolyte consumption has also minimized due to the reduction of dewatered sludge.