Biogas production plant based on brewery’s wastewater

A. Le Coq was founded in 1807, it is the oldest beverage producer in Estonia, whose product range includes 11 different product groups. The largest of these is the product portfolio of beers, followed by juice, water and soft drinks and the other product groups. A. Le Coq holds the leading position on the Estonian drinks market in the categories of beer, juice, and long drinks and ranks a strong second in the production of water, soft drinks and cider.

The company's main resources that can be optimized are water, wastewater, natural gas and electricity. Almost 200 000 m3 of wastewater with the highest price range is directed to city’s sewage network annually. In order to reduce the burden on the urban wastewater network and increase the resource efficiency of the company, it was advised in resource audit to build anaerobic cycle biogas plant. In addition to reducing its environmental impact, the plant is also economically profitable for the company. Some of the natural gas imported to produce heat can be replaced by the biogas produced on site (100% of biogas produced on site is used on site for heating).