The Radegast brewery, member of the Plzeňský Prazdroj group, has successfully put into full operation a system for optimal biogas combustion in the brewery’s boiler room. Now the brewery utilises in total nearly 100% of all biogas originating from the treatment of the brewery waste water in a methanogenic UASB reactor.
Completing the project of optimising the biogas combustion in the boiler room has further improved the energy utilisation of waste water in the Radegast brewery. The existing boiler room can use green biogas produced from waste water together with natural gas. The increased ecological combustion is now celebrating half a year of its existence, during which time the boiler room has utilised 130,000 m3 of green fuel (biogas) more than in previous years. The utilisation of biogas from the waste water pre-treatment plant has thus increased by 20% to the current 99%.
In its waste water treatment plants at the breweries in Nošovice and Velké Popovice Prazdroj saves each year in total more than 1 million m3 of biogas, which is used for heat generation. “This way we save an amount of natural gas which would supply about 260 family houses with energy for heating and standard consumption for one year,” says Petr Holeček, Corporate Manager of Environmental Affairs at Plzeňský Prazdroj.
The breweries of Plzeňský Prazdroj utilise more than 40% of its total annual waste water production (3.375 million m3) in anaerobic reactors where organic impurities are largely converted into biogas suitable for energy utilisation. Pre-treated water from the Nošovice brewery reactor is finally treated in the municipal waste water treatment plant in Sviadnov and then the clean water flows into the Ostravice River. A different system is used for treatment of rain water flowing off paved reas of the Nošovice brewery where natural cleansing ponds are used before letting the water flow into the Morávka River.
Waste water treatment, energy savings, water resources protection,
minimization of CO2 emissions, recycling and secondary waste utilisation in Plzeňský Prazdroj are an integral part of our social responsibility and sustainable development strategy.
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