Environmental Engineering Reference
In-Depth Information
noted a fall of the total energy consumption by 7.3 and 2.2 %, respectively. At
present, the breweries in ElblǛg and Ǚ ywiec enjoy the lowest energy consumption
per 1 hl of beer. It amounts to 104 and 112 MJ/hl, respectively. The use of ther-
mal energy at the breweries in Ǚ ywiec, Warka and ElblǛg was also reduced. The
results achieved in this area are connected, for example, with the following:
• the change of the type of beer produced at the brewery in Ǚ ywiec, which now
requires lower thermal energy consumption (by 0.3 MJ/hl),
• the implementation of actions in the ield of optimisation of processes in the
brewhouse ( Ǚ ywiec brewery), on the line of washing bottles (lowering the
washing temperature from 84 to 80 °C),
• the optimisation of solutions in the ield of heat recovery at the brewery in
Ǚ ywiec,
• the replacement of selected technologies in the boiler room and water treat-
ment plant in the boiler room at the brewery in Warka (Corporate Social
Responsibility Report of Grupa Kapitałowa Ǚ ywiec S.A. for 2012 ).
3.5 Water and Wastewater
Brewing beer is a process requiring enormous quantities of water, which consti-
tutes as many as 92 % of the beer volume. It is also used in production for clean-
ing, in steam production, cooling water and in heat exchangers for temperature
control. A shortage of water poses, then, a potential threat not only to certain fields
of brewery operation, but also to the communities among which they operate. One
of the priorities for breweries is to increase beer production and, at the same time,
reduce water consumption. The specific water consumption dropped by 4.5 %
between 2008 and 2010. The specific water consumption, according to national
production data, varied from 2.5 to 6.4 hl/hl with an average of 4.2 hl/hl in 2010
(Donoghue et al. 2012 ).
Water use in technological processes is inseparably connected with wastewater
production. Breweries aware of the dangers resulting from uncontrolled movement
of polluted water supervise the circulation of the wastewater produced and strive
for reduction thereof. In 2010, every litre of beer produced in the EU translated
into 2.7 l of wastewater on average, which constituted a 5.9 % fall in relation to
the year 2008 (see Fig. 7 ) (Donoghue et al. 2012 ).
3.5.1 Kompania Piwowarska
As part of the co-operation between Water Futures and WWF and GIZ (a German
international agency for development), SABMiller participates in developing new
conceptions of water management. SABMiller engages in co-operation in aid of
watershed protection on a global scale, and Kompania Piwowarska successfully
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