Joint International Conference on Long-term Experiments ...

WASTEWATER TREATMENT TEHNOLOGIES OF BEER INDUSTRY OF
ROMANIA
Pantea Emilia Valentina*, Mirel I**., Romocea Tamara*, Mitrasca Mihaela*
*University of Oradea, ** University of Timisoara
ABSTRACT
For beer industry, the implementation of the (EMS) ISO 14001 protection managerial
system is primordial, determinant for the study of wastewater treatment optimization.
Beer factories are using a lot of water, so it is very important that they choose
efficient methods for treating the wastewater in different stages of the production with a
minimum impact on the environment.
At first, in our country, an anaerobe treatment method was chosen, either for an
anaerobe treatment of this water, but comparing the efficiency of these two processes as
well as the process combined of anaerobe pre-treatment followed by passing the
anaerobe effluent through an anaerobe treatment stage, it was noticed that this choice is
much more advantageous for used water from beer industry.
This paper is trying to exemplify this technology in the case of a beer factory from
Romania.
Keywords: aerobic, anaerobic, brewery effluent, wastewater treatment
INTRODUCTION
Along time were recorded the effects of waste water coming from breweries on the
environment and especially on the effluents in which they are discharged. Protecting the
environment, especially the water sources, has become one of the primordial objectives
of the government, in this way the adoption of a more efficient water management was
attempted.
Beer breweries from Romania produce different sorts of beer, their number has
been increasing after 1990. The quantity and quality of waste water coming from these
breweries vary between 3-5 and 40-50 hectolitres, being dependant on a series of factors
specific to production process.(Pantea et al., 2005)
The treatment of industrial waste water is considered as a non-productive activity,
so that many industries have tried to minimize the investments in water treatment plants.
But, in the last years, together with our EU adhering the legal framework has become
more restrictive, so it has determined the installation and performing of water treatment
plants of industrial wastewater which should be prerequisite for each industry.
WASTEWATER TREATMENT
Breweries and malt factories are part of the fermentative industries category which use
raw materials like: barley, corn, wheat, hop and which use big quantities of water for the
technological process.
Due to the high content of substances easily fermentable, there are some acid
fermentation phenomena, which give off unpleasant smell and develop fungi and the
content in matters in suspension favour the make up of sediments which affect the
piscicultural environment by using the oxygen. (Negulescu C, 1987)
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