Heineken's giant investment in Sopron

The new watercleaner system costs EUR 2.2 million. The plant was built from 100 tons of steel, 800 qm beton and 1,000 meter steinless steel.

The company use the same watercleaning
technologie as in Martfu, UASB anaerob, as Michiel Egeler CEO said
for Heineken environment protection is a big topic.

The UASB reactor is one of the reactor
types with high loading capacity. It differs from other processes by
the simplicity of its design. UASB process is a combination of
physical & biological processes. The main feature of physical
process is separation of solids and gases from the liquid and that of
biological process is degradation of decomposable organic matter
under anaerobic conditions. No separate settler with sludge return
pump is required, as in the anaerobic contact process. There is no
loss of reactor volume through filter or carrier material, as in the
case with the anaerobic filter and fixed film reactor types, and
there is no need for high rate effluent recirculation and concomitant
pumping energy, as in the case with fluidized bed reactor. Anaerobic
sludge inherently possesses good settling properties, provided the
sludge is not exposed to heavy mechanical agitation. For this reason
mechanical mixing is generally omitted in UASB-reactors. At high
organic loading rates, the biogas production guarantees sufficient
contact between substrate and biomass. Regarding the dynamic
behaviour of the water phase UASB reactor approaches the completely
mixed reactor. For achieving the required sufficient contact between
sludge and wastewater, the UASB-system relies on the agitation
brought about by the natural gas production and on an even feed inlet
distribution at the bottom of the reactor.