Krüger, a Veolia Water Solutions & Technologies' (VWS) subsidiary, was in charge of building the wastewater treatment plant when the beer production facility was put into operation in 1995.
Fully satisfied with the plants operation and the results, the client once again selected Krüger to upgrade the plant. Krüger's proposal included process design, detailed engineering, equipment delivery, supervision and commissioning.
Main benefits :
- anaerobic treatment removing up to 80% of COD,
- smaller aerobic installations using less space than the previous effluent treatment plant,
- reduced sludge production lowering costs related to sludge treatment and management,
- biogas production, which can be used for energy recovery, i.e. power needed for aerobic treatment .
Veolia Water technological solutions consists in a biological wastewater treatment plant, including:
- A first step of anaerobic pretreatment with high load UASB reactor (Upflow Anaerobic Sludge Bed, build by Krüger in 1995),
- an IC reactor operating in parallel with the UASB reactor,
- A secondary activated sludge stage for the removal of the residual COD load and nutrients after the two anaerobic steps,
- A sludge dewatering system,
- Two biogas storage tanks and gas flares for energy recovery from the anaerobic processes (one existing set from 1995 functioning with the UASB reactor, the other one build to handle the higher biogas production due to the new IC reactor).
