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At the Chur WWTP, HOLINGER evaluated the operating data of the rain overflow basin (ROB). This allowed us to derive initial measures to improve water protection. In addition, the analysis showed the potential for improving the...


On June 4, HOLINGER welcomed around 50 customers and business partners in the Bourbaki Panorama in Lucerne. The focus of the customer event was sustainability in urban development and the motto was "Thinking ahead for the...


HOLINGER now has a device for taking indoor air samples. It is ideal when building managers want to clarify whether the indoor air is contaminated with pollutants from the building – for example, because tar oil was used in the...


At the WWTP Flos in Wetzikon, HOLINGER implemented a powder activated carbon (PAC) dosing system to eliminate micro-pollutants from the wastewater. The PAC silo with integrated dosing station was successfully commissioned at the...


15 process engineers were introduced to the newly-revised Dim File for the dimensioning of sewage treatment plants. The internal training, in May, began with a brief introduction before the participants from the various HOLINGER...


MIKE 21 can be used to create 2D surface runoff models and to directly test possible mitigation measures. HOLINGER has implemented one such model for the municipality of Bettingen (BS). Discharge hydrographs were created for the...


In January 2017, HOLINGER was commissioned by the Office for Waste, Water, Energy and Air (AWEL) of the Canton of Zurich to revise the hazard maps in three municipalities. A working group revised the flood hazard maps and created...


In the context of the General Drainage Plan (GDP) of the wastewater association for the Laufental-Lüsseltal region, HOLINGER is constructing a mixed water basin in the parish garden of the Herz-Jesu church in Laufen. The...


The right bank of the Aare river near Kiesen-Jaberg is in poor condition. Two significant infrastructure facilities, a drinking water pipeline and the A6 motorway, are situated in the area behind the existing bank protection....