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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...


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