Press releases 2017

Wastewater treatment in breweries – INVENT’s process engineering solutions

Wastewater coming from breweries is biologically and chemically heavily contaminated, the most important parameters being the biochemical oxygen requirement and sulfides that, when inadequately areated, can lead to olfactory problems (hydrogen sulfide). The federal government’s central wastewater processing agency stipulates strict maximum permissible values for the direct discharge of a brewery’s wastewater. Indirect discharge facilities are subject of different permissible values, varying partly depending on the specific communities. In any case, compliance with the permissible values is highly relevant for wastewater treatment plant operators in the vicinity of a brewery. 
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Beverage industry - water technology according to purity law

Plants that clean wastewater, for example in beer or mineral water production, are among the specialties of INVENT. The legal requirements vary by country and location. "If a brewery is located in the middle of the city, it can often direct its wastewater directly into the municipal sewage system," explains Dr.-Ing. Marcus Höfken, Chair of the Board at INVENT and Chair of the VDMA Water and Wastewater Technology Group. "The brewery must then follow the rules for an indirect discharger, which means that it drains water into the sewage system and must be able to store the wastewater temporarily." 
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Coagulation and flocculation in the Helsinki drinking water treatment plant

The raw water for Finland’s capital Helsinki is pumped from Lake Päijänne, located approximately 120 km away, via a tunnel to two water treatment plants, where it is treated and purified. This secures sufficient drinking water of excellent quality for around one million people. HSY, Helsinki’s Environmental Services Authority, is the communal treatment plant operator; it is responsible for securing the entire water supply. In the drinking water treatment plant in Vanhakaupunki 18 HYPERCLASSIC® Evolution7 mixers and three CYBERPITCH® mixers made by INVENT have been in operation since July 2017. 
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