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310 results:
21. Jobs  
Working at HydroGroup® Advantages of a family-run company - paired with the attractiveness of a market leader. Become part of the HydroGroup® Our values: reliability, punctuality, honesty …  
22. Membrane processes  
Membrane processes in water treatment refer to processes in which substances are separated from aqueous solutions using membranes.  Microfiltration (MF) and Ultrafiltration (UF) are…  
23. Centralised softening  
Centralised softening of drinking water The term "water hardness" primarily refers to the concentration of the alkaline earth metals magnesium (Mg) and calcium (Ca) dissolved in water. The higher…  
24. Deacidification systems from HydroGroup  
Deacidification and Hardening Drinking water must be corrosion-neutral in accordance with applicable regulations. The Drinking Water Ordinance specifies a pH range between 6.5 (slightly acidic) and…  
25. Arsenic removal  
Arsenic removal In addition to iron and manganese, arsenic is another trace element that occurs particularly in reduced groundwater (deep groundwater). Arsenic contamination of drinking water is…  
26. Demanganisation  
Demanganisation The limit value for manganese in drinking water is 0.05 mg/l. This low value is not based on health considerations but primarily serves to protect the distribution network from…  
27. Iron removal  
Iron Removal Drinking water with an iron content of more than 0.2 mg/l must be treated, even if iron does not pose an immediate health risk.  Iron impairs the sensory quality of drinking…  
28. Turn of the Year 2025/2026  
In view of the uncertain global political situation and ongoing economic challenges, many people are finding it increasingly difficult to focus on the future.  
29. Ozonation  
Ozonation in water treatment Ozonation is an effective step in water treatment with a wide range of applications: drinking water and swimming pool water to aquaculture and wastewater treatment.…  
30. Drinking water treatment  
Systems for drinking water treatment Drinking water treatment is a matter of trust. Many people believe that the purpose of treatment is to turn poor water into good drinking water. Although this is…  
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