Leading the way in filtration with Lubrafil Filtration:

For decades, Lubrafil has been supplying manual and automatic Boll & Kirch filters to the Dutch water sector. At Aqua Nederland, we are presenting our next step: the Boll4thStage Lab Container. This container will become a fully modular test facility for the fourth purification stage. In a single compact setup, we combine GAC, PAC, ozone, and SiC-ceramic UF membranes—technologies that have proven themselves in removing pharmaceutical residues and other micropollutants. What makes it unique is that all technologies can be tested independently and in any desired combination. This allows us to determine, under realistic conditions, which configurations work best for different WWTPs, discharge profiles, and future requirements. The Boll4thStage Lab Container will become a sector-wide innovation platform—a place where water authorities, engineering firms, builders, and suppliers can collect practical data, validate designs, and develop solutions ready for the 2027 Water Act requirements and for the challenges thereafter, from PFAS to microplastics. At Aqua Nederland, we are sharing the concept (we have already started construction). We invite everyone to contribute ideas, participate in testing, and take the next step together in improving water quality in the Netherlands.