Our certifications
German Association for Water, Wastewater and Waste (DWA)
We have been TSM-certified since 2011 and therefore fulfil the strict requirements of the Technical Safety Management (TSM).
The TSM is a process developed by the DWA for self-verification of companies in respect to the qualification and organisation of the technical departments.
Detailed information can be found at:
www.de.dwa.de/TSM.html
VDLUFA – QLA GmbH
Since 2006, the sewage sludge produced at the waste water treatment plant Steinhof has been certified. This examination takes place every two years.
Association of German Agricultural Analytic and Research Institutes (VDLUFA) and the German Association for Water, Wastewater and Waste (DWA) mutually developed a quality assurance system for organic waste that is suitable for use as a fertiliser in agriculture, the „quality assurance system for the agricultural utilisation of sewage sludge“ (QLA).
Its aim is the promotion of sustainable agricultural utilisation of residues and waste materials using the latest science and technology.
Detailed information can be found at:
www.qla.de
