"TZW-Kolloquium" offered an overview of current water topics

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Every year in December TZW: DVGW-Technologiezentrum Wasser (German Water Centre) in Karlsruhe welcomes around 150 guests from water supply companies, industry , municipalities and specialist authorities to the "TZW-Kolloquium". The popular event provides participants with an overview of water research topics that TZW is currently investigating or research projects that have recently been completed. "We see our task in identifying future topics of water supply, presenting concepts and solutions and preparing them for our customers," said Dr. Josef Klinger, CEO of TZW, in his welcoming address.

Digitalisation, sustainability, optimisation - these catchwords are present on a daily basis, but what do these topics actually mean for the water supply? The presentations at the "TZW-Kolloquium" offered a number of application examples.

Digitalisation: A server-supported application module was presented, which helps to better systemise and visualise the risk management in the water supply with its essential steps system description, hazard analysis and risk assessment.

Sustainability: A project with Industrielle Werke Basel (IWB) showed which conflicts of use can arise between nature conservation and water supply. In the case presented, measures for the renaturation of water bodies are to be implemented for reasons of ecological sustainability. The near-natural conversion of the water body, however, influences the groundwater that is used locally for drinking water supply. If persistent and mobile trace substances occur in the resources for drinking water production, this represents a major challenge for the water supply company. A TZW expert presented an overview of the most relevant substances that occur as industrial chemicals in a variety of products. Another lecture explained how TZW develops structural concepts for the future design of the local water supply using the example of the city of Heidelberg. Different variants for the future supply structure were pointed out, and technically and economically viable concepts were developed and evaluated.

Optimisation: The TZW experts reported on a novel criticality analysis of drinking water supply objects and on the systematic evaluation of consumption hydrographs. Extensive experience in the field of water reuse has already been gained in some water-poor regions. It is worthwhile to deal with this issue in order to be able to assess its transferability if necessary.

The presentations from this year’s TZW-Kolloquium have been released as Volume 90 in its publication series (in German). The volume offers readable, concise summaries of the talks and can be purchased for 25 euro here.