The newsletter from TZW: DVGW-Technologiezentrum Wasser

Editorial

Dear colleagues,

We are glad to present you several new projects at TZW. All of them promote the sustainable use of water as a resource. The development of coliform bacteria in dams is becoming relevant due to climate change. A project on the recycling of saline industrial water develops new analysis methods. TZW coordinates an international project on pathogens and antibiotic resistances in aquatic ecosystems. 

Have an inspiring reading

Dr. Josef Klinger

Hot summers stimulate strong increase of coliform bacteria in dams

Worldwide, surface waters like lakes and reservoirs are one of the major sources for drinking water production. In recent years, increase of coliform bacteria in summer have been observed in these waters regularly. Concentrations of several thousand coliform bacteria per 100 mL often occurred in the raw water. This phenomenon poses a special challenge for the treatment in waterworks. Within the framework of a DVGW research project, these mass proliferations were investigated. The main findings of the project have now been published. Since the mass proliferation of coliform bacteria is particularly noticeable in hot and dry summers, these developments can be expected to occur more frequently in the future due to climate change.

RIKovery: Recycling of industrial saline process water

How can we succeed in using industrial water flows as fully as possible and thus relieve the strain on natural water resources? This is the goal of the RIKovery project (project website) funded by the German Federal Ministry of Education and Research (BMBF). The project consortium from industry and research is investigating processes such as ion separation, concentration and intelligent monitoring that enable the recycling of industrial saline water. The background is the increased need, due to an increasing water shortage, to reuse saline water and at the same time to recycle the removed ingredients. Currently, more than 6 million tons of chloride are discharged annually into surface waters via wastewater in Germany. Process wastewater and partial flows of existing treatment processes as well as saline wastewater from tailings piles or saline groundwater are relevant here. TZW’s task is to develop an online-capable process monitoring system for organic micropollutants in highly saline matrices.

SARA:  International project on pathogens and antibiotic resistances in aquatic ecosystems

The "Joint Programming Initiatives" (JPI) are instruments for realising the European Research Area. In March 2021, the three JPI “Water”, “Antimicrobial Resistance” and “Oceans” published for the first time a joint call for proposals combining the research areas of contaminants of emerging concerns, pathogens and antimicrobial resistance in the whole water cycle. During the review process, a total of 18 projects were selected for funding from 184 applications. These include the research project SARA (Surveillance of Emerging Pathogens and Antibiotic Resistances in Aquatic Ecosystems), which is coordinated by TZW. Together with partners from Sweden, France, Spain, Portugal, Israel, Mozambique and Uganda, the occurrence of pathogenic viruses (including SARS-CoV-2), microbial indicators, antibiotic resistances and markers for microbial source tracking in river catchments will be assessed within the SARA project.

News in brief from TZW

New project "MultiKulti"

In a nationwide research network, in which TZW is involved, an automated bioreactor is to be developed that simulates natural habitat conditions as closely as possible. The aim is to obtain natural biocoenoses in the laboratory in order to cultivate even those microbes that have very special demands on their environment. The new project "MultiKulti" is funded by the German Federal Ministry for Education and Research and started with the kick-off meeting on 16/17 September 2021. Read more on the project website

Climate Hero Award

For the idea and the project application on "Effects of urease inhibitors on microbiology and groundwater quality", the project group from TZW and bnNETZE GmbH received the "Climate Hero Award” (Klimahelden Preis) from badenova's Innovation Fund for Climate and Water Protection. Info on the project here

New issues of TZW publication series (in German only)

97 Coliforme Bakterien in Talsperren [Coliform bacteria in dams]
98 Nachweis, Dynamik und Stimulation der Denitrifikation in Gewässern [Detection, dynamics and stimulation of denitrification in water bodies]
99 Microbial Source Tracking - Identifizierung fäkaler Eintragsquellen [Microbial Source Tracking - Identification of faecal input sources]

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TZW: DVGW-Technologiezentrum Wasser (German Water Centre)
Karlsruher Straße 84, D-76139 Karlsruhe, Germany
phone: +49 721 9678-0, e-Mail: info@tzw.de, www.tzw.de

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