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Description
Increasing levels of Dissolved Organic Matter (DOM) is a large challenge for Drinking Water Treatment Plants. Surface water is the source for more than 50% of drinking water in the Czech Republic. In the region of South Bohemia surface water supports drinking water for more than 350 thousand people from the reservoirs (Římov, Husinec, Jordán) and Otava River. Catchments of these sources will be characterized with respect to the sources of DOM and their temporal and spatial variability resulting in a map of DOM sources with future predictions. A methodology for outflow control in reservoirs to minimize the effect of flood events with high DOM levels will be developed. A cooperation among basin authorities, drinking water producers and Czech and Norway research partners will be established.
Summary of project results
The DWARF project aimed to address the increasing levels of Dissolved Organic Matter (DOM) in drinking water sources, particularly in surface water reservoirs like Římov, Husinec, and Jordán, which supply drinking water to over 350,000 people in South Bohemia, Czech Republic. This increase in DOM poses a significant challenge for drinking water treatment plants.
Researchers characterized DOM sources and variability within the catchment, developed strategies to control reservoir outflow during high DOM floods, and tested DOM removal methods through pilot experiments. They also created models to predict DOM levels in the Římov reservoir and mapped DOM sources in the catchment, incorporating future climate change scenarios. Finally, they produced a methodology for operational water quality management in reservoirs.
This project contributed to drinking water quality in South Bohemia by gaining a deeper understanding of dissolved organic matter (DOM) in water sources. Researchers developed methods to control reservoir outflow during high DOM periods, mapped DOM sources, and created a water quality management methodology. These efforts, shared through publications and workshops, resulted in improved water treatment processes and better preparedness for future water quality challenges, ultimately benefiting both treatment plants and residents who rely on these water sources. The results are being already exploited.
Summary of bilateral results
The bilateral collaboration provided significant benefits through intensive cooperation, including joint assessments, workshops, stakeholder meetings, and knowledge exchange, which raised awareness and strengthened mutual expertise. The partnership with the donor partner ensured access to specialized expertise, resources, and technical contributions, resulting in shared outcomes and laying the groundwork for future joint applications, such as potential Horizon projects.