Since May 1, 2020, the HaFF research project has been dedicated to the reduction of nutrients in the wastewater of aquaculture plants and in the water body of nutrient-rich surface waters. This project, coordinated by CRM – Coastal Research & Management, is embedded in the research project “Bioeconomy on Marine Sites (BaMS)”.

BaMS will receive up to 20 million euros in funding from the BMBF over the next 10 years and will research how the change to a bio-based, sustainable form of economy can be achieved. Partners from science, business and society are looking for solutions in the aquatic circular economy that preserve the marine ecosystem but at the same time provide economic impulses (“blue bioeconomy”).
The nutrient reduction in the Baltic Sea and in its catchment area is a central concern in the BaMS-HaFF project. In contrast to previous concepts, terrestrial vascular plants are to be used here in the treatment of saline wastewater from aquaculture plants, in extractive aquaculture and in the bioremediation of eutrophicated brackish waters. The plants produced in this way should represent economic added value.

The principle of extractive aquaculture with vascular plants is being tested at three different locations using various innovative techniques. The goals are the development and validation of these techniques, the assessment of their potential for a substantial nutrient reduction in the examined water bodies and the diversification of possible aquaculture products through the use of hitherto not yet or only rarely cultivated vascular plant species. Halophytes in particular form a basis for the development of high-quality products, such as B. in the food sector. The use of plant species with promising ingredients and the development of innovative products from the biomass produced are therefore among the main fields of work of the project. Products in the broader sense also include the systems and concepts to be developed, the market potential of which is to be examined in the course of the project.

HaFF is one of the 8 collaborative projects from the first round of tenders. Six partners are working on this project: EUCC – The Coastal Union Germany e.V., Fraunhofer Institute for Marine Biotechnology and Cell Technology, Hanffaser Uckermark eG, Kieler Meeresfarm GmbH, N.A.T. Engineering-ecological planning office and re-natur GmbH. The project partners want to achieve a nutrient reduction through biomass production with vascular plants, using flood-tolerant species with different salt tolerances. Planted swimming modules are used here directly in open water. A wastewater treatment plant will also purify the wastewater from a saltwater aquaculture plant. The feed with salt water is special about the new plant water treatment plant. CRM takes over the project coordination and, together with the project partners, takes care of the plant sewage treatment plant. Later, the researchers also want to examine the plant material obtained for its suitability for use in cosmetic products.

–> Find out more in the project poster BaMS_Symposium_Poster_HaFF

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