Aktiviteter pr. år
Projektdetaljer
Beskrivelse
Our goal is to promote a paradigm shift in lake management by restoring freshwater bodies by transforming lake sediment and P polluted lake water into a valuable resource without any harmful effects on the environment. Our vision will be achieved through a unique and well-aligned constellation of interdisciplinary research between four Danish universities and relevant stakeholders from industry, agriculture, and lake managers. An integral part of the RePair project will be the interdisciplinary training of students by teams of academic supervisors providing cross-sectoral research collaborations among the students.
The major initiatives taken to ensure a successful outcome of the project are:
1: Develop a dredging technique, which results in only minimal disturbances of the lake ecosystem.
2: Reduce sludge handling volumes by mechanical dewatering, thus reducing sediment water content.
3: Remove dissolved P and nitrogen from the reject water so that it can be immediately returned to the lake without the need for further treatment while recovering nutrients for reuse.
These initiatives will be conducted in Lake Ormstrup (12 ha), which will serve as our demonstration lake during the project period. The project will be a showcase for how lake restorations of the future should be undertaken, develop the new future technologies required and successfully develop a “tool box” of technologies, which can be combined based on lake specific requirements, while demonstrating how P in lake sediment and lake water can be recovered and used as a fertilizer product. Furthermore, unwanted compounds in the sediment such as heavy metals and problematic organic compounds can be selectively
removed from the sediment. The project will demonstrate dewatering and handling of the sediment in ways, which require no harmful chemicals or synthetic polymers. It is expected that the technologies developed
will increase sediment dry matter to over 60 % and in a handling time of less than 24 hours. The technologies will ensure that even P and nitrogen in low concentrations can be removed from lake water and recovered in a manner that enables their reuse as a fertilizer. It is expected that this highly interdisciplinary project will not only impact future best practices in lake restoration but will also be applied to manure management and sludge treatment in wastewater treatment plants (WWTPs), where ever-increasing volumes of sludge and
manure are proving an insurmountable global issue.
Kort titel | rePair |
---|---|
Status | Igangværende |
Effektiv start/slut dato | 01/10/2021 → 31/03/2025 |
Samarbejdspartnere
- University of Southern Denmark
- Technical University of Denmark
- Aarhus University
Finansiering
- Poul Due Jensens Fond: 25.919.600,00 kr.
FN's verdensmål
I 2015 blev FN-landene enige om 17 verdensmål til at bekæmpe fattigdom, beskytte planeten og sikre velstand for alle. Dette projekt bidrager til følgende verdensmål:
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Aktiviteter
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Mechanical Dewatering
Christensen, M. L. (Foredragsholder)
23 maj 2024Aktivitet: Foredrag og mundtlige bidrag › Konferenceoplæg
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Statusmøde i rePair projektet
Muff, J. (Deltager), Sharker, T. (Deltager), Christensen, M. L. (Deltager), Simoni, G. (Deltager) & Cheali, P. (Deltager)
19 apr. 2023Aktivitet: Deltagelse i faglig begivenhed › Organisering af eller deltagelse i workshop, kursus, seminar, udstilling eller lignende
Publikation
- 5 Tidsskriftartikel
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Comparison of solid-liquid separation technologies for dewatering of lake sediment flocculated with biobased flocculants
Simoni, G., Smith, A. M., Cheali, P., Chen, X., Naknikham, U. & Christensen, M. L., 2025, I: Total Environment Engineering. 2, 10 s., 100004.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review
Åben adgang -
Effect of dopants in polyaniline-coated capacitive deionization electrodes on anion selectivity
Gamaethiralalage, J. G., Muff, J. & de Smet, L. C. P. M., dec. 2024, I: Progress in Organic Coatings. 197, 108854.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review
Åben adgangFil -
Flocculating and dewatering of lake sediment: An in-situ pilot study comparing synthetic polymers and biopolymers for restoring lake water quality and reusing phosphorus
Simoni, G., Cheali, P., Roslev, P., Haasler, S., Reitzel, K., Smith, A. M., Haferbier, M. H. S. & Christensen, M. L., 25 feb. 2024, I: Science of the Total Environment. 913, 169597.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review
2 Citationer (Scopus)
Presse/medier
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Gymnasie-elever fandt »guld« på bunden af Ormstrup Sø
30/08/2024 → 01/09/2024
4 elementer af Mediedækning
Presse/medie