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  The Royal Swedish Academy of Engineering Sciences (IVA) is an independent academy with a mission “...to promote engineering and economic sciences and the advancement of business and industry for the benefit of society.” We bring together leading engineers, economists, researchers, entrepreneurs and leaders in business and the public sector, who contribute generously to IVA’s operations through their intellectual capital and their engagement.
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Current events

SeaBased

Fastläggning av fosfor i sediment.

IVAs 100-lista 2020

Year:

2020

Category:

Society & welfare

University:

Stockholm University

Responsible Researcher:

Sven Blomqvist, Eva Björkman, Nils Ekeroth, Henry Persson

Visit Project Website

Our mission is to restore eutrophicated water bodies by using our patented method with activated limestone to bind phosphorus (P) in the bottom sediment. The material is inexpensive, and it is produced from a byproduct from lime quarries. It is spread above or at the water surface and settles to the bottom to react in the sediment. The uptake capacity of the activated limestone for phosphorus is very high and can reach 20 g P/kgsorbent and above.

The method has been tested in a bay of the Baltic Sea using activated limestone produced in Gotland, and the preliminary results show a very promising decrease of phosphorus in the bottom water. We have recently also started a project with the aim to reduce the leakage of phosphorus from sediment below fish farms.

We are looking for owners of eutrophicated water bodies that are interested in using our method, such as County Administrative Boards, private owners, and fish farmers.

IVA’s 100 List 2020 - Sustainable competitiveness

IVA’s 100 List 2020 highlights a diverse range of research projects from Swedish universities, under the theme Sustainable competitiveness. The projects have been selected based on their great potential to create value through commercialization, business and method development, or societal impact. All participating researchers are interested in increased contacts with the business sector for the application and further development of their projects.

Named contact persons for each research project on the 100 List are responsible for the accuracy of the information presented.

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