Project progress

The latest project results involve literature review as a basis for development of RAZone’s innovative components, investigating chemistry of ozonation and corrosive properties of ozone to different materials and developing design specifications for the flotation chamber. Results involve also setting of equipment for laboratory investigations.

Literature review
A thorough literature study and database search has been carried out on kinetics of ozone dispersion  in fresh and sea water, characterizing residual ozone and lethal concentration to different species, kinetics of particulate and dissolved organics removal with ozone flotation, particle size distribution in recirculated water as well as corrosive behavior of ozone in fresh and sea water. Literature investigation on ozonation and chemistry of water including generation of  intermediate products of ozonation and  impact of the water chemistry on the ozonation process as well as depletion of essential minerals has also been accomplished

Laboratory trials

For investigating kinetics of ozone dispersion in water and optimization of ozone dosage  in order to limit residual ozone that can potentially harm the fish, a test setup has been constructed at TI. Trials are being carried out both with fresh and sea water and organic load based on data from end user partners and literature study.

Liverpool University is on the process of setting up the experimental system scheduled to start running at the beginning of July. Trials will involve effect of ozonation on water chemistry, generation of ozonation by products and effects of water composition on the ozonation process. On the biological side, experimental fish culturing system for fresh water is set up. The trial apparatus for marine system is under installation.

At Fraunhofer, design specification for the flotation chamber is being prepared based on literature investigation of particle distribution in recirculated water. This will be supported by laboratory studies using water samples and fish feed from Salmar and Anglesey.

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