Project results phase 1

Recent results include finalization of laboratory investigations for establishing the scientific basis for completing development of the RAZone innovation components and building the pilot plant at end user sites.

Further to this, laboratory trials run at TI have resulted in selection of devices that compose the ozone delivery unit. These have been subjected to functionally tests in relation to generation of microbubbles for agglomeration of fine particles and oxidation of dissolved organics that represent the main target pollutants of RAZone. A number of iterations have been made through simulation with artificially contaminated fresh water representing a pre-filtered water in RAS. Promising results have been attained from the trials in relation to technological objectives of the project. The design of the reaction chamber for the ozonation process is progressing.  After integration of the  ozone delivery unit with the reaction chamber, more trials will be run jointly by TI and Fraunhofer as a basis for any necessary modifications

Experimental studies conducted at LU in relation to generation of intermediate products of oznation have revealed formation of chlorine and bromine by-products whereas ozone itself is unstable and is rapidly removed. The investigation has also discovered application of salts that can moderate the change in redox-potential, but formation of TROs continues in spite of such measures. In addition to this, it is confirmed that valuable minerals needed for stock can be lost during ozonation.

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