1. Your individual ocean.

2. Paradigm shift in marine Aquaculture Made in Germany

4. © Johannes Arlt 35 years experience in marine land-based recirculation systems

5. Marine fish Farm System RAS 1 RAS 2 RAS 3 RAS 4

7. Water treatment on Highest Standard 50 m³/h Fish basins Water volume 1500m³ Drum Filtration I Skimmer & Ozonation Biological Nitritification Biological Denitrification Drum Filtration II 4500 m³/h 1500 m³/h 4500 m³/h 4500 m³/h 4500 m³/h Primary water cycle Water recycling Secondary water cycle 10 m³/h 2 m³/h 10 m³/h Sludge haul-off Sludge thickening 4 m³/d 2 m³/d 1 m³/d 7 m³/d Sludge Sewage 2 m³/d 5 m³/d Discharge Biogas

8. Two-stage solid separation Process water Sludge Foam Drum Filtration Foam Fractionation

9. Construction Biofilter Drum Filtration I Drum Filtration II Foam Fractionation Fish Basin Denitrification

10. Marine fish farm Völklingen

11. Research & Development Biogas Plant Fish Farm Fish Processing Extension

12. Integrated aquaculture Algae Plants Fish Dissolved Nutrients Particulate Nutrients Power & Heat Energy Recycling Nutrient Recycling Invertebrate Bacteria

13. Integration by phototrophic organisms Source of Data Growth [g DW / m² / d] Nitrogen Uptake [g N / m² / d] Literature 40 - 100 3,0 - 7,5 Microalgae own studies* 16 - 71 1,2 - 5,3 Literature 6 - 100 0,7 - 6,0 Seaweed own studies* 1 - 24 0,6 - 1,5 Literature 1 - 7 0,03 - 0,2 Halophytes own studies 1 - 17 0,03 - 0,5 * artificial light

14. Dissolved Nutrients Particulate Nutrients Dissolved Nutrients Marine Artificial Recirculating Ecosystem Sparus aurata Nereis sp. Solieria sp.

15. Microalgae Integration by phototrophic organisms Seaweed Halophytes Growth Nutrient Uptake Complexity

16. Recycling of discharge water* * Calculations are based on a water renewal rate of 1% of the systems volume per day Water renewal costs [€ per year] Saving rate [%] Reduction of costs [€ per year] Sea salt 196.224 € 80% 156.979 € Tap water 63.072 € 70% 44.150 € Sewage 117.734 € 100% 117.734 € Total 377.030 € 85% 318.864 €

17. Sustainable Production