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Your  individual  ocean.
Paradigm shift in marine Aquaculture Made in Germany
Our Vision: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
© Johannes Arlt 35 years experience in marine  land-based recirculation systems
Marine fish Farm System RAS 1 RAS 2 RAS 3 RAS 4
Sea water Tap water Sea salt ,[object Object],[object Object]
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
Two-stage solid separation Process water Sludge Foam Drum  Filtration Foam Fractionation
Construction Biofilter Drum Filtration I Drum Filtration II Foam Fractionation Fish Basin Denitrification
Marine fish farm Völklingen
Research & Development Biogas Plant Fish Farm Fish Processing Extension
Integrated aquaculture Algae Plants Fish Dissolved Nutrients Particulate Nutrients Power &  Heat Energy Recycling Nutrient Recycling Invertebrate  Bacteria
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
Dissolved Nutrients Particulate Nutrients Dissolved Nutrients Marine Artificial Recirculating Ecosystem Sparus aurata Nereis sp. Solieria sp.
Microalgae Integration by phototrophic organisms Seaweed Halophytes Growth Nutrient Uptake Complexity
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 €
Sustainable Production

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Dragon Water Group Aquaculture 2

  • 2. Paradigm shift in marine Aquaculture Made in Germany
  • 3.
  • 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
  • 6.
  • 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 €