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Different technologies for producing Algae

Different technologies for producing Algae. Batch and continuous production methods. Main culture systems. Batch culture 300 or 500 litre sacs D-ended tanks Continuous culture Connected sac system (SeaSalter) Tubular fence (BioFence) Tubular spiral (AddaVita )

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Different technologies for producing Algae

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  1. Different technologies for producing Algae Batch and continuous production methods Live food aquaculture training course www.aquatrain.org

  2. Main culture systems Batch culture • 300 or 500 litre sacs • D-ended tanks Continuous culture • Connected sac system (SeaSalter) • Tubular fence (BioFence) • Tubular spiral (AddaVita) • heterotrophic production (Aqua Fauna) Live food aquaculture training course www.aquatrain.org

  3. Batch Culture Indoors Greenhouse Live food aquaculture training course www.aquatrain.org

  4. Tank culture Advantages - large volumes Disadvantages - weak culture, prone to contamination Small tanks large tanks Live food aquaculture training course www.aquatrain.org

  5. SeaSalter SystemContinuous Algal Production, Systems, SeaCAPS Adapted batch culture technique Plastic Sacs connected together • dosing pump water and nutrient supply • overflow into common collector Live food aquaculture training course www.aquatrain.org

  6. SeaSalter SeaCAPSwater supply Live food aquaculture training course www.aquatrain.org

  7. SeaSalter SeaCAPSalgae collection Live food aquaculture training course www.aquatrain.org

  8. SeaSalter SeaCAPS Equipment required Live food aquaculture training course www.aquatrain.org

  9. SeaSalter SeaCAPS • Water pasteurised before distribution • Nutrients and carbon dioxide are metered in continuously • All pipework is designed to be steam sterilised weekly They can be installed • indoors, • in greenhouses (with or without supplementary lighting • outdoors under shade Live food aquaculture training course www.aquatrain.org

  10. SeaSalter SeaCAPS • Each 500 litre bag will yield 80-120 litres of algae per day. • The expected production of a 40-bag unit would be 4-5 cubic metres per day of quality algae. • Cell density is dependent on light availability and required flow rates • draws less than 3kW of power excluding lights Live food aquaculture training course www.aquatrain.org

  11. SeaSalter SeaCAPS • Requires about 2 man-days per week are enough to run a 40-bag installation and take care of stock and starter cultures • 500 Litre polythene bags are run for an average of four months and discarded before collapsing • A typical greenhouse-type installation with artificial illumination can attain a cell density of 4000 cells/microlitre. Live food aquaculture training course www.aquatrain.org

  12. SeaSalter SeaCAPS MaxMar Mariscos, Laguna Manuela in Baja California with a 12 bag layflat system to support their hatchery to grow C. gigas and scallops. Live food aquaculture training course www.aquatrain.org

  13. SeaSalter SeaCAPS lay flat bag systems outdoors which operate with no artificial light. Live food aquaculture training course www.aquatrain.org

  14. SeaSalter SeaCAPS Norway Scalpro AS produce scallops and oysters at Rong, near Bergen. Their upright system built into an old fish processing plant has been working since 1996 Live food aquaculture training course www.aquatrain.org

  15. Tubular reactors • BioFence • Addavita Why do we change from batch to continuous high density production? Live food aquaculture training course www.aquatrain.org

  16. Theory In a tank or algal bag system, the zone of penetration is low. Once the cells move away from that surface then light cannot penetrate and photosynthesis ceases. However, this dark area allows more complex protein building to occur within the algae. Due to sacs diameter the ratio of light to dark area is small and so algal growth is limited. Live food aquaculture training course www.aquatrain.org

  17. Transparent tubes, self-cleaning Very tough, very clear food grade plastic tubes.  They are self cleaning thanks to patented special cleaning beads that continuously circulate with the algae. This enables the system to be run for extended periods without culture crashes or cleaning. Live food aquaculture training course www.aquatrain.org

  18. Space saving and reliable Space saving - The tubes can be mounted vertically in a fence like arrangement or horizontally on the ground or at an angle on a roof. They take up a lot less room than other growing methods and of course, they are growing far more concentrated algae so even less space is required. Reliable -Can operate for long periods before crashing, consistent quality of product. Efficient - save on labour costs Live food aquaculture training course www.aquatrain.org

  19. Ready prepared nutrients There are two major sources of error in growing algae; preparation and contamination ready made nutrients with complete formulation in sterile, concentrated liquid form  Live food aquaculture training course www.aquatrain.org

  20. BioFence Clear pipe fence reactor Live food aquaculture training course www.aquatrain.org

  21. BioFence Live food aquaculture training course www.aquatrain.org

  22. BioFence Production Live food aquaculture training course www.aquatrain.org

  23. BioFence Production Live food aquaculture training course www.aquatrain.org

  24. BioFence Greenhouse Live food aquaculture training course www.aquatrain.org

  25. BioFence indoors Live food aquaculture training course www.aquatrain.org

  26. AddaVita Clear pipe spiral reactor Live food aquaculture training course www.aquatrain.org

  27. Live food aquaculture training course www.aquatrain.org

  28. AddaVita reactor Live food aquaculture training course www.aquatrain.org

  29. AddaVita outdoors and indoors Live food aquaculture training course www.aquatrain.org

  30. AddaVita controls Live food aquaculture training course www.aquatrain.org

  31. Heterotrophic production Live food aquaculture training course www.aquatrain.org

  32. Boa photobioreactor Live food aquaculture training course www.aquatrain.org

  33. Prism photobioreactor Live food aquaculture training course www.aquatrain.org

  34. Motor Tubular photobioreactor Schematic Diagram of Tubular Photobioreactor Height 1.5m Diameter 30 cm Live food aquaculture training course www.aquatrain.org

  35. Tubular photobioreactor Live food aquaculture training course www.aquatrain.org

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