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Algae Photobioreactor

Algae, live in a wide range of aquatic environments and are a natural component of most aquatic ecosystems being found in both fresh, brackish and marine waters.

Microscopic microalgae; are free floating in the water column (planktonic) and encompass several groups of relatively simple organisms that capture light energy through photosynthesis, using it to convert inorganic substances into organic matter. Photosynthesis is a method used by plants to produce glucose from sunlight, carbon dioxide and water, with oxygen as a waste product.

Algal species display differing efficiencies, characteristics and potential useful added value outputs within the groups of diatoms (silica), green algae (nutritional), golden-brown algae (omega3 oils), chrysophytes and cyanobacteria (biofuels).

Biocoil Algae Production Algae Production

An enclosed Algae Photo-Bioreactor (APB) consists of transparent tubes, cylinders or plates that receive a high density culture of algae under daylight conditions, with an option to illuminate and extend the photoperiod of the culture to provide greater performance.

The substance is continuously pumped around the circuit where it achieves a regulatory ‘dark phase’. It is screened to harvest mature cells and water borne nutrients (preferably wastewater) are added and adjusted to the culture.

Applications for an APB's include household wastes, wastewater and power generated exhaust gases. It has recently been discovered that APB's can reduce CO2 emissions by up to 80% with the harvested algae processed to biofuel products recovering up to 40 per cent of oil from the feedstock.

Links [PetroSun (USA) | Sapphire Energy (USA) | Apbe Pty Ltd (AUS) ]

APB Second Life

A 3D concept animation of an APB/pond created in Second Life.

More recently APB's are being applied for the reduction of carbon emissions from biosequestration. Current algaculture R&D is focusing on APB/pond hybrid operations to increase algal densities to recover larger volumes of biofuels.

NEWS: Fishace has opened 'Expressions of Interest' for investment in a commercial 'coupled APB/pond' pilot plant to be located in Darke Peak, South Australia.Email  for further information

© 2013 Fishace