5th Generation Photo Bioreactors

Access to detailed information concerning the equipment design and exact configuration of the components of the system is restricted. Please contact Algae Production Systems directly for detailed information.


Stages in the photo bioreactor development process

Algae has been growing on the earth since the beginning of time. It grows where ever there is water, light and nutrients. The designs for devices or systems to grow algae are based on these factors.

  • 1st Generation

    The 1st Generation of algae production systems utilized designs based on still ponds, pivot ponds and a variety of designs of tanks. These first generation systems were crude and had all of the drawbacks and problems associated with growing algae in the open.

    Open systems

  • 2nd Generation

    The next generation of algae growing systems, the 2nd Generation, attempted to overcome some of the more obvious problems associated with the 1st generation systems. They utilized raceway ponds which allowed for “paddle wheels” to be applied that served to circulate the contents of the pond. This allowed for the better distribution of the nutrients that were added to the water, but that was about all they accomplished.

    Raceway Pond systems

  • 3rd Generation

    The 3rd Generation algae growing systems attempted to overcome some of the problems with the provious systems. Verticle or slanted clear pipes and hanging bags were used to allow for the controlled circulation of the water and the mixing of the nutrients, plus the introduction of the CO2 which is a necessary component of the feeding process for the algae. These systems were an improvement on the first two system designs but still only addressed a small number of the problems associated with algae growing.

    Verticle systems

  • 4th Generation

    The 4th Generation systems saw the introduction of horizontal, closed, full flood tubes connected together to form a photobioreactor. These systems had a significant advantage in that they could limit the contaminates that could entere into the algae being cultured. The also had all of the advantages of the first three systems, in that there was controlled circulation in a continuous racetrack configuration, with some allowance for the injection of nutrients and CO2.

    Closed Photo Bioreactors

  • 5th Generation

    APS has developed a 5th Generation algae growing system that incorporates a closed, non-full flood photobioreactor that employes computer controls to regulate such things as flow rate, feeding, and the offtake of harmful O2 that is released in the process of the algae growing.

    APS Photo Bioreactors

  • The main factors that any algae growing system must address in order to successfully maximize the growth of the algae are as follows:

  • Continuous Monitoring
  • Maximized Light Utilization
  • Injection of CO2 to maximize growth by maintaining optimum CO2 concentration
  • Nutrient Feeding
  • Temperature Control
  • Growth of Any Strain (Marine or Fresh Water)
  • Capability for Cycling of light and dark periods
  • Capability for Glucose injection during dark periods to continue growth WITHOUT sunlight
  • Ultra Violet filtration
  • Infra Red Ray filtration
  • Oxygen removal to prevent oxygen poisoning
  • Monitoring of the algae culture concentration to insure proper harvest point
  • Toroidal circulation in addition to longitudinal circulation
  • Maintain the optimum temperature for growth
  • Capability of Pre-harvest stressing
  • Capability for the application of Magnetism to accelerate growth
  • The APS 5th generation system is the result of several years of development, design and experimentation. Given our extensive research into, not only the science of algae, but also the mechanical components of a successful system design, the We feel that there is no other system on the market today that can match the APS system.

    APS Research and Design Efforts

    Some other features of the APS systems:

  • APS systems are pre-configured
  • APS system components are standardized
  • APS systems do not require flat ground
  • APS systems can be employed inside greenhouses for use in cold climates
  • APS offers operations contracts, maintenance contracts and warranty
  • APS offers biodiesel conversion equipment, electricity generating equipment and photovoltaic panels as “Companion Products”
  • APS can provide remote system operational efficiency analysis
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