A recent patent filed by researchers from Wayne State University,Detroit, MI, US is on internal lighting for algae cultivation. The patent is on an enclosed, internally-lighted bioreactor apparatus comprising a main having an inlet and an outlet. This novel photobioreactor provides a method for enhancing the growth of a photosynthetic microorganism comprising:

A carbon dioxide inlet to an enclosed culture comprising water and photosynthetic microorganisms

Equipments to move a light-transmitting or light-emitting material through the culture to distribute light to the microorganisms

Sensors for maintaining optimal pH, viscosity, turbidity, temperature, and dissolved oxygen.

For more information on this patent see: http://www.freepatentsonline.com/y2010/0028977.html

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