Effect of cell movement by random mixing between the surface and bottom of photobioreactors on algal productivity

  title={Effect of cell movement by random mixing between the surface and bottom of photobioreactors on algal productivity},
  author={James Chukwuma Ogbonna and Hirokazu Yada and Hideo Tanaka},
  journal={Journal of Fermentation and Bioengineering},

Figures and Tables from this paper

The Impact of Raceway Mixing and Light Penetration on Algal Growth

THANAPISUDWONG, THATCHAI, M.S., December 2016, Civil Engineering The Impact of Raceway Mixing and Light Penetration on Algal Growth Director of Thesis: R. Guy Riefler Raceway ponds for microalgae are

Hydrodynamic characteristics and microalgae cultivation in a novel flat‐plate photobioreactor

The results showed that with inclined baffles built‐in, significant swirl flow could be generated in the FPPBR and the flashing light effect for microalgal cell could also be achieved and the photosynthesis efficiency of microalgae could be promoted.

Role of nutrient concentrations and water movement on diatom’s productivity in culture

Results revealed that, by doubling the concentration of phosphate, silicate, microelements and vitamins, growth rate was successfully enhanced, preventing phosphate or silicate limitation in the f/2 culture medium.

Treatment of high strength organic wastewater by a mixed culture of photosynthetic microorganisms

Both in terms of economy and efficiency,aerobic dark conditions were the best for wastewatertreatment using R. sphaeroides and C.sorokiniana, but light was necessary with S.platensis.


The Cyanobactrium Phormidium fragile and the green alga Scenedesmus armatus are chosen in this study for treatment of synthetic wastewater. The growth rate and nutrient removal rates were



The influence of light/dark cycles in mixed algal cultures on their productivity

Photobioreactor design: Mixing, carbon utilization, and oxygen accumulation

For most products of algal mass cultivation, open ponds are the only feasible photobioreactor design capable of meeting the economic and operating requirements of such systems, provided desirable species can be maintained.

Energetics of Photosynthetic Algal Growth: Influence of Intermittent Illumination in Short (40 s) Cycles

SUMMARY: A theory is developed to predict the growth rates of photosynthetic microbes in a photobiological reactor with light-sufficient zones and dark zones. The theory also predicts that in

The motion of algae in turbulent flow

This paper indicates a method for analyzing the motion of algae into and out of the illuminated region of a channel formed by flat, parallel, transparent plates, with light incident on the plates, and indicates that favorable sequences by this mechanism are unlikely.

Photosynthesis in modulated light: Quantitative dependence of photosynthetic enhancement on flashing rate

  • K. Terry
  • Biology
    Biotechnology and bioengineering
  • 1986
The photosynthetic rate of cells of Phaeodactylum tricornutum from a dense steady state culture was determined as a function of modulation frequency, intensity of light received, and the proportion of the total cycle period during which the cells were illuminated.

A simple algal production system designed to utilize the flashing light effect

The use of foil arrays appears to be an effective and inexpensive way to utilize the flashing light effect in a dense algal culture system.

Measurement of Algal Growth under Controlled Steady-state Conditions.

4. ENGELMANN, TH. W. Neue Methode zur Untersuchung der Sauerstoffauscheidung pflanzlicher und thierischer Organismen. Bot. Zeitg. 39: 441447. 1881. 5. EWART, ALFRED J. Further observations upon

Growth Rate of Chlorella in Flashing Light.

An apparatus for precise measurement of growth rate of an alga as a function of intensity and intermittency of illumination is described and the relationships of the new apparatus to other steady-state growth devices are discussed.