A thermophilic cyanobacterium named Thermosynechococcus CL–1 (TCL–1) was cultivated in the flat plate photobioreactors under strong illumination with dense culture to examine the effects of nutrient concentrations on the biomass production, CO2 fixation, and the potential as the feedstock for bioethanol production. The results show that concentrations of Na, NO3, and CaCl2•2H2O, should be decre...

This paper presents a parametric study of light transfer simulations in a rectangular photobioreactor containing gas bubbles and cyanobacteria Anabaena variabilis suspended in water. To the best of our knowledge, this paper presents for the first time a model for such system (i) using a consistent set of radiative properties of the medium derived from experimental data and from Mie theory, (ii)...

Microalgae-mediated CO2 sequestration has been a subject of numerous research works and become one the most promising strategies to mitigate carbon dioxide emissions. However, feeding flue exhaust gas into algae-based systems shown destroy chloroplasts, as well disrupt photosynthesis other metabolic processes in microalgae, which directly limits uptake. biosequestration existing photobioreactor...

Maximal productivity of a 14 mm light-path panel photobioreactor under high irradiance was determined. Under continuous illumination of 2,100 micromol photons m(-2) s(-1) with red light emitting diodes (LEDs) the effect of dilution rate on photobioreactor productivity was studied. The light intensity used in this work is similar to the maximal irradiance on a horizontal surface at latitudes low...

BACKGROUND Microalgae are a potential source of sustainable commodities of fuels, chemicals and food and feed additives. The current high production costs, as a result of the low areal productivities, limit the application of microalgae in industry. A first step is determining how the different production system designs relate to each other under identical climate conditions. The productivity a...

A numerical study is presented aiming to maximize the solar to hydrogen energy conversion efficiency of a mixed culture containing microorganisms with different radiation characteristics. The green algae Chlamydomonas reinhardtii CC125 and the purple non-sulfur bacteria Rhodobacter sphearoides ATCC 49419 are chosen for illustration purposes. The previously measured radiation characteristics of ...

Flashing light effect on microalgae could significantly improve the light efficiency and biomass productivity of microalgae. In this paper, the baffles were introduced into the traditional flat plate photobioreactor so as to enhance the flashing light effect of microalgae. Making Chlorella sp. as the model microalgae, the effect of light intensity and inlet velocity on the biomass concentration...

A novel approach to cultivating cyanobacteria is presented which utilizes near-field evanescent waves on the surface of waveguides to excite the photocenters in the thylakoid membranes of cyanobacteria. This approach to light delivery when applied to photobioreactor design may provide an opportunity to significantly increase yield and make biofuels an economically competitive alternative to tra...

Abstract In vitro plant propagation systems such as temporary immersion bioreactors (TIBs) are valuable tools that enable production of disease-free plants with improved traits. However, TIB can be expensive, difficult to implement, and prone contamination due sugar rich media. Using rapidly growing chicory root cultures expedite design-build-test cycles, we report here an improved, low-cost ve...