Photobioreactors

The increased productivities achievable in photobioreactors versus open ponds were demonstrated by Tredici and Materassi (1992). However, comparison of open pond systans and various photobioreactors for a number of species, including Chlorella pyrenoidosa, Tetraselmis chui and Spirulina spp., made by Lee (2001) showed that productivities from photobioreactors need not surpass those of open pond systems. More recent estimates of productivities (Chisti, 2007 Wiffjels and Barbosa, 2010) suggest that photobioreactors will be essential to achieve the high production necessary for commercial production of bioenergy and other bioproducts. [Pg.226]

Geographic location can play an important part in deciding whether microalgae culture will be effective. A temperature of 15 °C or above is considered essential for sustained algal production outdoor productivities are affected by environmental variables such as low seasonal and night-time temperatures as well as variable irradiance (Von Hamelen and Oonk, 2006). Chini Zittelli and co-workers (2003) demonstrated that a combination of natural and artificial illumination gave optimum productivities of Nannochloropsis between December and May in the continental Mediterranean climate of Italy. [Pg.226]

Effect of superficial gas velocity on growth of the green microalga Haematococcus pluvialis in airlift photobioreactor... [Pg.481]

Biofixation of C02 by microalgae, especially as an option for the utilisation of flue gases from power plants, has been the subject of extensive investigations in the United States, Japan and Europe (IEA-GHG Biofixation Network). However, none of the related projects have demonstrated the feasibility of the concept at a pre-industrial level. What is more, C02 fixation efficiency is quite low because of the photobioreactors used in those pilot plants (raceway or open-ponds) (Figure 17). [Pg.105]

Figure 17. Microalgae culture in open system (raceway) and close photobioreactor (Almeria University and Palmerillas Research Center).

P. Carlozzi, A. Sacchi (2001) Biomass production and studies on Rhodopseudomonas palustris grown in an outdoor, temperature controlled, underwater tubular photobioreactor. Journal of Biotechnology, 239-249... [Pg.54]

T. Otsuki, S. Uchiyama, K. Fujiki, and S. Fukunaga. (1998) Hydrogen production by a floating-type photobioreactor BioHydrogen, edited by Zaborsky et al, 369-374... [Pg.54]

A numerous research articles using different approaches were published last decades. Simultaneously, the development of cultivation regimes, immobilization procedures, and photobioreactors bring some methods from the state-of-the art to the technology. This mini review is focused on some technological methods able to solve problems, shown above. [Pg.57]

The rate of H2 production by one unit of photobioreactor s volume is not useful for estimation of strain capabilities or for measurements of efficiency of light energy conversion. However, it is useful unit of measurements for optimization of hydrogen production by particular photobioreactor. From practical point of view it does not matter how much cells are in the photobioreactor or how much hydrogen is produced by one unit of illuminated surface. The rate of hydrogen production by the whole photobioreactor is of first importance. For a comparison of different photobioreactors it is better to express rate of hydrogen photoproduction per unit of its volume. So, it is practical unit for estimation of actual hydrogen photoproduction. [Pg.59]

Many different types of photobioreactors for suspension cultures are described in literature. The photobioreactor construction should solve the main problem an application of uniform light intensity to the culture. The detail description of photobioreactors is not a topic of present mini-review. For reference last reviews of photobioreactors are available [Tsygankov, 2001 Akkerman et al., 2002],... [Pg.61]

Here it is necessary to underline that no photobioreactor has a configuration appropriate for sufficient illumination of cultures with concentration more than 3-5 g l 1. [Pg.61]

The specific volumetric rate of hydrogen photoproduction depends on the rate of hydrogen production by one unit of biomass and on the concentration of the biomass in a photobioreactor. The improvement of a biomass activity is the basic problem for strain selection or construction. The specific volumetric rate might be increased technologically by increase of biomass concentration. [Pg.63]

Photobioreactor [Tsygankov et al., 1994] withitt. sphaeroides RV immobilised on porous glass (125x50x0.5 mm3) with continuous medium flow (5 ml h 1 reactor 1) was illuminated from face (thickness 0.5 mm curve 1) or side position (thickness 50 mm curve 2) by halogen lamp [Tsygankov, Miyake, unpublished]. [Pg.67]

In conclusion, technological methods such as continuous medium flow, immobilized cells, and photobioreactor with particular illumination design have high potential in solution of following problems ... [Pg.68]

A. A. Tsygankov, A. S. Fedorov, S. N. Kosourov, K. K. Rao (2002) Hydrogen production by cyanobacteria in an automated outdoor photobioreactor under aerobic conditions. [Pg.68]

El-Shishtawy R.M.A., S. Kawasaki, M. Morimoto (1997) Biological ff2 production using a novel light-induced and diffused photobioreactor. Biotechnol. Techn., 11 403-409... [Pg.68]

M. R. Tredici, G. C. Gitelli (1998) Efficiency of sunlight utilization Tubular versus flat photobioreactors. Biotechnol. Bioeng., 57 187-197... [Pg.70]

A. A. Tsygankov (2001) Laboratory scale photobioreactors. Appl. Biochem. Microbiol, 37 333-341 (Translated from Prikl. Biokhim. Mikrobiol., 37 387-397 Russian)... [Pg.70]

A. A. Tsygankov, Y. Hirata, M. Miyake, Y. Asada, J. Myake (1994) Photobioreactor with photosynthetic bacteria immobilized on porous glass for hydrogen photoproduction. J. Ferm. Bioengineering, 77 575-578. [Pg.70]

A. A. Tsygankov, T. Laurinavichene, I. Gogotov, Y. Asada, J. Miyake (1996) Switching over from light limitation to ammonium limitation of chemostat cultures of Rhodobacter capsulatus grown in different types of photobioreactors. J. Marine Biotechnol., 4 43-46... [Pg.70]

S. C. Wang, M. R. Jin, D. O. Hall (199 Immobilization of Anabaena azollae in hollow fibre photobioreactors for ammonia production. Bioresource Technol., 38 85-90... [Pg.71]

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