Photoautotrophic Microalgal Cultivation and Conversion

Third generation biofuels: Cultivation methods and technologies for processing of microalgal biofuels

“…Pojam biogoriva može se definisati na više načina, pri čemu se najčešće koristi definicija data *Autor za korespodenciju: Milica Preradović E-mail: milica.preradovic@student.mf.unibl.org Rad primljen: 25 [2]. Osnovni razlog za preradu biomase u različite vrste čvrstih, tečnih i gasovitih biogoriva je dobijanje goriva veće energetske gustine u odnosu na rastresitu neprerađenu sirovu biomasu, te lakše skladištenje i transport [3].…”

“…CO 2 ) kao izvor ugljenika, kako bi stvorile hemijsku energiju kroz proces fotosinteze. Ovaj način gajenja mikroalgi je je najčešće u upotrebi [24,25]. Glavna prednost korišćenja autotrofne kultivacije mikroalgi je upravo korišćenje CO 2 kao izvora ugljenika u svrhu rasta ćelija i proizvodnje ulja.…”

Optimizing Light Distributions in a Membrane Photobioreactor via Optical Fibers To Enhance CO2 Photobiochemical Conversion by a Scenedesmus obliquus Biofilm

“…Because of the rapid growth rate and abundant valuable intracellular biocompounds, microalgae have been showing great potential in areas of greenhouse gas reduction, environmental pollution treatment, biofuel and high value-added bioproduct synthesis, and so forth. − Photobioreactors (PBRs) are devices where microalgae cell proliferation occurs and therefore play a crucial role in realizing the aforementioned microalgae-based applications . Currently, aqua-suspended PBRs in which microalgae cells are suspended within bulk liquid culture medium as planktonic cells are the primary adopted microalgae cultivation systems. , Nevertheless, the inherent disadvantages of aqua-suspended systems including an energy-intensive harvesting process, huge water requirement, and low biomass productivity have greatly hindered their further development and large-scale applications . Concretely, with respect to the aqua-suspended systems, it is estimated that the microalgae biomass harvesting process accounted for ca.…”

“…A simple way to fulfill this purpose is to improve the incident light intensity illuminating a microalgae biofilm, whereas photoinhibition will be caused by the excess photons, and thus microalgae cells in the upper layer of the biofilm will be damaged . Furthermore, the widely adopted methods in aqua-suspended PBRs by circulating microalgae cells between dark regions and light regions via aeration or active mixing are no longer suitable to biofilm-based PBRs because the positions of microalgae cells within the biofilm are fixed. , …”

“…4 Currently, aqua-suspended PBRs in which microalgae cells are suspended within bulk liquid culture medium as planktonic cells are the primary adopted microalgae cultivation systems. 4,5 Nevertheless, the inherent disadvantages of aqua-suspended systems including an energy-intensive harvesting process, huge water requirement, and low biomass productivity have greatly hindered their further development and large-scale applications. 6 Concretely, with respect to the aqua-suspended systems, it is estimated that the microalgae biomass harvesting process accounted for ca.…”