Investigation Of Influencing Factors For Biological Hydrogen Production By R. Capsulatus In Tubular Photo-Bioreactors

Date

2009-05-13

Author

Boran, E.
Ozgur, E.
Gebicki, J.
van der Burg, J.
YÜCEL, MUSTAFA
Gündüz, Ufuk
Modigel, M.
Eroglu, I.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

154
views

0
downloads

Biological hydrogen production processes are considered as an environmentally friendly way to produce hydrogen. They offer the chance to produce hydrogen from renewable energy sources, like sunlight and biomass. This study aims the process development for a photo-fermentative hydrogen production by photosynthetic purple-non-sulfur bacteria, Rhodobacter capsulatus, in a large scale (80L) tubular photo-bioreactor, in outdoor conditions, using acetate as carbon source. It was shown that Rhodobacter capsulatus had a rapid growth (mu(max) = 0.025 h(-1)). Moreover, at light intensities below 10000 lx (100W/m(2) solar illumination) the hydrogen production does not occur. It was found that the optimum dry cell weight for hydrogen production was in between 0.8 to 1 g/L in order to increase light penetration. Hydrogen production was not observed for the pH values higher than 8. The productivity in terms of illuminated area and day time was 0.3 mmol H-2/m(ill)(2).hr(ill) in December 2008 in a glasshouse. The yield of hydrogen was 19 mg H-2/g acetate input. The acetate utilization was %87.5 at a feed rate of 10L/day and substrate conversion efficiency was %16. As a result, hydrogen production in a pilot scale tubular photobioreactor for continuous hydrogen production was achieved by R. capsulatus in outdoor conditions. This study showed that photo-fermentation in a pilot scale tubular photobioreactor would provide hydrogen successfully, even in the low light intensity.

Subject Keywords

Rhodobacter-Sphaeroides OU-001, Photobioreactor, OU001

URI

https://hdl.handle.net/11511/31934

DOI

https://doi.org/10.3303/cet0918057

Collections

Graduate School of Natural and Applied Sciences, Conference / Seminar

Suggestions

OpenMETU
Core

Photobiological hydrogen production by Rhodobacter sphaeroides O.U.001 by utilization of waste water from milk industry Turkarslan, S; Yigit, DO; Aslan, K; Eroğlu, İnci; Gündüz, Ufuk (1997-06-26) Hydrogen production with photosynthetic microorganisms contributes to the protection of the environment, not only in producing a clean fuel but also in waste treatment processes. In this study, Rhodobacter sphaeroides, a photosynthetic bacteria, is used in photobiological hydrogen production by using waste water from the milk industry.
Design of an outdoor stacked - tubular reactor for biological hydrogen production KAYAHAN, Emine; Eroglu, Inci; Koku, Harun (Elsevier BV, 2016-11-02) Photofermentation is one alternative to produce hydrogen sustainably. The photobioreactor design is of crucial importance for an economically feasible operation, and an optimal design should provide uniform velocity and light distribution, low pressure drop, low gas permeability and efficient gas-liquid separation. A glass, stacked tubular bioreactor aimed at satisfying these criteria has been designed for outdoor photofermentative hydrogen production by purple non sulfur bacteria. The design consists of 4 ...
Biological hydrogen production by using co-cultures of PNS bacteria Baysal, Görkem; Yücel, Ayşe Meral; Özgür, Ebru; Department of Biotechnology (2012) Biological hydrogen production is a renewable, carbon-neutral and clean route for hydrogen production. Purple non-sulfur (PNS) bacteria have the ability to produce biohydrogen via photofermentation process. The type of the bacterial strain used in photofermentation is known to have an important effect on hydrogen yield. In this study, the effect of different co-cultures of PNS bacteria on photofermentation process was investigated in search of improving the hydrogen yield. For this purpose, growth, hydrogen...
Design and analysis of tubular photobioreactors for biohydrogen production Kayahan, Emine; Eroğlu, İnci; Koku, Harun; Department of Chemical Engineering (2015) Hydrogen can be produced sustainably by utilizing organic wastes through photofermentation. In order to obtain an economically feasible operation, the photobioreactor design is of crucial importance. An optimal photobioreactor design should provide uniform velocity and light distribution, low pressure drop, low gas permeability and efficient gas-liquid separation. The aim of this study was to design a pilot-scale photobioreactor satisfying these criteria and to test the reactor under outdoor conditions with...
Long-term stable hydrogen production from acetate using immobilized Rhodobacter capsulatus in a panel photobioreactor Elkahlout, Kamal; Sagir, Emrah; Alipour, Siamak; Koku, Harun; Gündüz, Ufuk; Eroglu, Inci; Yucel, Meral (2019-07-12) Biological hydrogen production is attractive since renewable resources are utilized for hydrogen production. In this study, a novel panel photobioreactor (1.4 L) was constructed from Plexiglas with a network of nylon fabric support for agar immobilized bacteria complex. Two strains of Rhodobacter capsulatus DSM 1710 wild-type strain and Rhodobacter capsulatus YO3 (hup(-), uptake hydrogenase deleted mutant) with cell concentrations of 2.5 and 5.0 mg dcw/mL agar, respectively were entrapped by 4% (w/v) of aga...

Citation Formats

E. Boran et al., “Investigation Of Influencing Factors For Biological Hydrogen Production By R. Capsulatus In Tubular Photo-Bioreactors,” 2009, vol. 18, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31934.