Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Biohydrogen production in an outdoor panel photobioreactor on dark fermentation effluent of molasses
Date
2011-08-01
Author
Avcioglu, Sevler Gokce
Ozgur, Ebru
Eroglu, Inci
Yucel, Meral
Gündüz, Ufuk
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
28
views
0
downloads
Cite This
Hydrogen is regarded as an ideal energy carrier if it is produced from renewable resources such as biomass. Sequential operation of dark and photofermentation allows a highly efficient production of hydrogen from biomass, as maximal conversion of the energy in the carbohydrates to hydrogen can be achieved. In this study photofermentative hydrogen production was carried out in a solar panel photobioreactor by Rhodobacter capsulatus wild type (DSM 1710) and Rhodobacter capsulatus hup(-) (YO3) strain on the molasses dark fermentation effluents which were obtained using an extreme thermophile Caldicellusiruptor saccharolyticus in the dark fermentation step. Continuous hydrogen production on the molasses dark fermentation effluents was achieved up to 55 days with R. capsulatus wild type and 75 days with R. capsulatus hup(-) in outdoor conditions during summer 2009, in Ankara Turkey. The maximum hydrogen yield obtained using R. capsulatus hup- was 78% (of the theoretical maximum) and the maximum hydrogen productivity was 0.67 mmol H-2/L-c.h. The maximum hydrogen productivity and yield of the wild type strain on the molasses dark fermentation effluents were 0.50 mmol H-2/L-c.h and 50%, respectively. The changes in climatic conditions, particularly daily global solar radiation, affected the hydrogen productivity and yield. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Subject Keywords
Photofermentation
,
Biohydrogen
,
Molasses
,
Photobioreactor
,
Global solar radiation
,
Ethanol-Type fermentation
,
Hydrogen-production
,
Rhodobacter-capsulatus
,
Sphaeroides
,
Mutants
,
Reactor
,
Sludge
URI
https://hdl.handle.net/11511/30407
Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
DOI
https://doi.org/10.1016/j.ijhydene.2010.12.046
Collections
Graduate School of Natural and Applied Sciences, Article
Suggestions
OpenMETU
Core
Biohydrogen production from beet molasses by sequential dark and photofermentation
Ozgur, Ebru; Mars, Astrid E.; Peksel, Beguem; Louwerse, Annemarie; Yucel, Meral; Gündüz, Ufuk; Claassen, Pieternel A. M.; Eroglu, Inci (2010-01-01)
Biological hydrogen production using renewable resources is a promising possibility to generate hydrogen in a sustainable way. In this study, a sequential dark and photofermentation has been employed for biohydrogen production using sugar beet molasses as a feedstock. An extreme thermophile Caldicellulosiruptor saccharolyticus was used for the dark fermentation, and several photosynthetic bacteria (Rhodobacter capsulatus wild type, R. capsulatus hup(-) mutant, and Rhodopseudomonas palustris) were used for t...
Biohydrogen production by Rhodobacter capsulatus on acetate at fluctuating temperatures
Ozgur, Ebru; Uyar, Basar; Ozturk, Yavuz; Yucel, Meral; Gündüz, Ufuk; Eroglu, Inci (2010-03-01)
Hydrogen is a clean energy alternative to fossil fuels. Photosynthetic bacteria produce hydrogen from organic compounds under anaerobic, nitrogen-limiting conditions through a light-dependent electron transfer process. In this study, the hydrogen production efficiency of phototrophic bacteria, Rhodobacter capsulatus and its Hup mutant strain (an uptake hydrogenase deleted strain) were tested on different initial acetate concentrations at fluctuating temperatures with indoor and outdoor photobioreactors. Ace...
A compact tubular photobioreactor for outdoor hydrogen production from molasses
KAYAHAN, Emine; Eroglu, Inci; Koku, Harun (2017-01-26)
Hydrogen can be produced sustainably by photofermentation of biomass. For an economically feasible operation, the process should be implemented outdoors using low-cost organic material. In the current study, molasses from a sugar factory was utilized for photofermentative hydrogen production. The experiment was run with Rhodobacter capsulatus YO3 (hup-) in fed-batch mode under outdoor conditions in Ankara between July 12, 2015 and July 24, 2015. The stacked U-tube photobioreactor (9 L) designed for outdoor ...
Bio-fuel production from microalgae
Onay, Melih; Yücel, A Meral; Öktem, Hüseyin Avni; Department of Biochemistry (2015)
Bio-fuel is a renewable fuel and it includes different biofuel energy sources such as methane, bioethanol and biodiesel. Generally, biodiesel is produced from agricultural waste, vegetable oils such as soybean and palm oil. Third generation biofuels called as microalgae have been appeared nowadays. In the current study, biodiesel production from thermo-resistant green microalgae was focused on. For this aim, microalgae were sampled from a few hotspring points in Haymana and isolated. Identification and char...
Design of Electrical Submersible Pump system in geothermal wells: A case study from West Anatolia, Turkey
Aydın, Hakkı; Merey, Şükrü (Elsevier BV, 2021-5-12)
Geothermal is defined as one of the renewable and sustainable energy sources. The sustainability of geothermal wells is highly dependent on the pressure drive mechanism and non-condensable gas (NCG) content of the produced geothermal fluid. Pressure decline and decline of non-condensable gases are commonly observed in geothermal production wells, which is unfavorable for wells’ lifetime. Electrical Submersible Pumps (ESP) are one of the solutions for extending the lifetime of geothermal wells. In this study...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
S. G. Avcioglu, E. Ozgur, I. Eroglu, M. Yucel, and U. Gündüz, “Biohydrogen production in an outdoor panel photobioreactor on dark fermentation effluent of molasses,”
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
, pp. 11360–11368, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30407.