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@article{2232168,
author = {Struk, Martin and SepúlvedaandMuñoz, Cristian A. and Kushkevych, Ivan and Muñoz, Raúl},
article_number = {February},
doi = {http://dx.doi.org/10.1016/j.jhazmat.2022.130337},
keywords = {Desulfurization H2S Methane Photosynthetic bacteria},
language = {eng},
issn = {0304-3894},
journal = {Journal of Hazardous Materials},
title = {Photoautotrophic removal of hydrogen sulfide from biogas using purple and green sulfur bacteria},
url = {https://www.sciencedirect.com/science/article/pii/S0304389422021318#!},
volume = {443},
year = {2023}
}
TY - JOUR
ID - 2232168
AU - Struk, Martin - Sepúlveda-Muñoz, Cristian A. - Kushkevych, Ivan - Muñoz, Raúl
PY - 2023
TI - Photoautotrophic removal of hydrogen sulfide from biogas using purple and green sulfur bacteria
JF - Journal of Hazardous Materials
VL - 443
IS - February
SP - 1-11
EP - 1-11
PB - Elsevier
SN - 03043894
KW - Desulfurization H2S Methane Photosynthetic bacteria
UR - https://www.sciencedirect.com/science/article/pii/S0304389422021318#!
N2 - Biogas desulfurization based on anoxygenic photosynthetic processes represents an alternative to physicochemical technologies, decreasing the risk of O2 and N2 contamination. This work aimed at assessing the potential of Allochromatium vinosum and Chlorobium limicola for biogas desulfurization under different light intensities (10 and 25 klx) and H2S concentrations (1 %, 1.5 % and 2 %) in batch photobioreactors. In addition, the influence of rising biogas flow rates (2.9, 5.8 and 11.5 L d-1 in stage I, II and III, respectively) on the desulfurization performance in a 2.3 L photobioreactor utilizing C. limicola under continuous mode was assessed. The light intensity of 25 klx negatively influenced the growth of A. vinosum and C. limicola, resulting in decreased H2S removal capacity. An increase in H2S concentrations resulted in higher volumetric H2S removal rates in C. limicola (2.9–5.3 mg L-1 d-1) tests compared to A. vinosum (2.4–4.6 mg L-1 d-1) tests. The continuous photobioreactor completely removed H2S from biogas in stage I and II. The highest flow rate in stage III induced a deterioration in the desulfurization activity of C. limicola. Overall, the high H2S tolerance of A. vinosum and C. limicola supports their use in H2S desulfurization from biogas.
ER -
STRUK, Martin, Cristian A. SEPÚLVEDA-MUÑOZ, Ivan KUSHKEVYCH and Raúl MUÑOZ. Photoautotrophic removal of hydrogen sulfide from biogas using purple and green sulfur bacteria. \textit{Journal of Hazardous Materials}. Elsevier, 2023, vol.~443, February, p.~1-11. ISSN~0304-3894. Available from: https://dx.doi.org/10.1016/j.jhazmat.2022.130337.
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