Wastewater-borne microalga Chlamydomonas sp.: A robust chassis for efficient biomass and biomethane production applying low-N cultivation strategy

Klassen V, Blifernez-Klassen O, Bax J, Kruse O (2020)
Bioresource Technology 315: 123825.

Zeitschriftenaufsatz | E-Veröff. vor dem Druck | Englisch
 
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Abstract / Bemerkung
Biogas/biomethane generation from microalgae biomass via anaerobic fermentation is increasingly gaining attention as CO2-neutral energy source. Intensive research has shown, however, that microalgae represent a rather challenging substrate for anaerobic digestion (AD) due to their high cell wall recalcitrance and unfavourable protein content. Previously, the utilization of nitrogen-limited (low-N) microalgal biomass for continuous AD-processes was demonstrated (as proof-of-concept) with remarkable biomethane productivity. The present study shows the efficient portability of the low-N cultivation/fermentation strategy on a robust, wastewater- borne microalga isolate that tolerates high temperature and light conditions and can perfectly cope with microbial contaminations. Continuous long-term anaerobic digestion was characterized by stable and efficient specific biogas and biomethane productivity (765 ± 20 and 478 ± 15 mLNg−1 volatile solids (VS) d−1, respectively), equivalent to volumetric methane productivity of 1912 mLN L−1d−1. The present work underlines the applicability of low-N-biomass of wastewater-borne, robust microalgae as mono-substrate for highly efficient continuous methane generation.
Stichworte
Biogas/(Bio)methane; Continuous anaerobic fermentation/digestion; Wastewater microalga-isolate; Microalgae low-N mono-substrate; Maximal energy conversion efficiency
Erscheinungsjahr
2020
Zeitschriftentitel
Bioresource Technology
Band
315
Art.-Nr.
123825
ISSN
0960-8524
eISSN
1873-2976
Page URI
https://pub.uni-bielefeld.de/record/2945237

Zitieren

Klassen V, Blifernez-Klassen O, Bax J, Kruse O. Wastewater-borne microalga Chlamydomonas sp.: A robust chassis for efficient biomass and biomethane production applying low-N cultivation strategy. Bioresource Technology. 2020;315: 123825.
Klassen, V., Blifernez-Klassen, O., Bax, J., & Kruse, O. (2020). Wastewater-borne microalga Chlamydomonas sp.: A robust chassis for efficient biomass and biomethane production applying low-N cultivation strategy. Bioresource Technology, 315, 123825. doi:10.1016/j.biortech.2020.123825
Klassen, V., Blifernez-Klassen, O., Bax, J., and Kruse, O. (2020). Wastewater-borne microalga Chlamydomonas sp.: A robust chassis for efficient biomass and biomethane production applying low-N cultivation strategy. Bioresource Technology 315:123825.
Klassen, V., et al., 2020. Wastewater-borne microalga Chlamydomonas sp.: A robust chassis for efficient biomass and biomethane production applying low-N cultivation strategy. Bioresource Technology, 315: 123825.
V. Klassen, et al., “Wastewater-borne microalga Chlamydomonas sp.: A robust chassis for efficient biomass and biomethane production applying low-N cultivation strategy”, Bioresource Technology, vol. 315, 2020, : 123825.
Klassen, V., Blifernez-Klassen, O., Bax, J., Kruse, O.: Wastewater-borne microalga Chlamydomonas sp.: A robust chassis for efficient biomass and biomethane production applying low-N cultivation strategy. Bioresource Technology. 315, : 123825 (2020).
Klassen, Viktor, Blifernez-Klassen, Olga, Bax, Jördis, and Kruse, Olaf. “Wastewater-borne microalga Chlamydomonas sp.: A robust chassis for efficient biomass and biomethane production applying low-N cultivation strategy”. Bioresource Technology 315 (2020): 123825.

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