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Exploitation of Algal-Bacterial Consortia in Combined Biohydrogen Generation and Wastewater Treatment

Shetty, Prateek and Boboescu, Iulian Z. and Pap, Bernadett and Wirth, Roland and Kovács, Kornél Lajos and Bíró, Tibor and Futó, Zoltán and Maróti, Gergely (2019) Exploitation of Algal-Bacterial Consortia in Combined Biohydrogen Generation and Wastewater Treatment. Frontiers in Energy Research, 7. No. 52. ISSN 2296-598X

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Abstract

Microalgae cultivation in municipal, industrial, and agricultural wastewater is an emerging, highly effective approach for resource recovery and concomitant bioenergy generation. Wastewater effluents represent ideal sources of nutrients (especially nitrogen and phosphorous) for eukaryotic green algal species. However, the recovery performance of photosynthetic green algae is strongly dependent on the associated bacterial partners present in the effluents. Algal microbiome is a pivotal part of the algae holobiont and has a key role in modulating algal growth and functions in nature. There has been no comprehensive study on the importance of microbial communities supporting the algal hosts for the bulk of the time wastewater treatment methods have been in use. Our proposed approach applies a green microalgae-based photoheterotrophic degradation using dark fermentation effluent as substrate. The results showed that condition-dependent mutualistic relationships between the microbial and Chlorella algae populations had direct impact on the biodegradation efficiency and also on algal biohydrogen production. The genome level analysis of the novel hybrid biodegradation system provided important clues for the primary importance of the green algae partner in nitrogen and phosphorous removal. With further development and optimization this new approach can lead to a highly efficient simultaneous organic waste mitigation and renewable energy production technology.

Item Type: Article
Subjects: Q Science / természettudomány > QK Botany / növénytan
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 23 Nov 2019 09:36
Last Modified: 23 Nov 2019 09:36
URI: http://real.mtak.hu/id/eprint/103663

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