Advanced strategies for enhancing dark fermentative biohydrogen production from biowaste towards sustainable environment

[Display omitted] •Biowastes rich in carbohydrates are sustainable sources for biohydrogen production.•Advanced methods employed in bioprocesses to enhance hydrogen yield were critically discussed.•Advanced strategies were proposed for biohydrogen purification.•Challenges and perspectives concerning...

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Published in:Bioresource technology 2022-05, Vol.351, p.127045-127045, Article 127045
Main Authors: Cheng, Dongle, Ngo, Huu Hao, Guo, Wenshan, Chang, Soon Woong, Nguyen, Dinh Duc, Deng, Lijuan, Chen, Zhuo, Ye, Yuanyao, Bui, Xuan Thanh, Hoang, Ngoc Bich
Format: Article
Language:English
Subjects:
Advanced technology
Bacteria - genetics
Biofuels
Biohydrogen production
Bioreactors
Biowaste
Dark fermentation
Fermentation
Hydrogen - analysis
Purification
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Summary:[Display omitted] •Biowastes rich in carbohydrates are sustainable sources for biohydrogen production.•Advanced methods employed in bioprocesses to enhance hydrogen yield were critically discussed.•Advanced strategies were proposed for biohydrogen purification.•Challenges and perspectives concerning biohydrogen production were stated. As a clean energy carrier, hydrogen is a promising alternative to fossil fuel so as the global growing energy demand can be met. Currently, producing hydrogen from biowastes through fermentation has attracted much attention due to its multiple advantages of biowastes management and valuable energy generation. Nevertheless, conventional dark fermentation (DF) processes are still hindered by the low biohydrogen yields and challenges of biohydrogen purification, which limit their commercialization. In recent years, researchers have focused on various advanced strategies for enhancing biohydrogen yields, such as screening of super hydrogen-producing bacteria, genetic engineering, cell immobilization, nanomaterials utilization, bioreactors modification, and combination of different processes. This paper critically reviews by discussing the above stated technologies employed in DF, respectively, to improve biohydrogen generation and stating challenges and future perspectives on biowaste-based biohydrogen production.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2022.127045