Bioenergy Production from Sorghum Distillers Grains via Dark Fermentation
Author Information
Author(s): Lu Ching-Chun, Lin Chiu-Yue, Mahboubi Soufiani Amir
Primary Institution: Feng Chia University
Hypothesis
This work aimed to investigate the feasibility of producing biohydrogen from SDG generated from a sorghum liquor factory and evaluating the biohydrogen-based electricity for domestic usage in the factory.
Conclusion
Biohydrogen production from SDG waste via dark fermentation is feasible, with high acidic pH values leading to higher hydrogen production rates.
Supporting Evidence
- Sorghum distillers grains can produce biohydrogen with a maximum production rate of 3.2 L/L-d.
- High acidic pH values during fermentation lead to increased hydrogen production rates.
- The study suggests a two-stage anaerobic fermentation system for better energy recovery.
- Hydrogen production from SDGs can help in waste management and energy generation.
Takeaway
Scientists found a way to make clean energy from leftover grains used to make liquor, which can help reduce waste and produce electricity.
Methodology
The study used batch fermentation of sorghum distillers grains at various pH levels to measure hydrogen production and evaluated the potential for bioelectricity generation.
Limitations
The biohydrogen production and engine performance data were obtained via small-scale tests and were preliminary, indicating potential efficiency losses in scaled-up operations.
Digital Object Identifier (DOI)
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