Simplicity Hits the Gas: A Robust, DIY Biogas Reactor Holds Potential in Research and Education in Bioeconomy
Abstract
:1. Introduction
2. Materials and Methods
2.1. Biodigester Design
2.2. Biodigester Construction Materials
2.3. Operation of the DIY Digester
2.3.1. Substrate and Inoculum
2.3.2. Batch Experiments
2.3.3. Analytical Methods
2.3.4. Data Analysis
3. Results
3.1. Design for the DIY Biodigester
3.2. Performance of the Digesters and System Stability
3.3. Dissemination Activities
4. Discussion
4.1. Considerations Related to Making a DIY Digester
4.2. Utilization of a Filter System
4.3. Potential for Future Improvement
4.4. Dissemination Strategies
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Materials | Size | Quantity | Price (Euro) | Total Cost (Euro) |
---|---|---|---|---|
Water plastic bottle | 20 L | 1 | 20.00 | 106.77 |
Plastic container | 0.5 L | 1 | 1.00 | |
Garden hose pipe | 16 mm | 2 m | 7.60 | |
Silicon pipe | 14 mm | 1 m | 9.99 | |
Ball valve tap | 32 mm | 1 | 3.99 | |
Plastic closure valves | 16 mm | 4 | 5.60 | |
T connector | 16 mm | 2 | 0.64 | |
Nipple male–male | 32 mm | 2 | 1.94 | |
Threaded sleeve female | 32 mm | 2 | 12.00 | |
Female threaded hose connector | 32 mm | 2 | 16.00 | |
Bunsen burner | 12 cm | 1 | 19.40 | |
Binder clamp | - | 1 | 1.12 | |
Glue * | - | 1 | 7.49 |
Parameters | Buffalo Manure | Inoculum | Food Waste |
---|---|---|---|
pH | 7.3 | 7.6 | 4.9 |
TS (%) | 17.8 | 5.3 | 30 |
VS (%) | 15.1 | 3.4 | 28.5 |
VS/TS (%) | 85.0 | 65.0 | 95 |
Temperature (°C) | Digester Volume (L) | Working Volume (L) | Substrate | SMY (NmL/gVS) | |
---|---|---|---|---|---|
Current study | 37 | 20 L | 12 L | BM | 186.1 |
Current study | 37 | 20 L | 12 L | BM + FW | 228.1 |
Sun et al., 2015 [27] | 37 | 500 mL | 400 mL | BM | 308 |
Jarwar et al., 2023 [28] | 37 | 500 mL | 375 mL | BM | 241.95 |
Cu et al., 2015 [29] | 37 | 1.1 L | nd | BM | 153.1 |
Carotenuto et al., 2020 [30] | 37 | 280 mL | 80 mL | BM | 210 |
Parameters | Mono-Digestion | Co-Digestion | |
---|---|---|---|
Measured data | SMY (NmL/g VS added) | 186.1 | 228.1 |
First-order model | Pmax (NmL/g VS added) | 230.2 | - |
k (1/d) | 0.053 | - | |
Adj. R-Square | 0.986 | - | |
Modified Gompertz model | Pmax (NmL/g VS added) | 191.1 | 249.1 |
Rm (mL/g VS/d) | 9.0 | 11.8 | |
λ (d) | 0 | 8.4 | |
Adj. R-Square | 0.992 | 0.994 |
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Vogel, F.W.; Carlotto, N.; Wang, Z.; González-Herrero, R.; Giménez, J.B.; Seco, A.; Porcar, M. Simplicity Hits the Gas: A Robust, DIY Biogas Reactor Holds Potential in Research and Education in Bioeconomy. Fermentation 2023, 9, 845. https://doi.org/10.3390/fermentation9090845
Vogel FW, Carlotto N, Wang Z, González-Herrero R, Giménez JB, Seco A, Porcar M. Simplicity Hits the Gas: A Robust, DIY Biogas Reactor Holds Potential in Research and Education in Bioeconomy. Fermentation. 2023; 9(9):845. https://doi.org/10.3390/fermentation9090845
Chicago/Turabian StyleVogel, Felipe Werle, Nicolas Carlotto, Zhongzhong Wang, Raquel González-Herrero, Juan Bautista Giménez, Aurora Seco, and Manuel Porcar. 2023. "Simplicity Hits the Gas: A Robust, DIY Biogas Reactor Holds Potential in Research and Education in Bioeconomy" Fermentation 9, no. 9: 845. https://doi.org/10.3390/fermentation9090845