Chemically Enhanced Primary Sludge as an Anaerobic Co-Digestion Additive for Biogas Production from Food Waste
Abstract
:1. Introduction
2. Materials and Methods
2.1. Substrate Preparation and Inoculums
2.2. CoAD Batch Experiment Setup
2.3. Analytical Methods
3. Results and Discussion
3.1. Organic Matters Solubilization
3.2. VFAs Production
3.3. Biogas Production
3.4. Enzymes Activity
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Parameters | M0:5 | M1:4 | M2:3 | M3:2 | M4:1 | M5:0 |
---|---|---|---|---|---|---|
Initial volatile solids (VSs) | 21.12 ± 0.4 | 19.97 ± 0.52 | 18.82 ± 0.58 | 17.66 ± 0.54 | 16.51 ± 0.61 | 15.36 ± 0.6 |
End VSs | 13.19 ± 0.5 | 12.10 ± 0.33 | 11.16 ± 0.28 | 10.30 ± 0.31 | 10.21 ± 0.42 | 11.59 ± 0.41 |
VSs removal (%) | 37.56 ± 0.82 | 39.43 ± 1.32 | 40.68 ± 3.42 | 41.70 ± 2.03 | 38.12 ± 0.81 | 24.53 ± 0.65 |
Biogas yield (mL/g VSremoval) | 86.93 ± 7.8 | 108.99 ± 7.8 | 212.16 ± 8.4 | 288.42 ± 6.7 | 446.39 ± 7.1 | 247.50 ± 5.3 |
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Kang, X.; Liu, Y. Chemically Enhanced Primary Sludge as an Anaerobic Co-Digestion Additive for Biogas Production from Food Waste. Processes 2019, 7, 709. https://doi.org/10.3390/pr7100709
Kang X, Liu Y. Chemically Enhanced Primary Sludge as an Anaerobic Co-Digestion Additive for Biogas Production from Food Waste. Processes. 2019; 7(10):709. https://doi.org/10.3390/pr7100709
Chicago/Turabian StyleKang, Xiaorong, and Yali Liu. 2019. "Chemically Enhanced Primary Sludge as an Anaerobic Co-Digestion Additive for Biogas Production from Food Waste" Processes 7, no. 10: 709. https://doi.org/10.3390/pr7100709