PDF
Full
Outline
To investigate the feasibility of anaerobic digestion of antibiotic fermentation residues（AFR）as sole substrates, several typical AFR, including erythromycin fermentation residue（EFR）, cephalosporin fermentation residue（CFR）, and penicillin fermentation residue（PFR）were chosen as raw materials for digestion in this study. Batch assays of methane production potential and kinetics experiments were conducted at mesophilic temperature（35±1℃）to explore the basic characteristics of anaerobic digestion of different AFR. Mass balance and correlations between basic characteristics of raw materials and digestion performance were compared and contrasted. Results showed that EFR had the highest methane production potential, approximately 226mL/g VS, which was 27.0% and 20.2% higher than CFR and PFR, respectively. Distinct kinetic characteristics and metabolic activity differences were exhibited by different antibiotic fermentation residues during anaerobic fermentation. The highest biogas production rate, which was 13.2mL/（g VS·d）, was found in PFR. A clear two-stage characteristic was exhibited by EFR, with the first-order kinetic constants K1 and K2 being 0.0336 and 0.2012d-1, respectively. Material balance verification confirmed the reliability of the experimental results, and the remaining insoluble substances significantly impact the startup and stability of the anaerobic system. Correlation analysis indicated that the parameters of SCOD/TCOD, C/N, protein, and fat content in the fermentation residues are important for assessing their performance in anaerobic fermentation, suggesting that optimizing the characteristics of the fermentation residues can improve fermentation efficiency. It was demonstrated that antibiotic fermentation residues treated with antibiotic removal can serve as a single substrate for anaerobic fermentation, providing a new solution for the resource utilization of fermentation residues.
PDF
47
22
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
