通过生物电化学的功率到气体辅助厌氧消化提高龙舌兰酒糟中的甲烷产量和去除有机物。
Enhanced methane production and organic matter removal from tequila vinasses by anaerobic digestion assisted via bioelectrochemical power-to-gas.
机构信息
Subcoordinación de Tratamiento de Aguas Residuales, Instituto Mexicano de Tecnología del Agua, Paseo Cuauhnáhuac 8532, Progreso, Jiutepec, Morelos C.P. 62550, Mexico.
Facultad de Ingeniería, Universidad Nacional Autónoma de México, Paseo Cuauhnahuac 8532, Progreso, Jiutepec, Morelos C.P. 62550, Mexico.
出版信息
Bioresour Technol. 2021 Jan;320(Pt A):124344. doi: 10.1016/j.biortech.2020.124344. Epub 2020 Oct 31.
In this study, showed a strategy to generate methane and remove organic matter removal from tequila vinasses through of anaerobic digestion assisted via bioelectrochemical power to-gas. Specific methanogenic activity (SMA) assays in batch mode were tested and a single-stage bioelectrochemical upflow anaerobic sludge blanket reactor (UASB) was evaluated to generate methane during tequila vinasses treatment. The results showed that the methane production in the bioelectrochemical UASB reactor applied at low voltage of 0.5 V and under HRT of 7 d was higher than the in the conventional UASB reactor. The specific methane production rate in bioelectrochemical UASB reactor was up to 2.9 NL CH/L d, with a maximum methane yield of 0.32 NL CH/g COD. Similar COD removals were observed in the bioelectrochemical UASB reactor and conventional reactors (92-93%). High carbon dioxide reduction and hydrogen production were observed in the bioelectrochemical UASB reactor.
在这项研究中，展示了一种通过生物电化学辅助的厌氧消化从龙舌兰酒废渣中产生甲烷和去除有机物的策略。在分批模式下进行了特定产甲烷活性（SMA）测定，并评估了单级生物电化学上流式厌氧污泥床（UASB）反应器在处理龙舌兰酒废渣时产生甲烷的能力。结果表明，在 0.5 V 低电压和 7 d HRT 下应用于生物电化学 UASB 反应器的甲烷生成量高于传统 UASB 反应器。生物电化学 UASB 反应器的特定甲烷生成速率高达 2.9 NL CH/L d，最大甲烷产率为 0.32 NL CH/g COD。生物电化学 UASB 反应器和传统反应器的 COD 去除率相似（92-93%）。在生物电化学 UASB 反应器中观察到高二氧化碳还原和氢气产生。
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