Cui Zhiqiang, Li Pengfei, Pan Xiaohui, Yuan Yongkang, Li Gang, Jiao Youzhou, Petracchini Francesco, Hou Tingting, He Chao
Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, Henan, China.
Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, Henan, China; Henan University of Engineering, Zhengzhou 451191, Henan, China.
Bioresour Technol. 2025 Feb;418:131997. doi: 10.1016/j.biortech.2024.131997. Epub 2024 Dec 17.
Nanobubbles (NBs) technology has been proven to promote methane production from anaerobic digestion (AD). In this study, the synergistic effects of (CH + CO)-nanobubble water ((CH + CO)-NBW) combined with varying particle sizes of corn straw on the AD were investigated. As findings, adding (CH + CO)-NBW effectively promoted the methane production from AD of corn straw with different particle sizes. The maximum cumulative methane yield (186.42 mL/ g-volatile solids) was achieved in Group a with the addition of (CH + CO)-NBW, representing a 16.89 % increase compared to the control. Furthermore, (CH + CO)-NBW could enhance the enzymatic activity. The activities of β-glucosidase and coenzyme F were increased by 6.70 % and 11.48 %, respectively. The results of microbial community structure revealed that the addition of (CH + CO)-NBW could improve the abundance of dominant bacteria (norank_JS1, norank_Aminicenantales, and Bacteroidetes_vadinHA17) and archaea (Methanomassiliicoccaceae, Methanobacteriaceae, and norank_Bathyarchaeia). This study provides new insights into the application of nanobubbles in the AD of biomass.
纳米气泡（NBs）技术已被证明可促进厌氧消化（AD）过程中的甲烷生成。在本研究中，研究了（CH + CO）-纳米气泡水（（CH + CO）-NBW）与不同粒径的玉米秸秆相结合对厌氧消化的协同作用。结果表明，添加（CH + CO）-NBW有效地促进了不同粒径玉米秸秆厌氧消化过程中的甲烷生成。添加（CH + CO）-NBW的a组实现了最大累积甲烷产量（186.42 mL/g挥发性固体），与对照组相比增加了16.89%。此外，（CH + CO）-NBW可提高酶活性。β-葡萄糖苷酶和辅酶F的活性分别提高了6.70%和11.48%。微生物群落结构结果表明，添加（CH + CO）-NBW可提高优势细菌（norank_JS1、norank_Aminicenantales和Bacteroidetes_vadinHA17）和古菌（甲烷鬃毛球菌科、甲烷杆菌科和norank_Bathyarchaeia）的丰度。本研究为纳米气泡在生物质厌氧消化中的应用提供了新的见解。
