不同添加剂对混合物料厌氧消化的影响研究：纳米氧化锌、纳米氧化亚铁和纳米氧化铝的比较
Study on the effect of different additives on the anaerobic digestion of hybrid : Comparison of nano-ZnO, nano-FeO and nano-AlO.
作者信息
Zhao Hongmei, Pu Haiping, Yang Zhaorong
机构信息
Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, PR China.
School of Science, Yunnan Agricultural University, Kunming, 650201, China.
出版信息
Heliyon. 2023 May 25;9(6):e16313. doi: 10.1016/j.heliyon.2023.e16313. eCollection 2023 Jun.
The effects of three nanomaterials (ZnO, AlO, and FeO) on the wet and dry anaerobic digestion (AD) processes of hybrid were assessed over 33 days and the microbial communities of dry AD systems were studied. The results demonstrated that biogas production improved by 72.2% and 33.6% when nanoporous AlO (nano-AlO) and nano-FeO were added during dry AD, respectively. However, biogas production decreased by 39.4% with nano-ZnO. Kinetic analysis showed that the three nanomaterials could shorten the lag phase of the AD sludge, while the 16S rRNA gene amplicon sequencing results demonstrated that microbes such as and were enriched in the nano-AlO reactors and methanogenic communities community such as sp., sp., and sp., which were enriched in the nano-AlO and nano-FeO reactors. However, the microbial community and some methanogenic communities diversity and richness were inhibited by the addition of nano-ZnO.
在33天的时间里评估了三种纳米材料（ZnO、AlO和FeO）对混合物料湿式和干式厌氧消化（AD）过程的影响，并研究了干式AD系统的微生物群落。结果表明，在干式AD过程中添加纳米多孔AlO（nano - AlO）和纳米FeO时，沼气产量分别提高了72.2%和33.6%。然而，添加纳米ZnO时沼气产量下降了39.4%。动力学分析表明，这三种纳米材料可以缩短AD污泥的滞后期，而16S rRNA基因扩增子测序结果表明，诸如 和 等微生物在nano - AlO反应器中富集，产甲烷菌群落如 属、 属和 属在nano - AlO和纳米FeO反应器中富集。然而，添加纳米ZnO会抑制微生物群落以及一些产甲烷菌群落的多样性和丰富度。
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