新型微生物共生物预处理木屑废料以增强生物甲烷化作用。
Effective bio-pretreatment of sawdust waste with a novel microbial consortium for enhanced biomethanation.
机构信息
Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, 212013 Zhenjiang, China; Botany Department, Faculty of Science, Tanta University, 31527 Tanta, Egypt.
School of Energy and Power Engineering, Jiangsu University, 212013 Zhenjiang, China; Botany Department, Faculty of Science, Tanta University, 31527 Tanta, Egypt.
出版信息
Bioresour Technol. 2017 Aug;238:425-432. doi: 10.1016/j.biortech.2017.03.187. Epub 2017 Apr 1.
Anaerobic digestion (AD) is considered an efficient cost-effective technology for sustainable biogas production from lignocellulosic wastes. A novel lignocellulosic degradation microbial consortium (LCDC) was isolated from rotten sawdust, and further used for sawdust pretreatment prior to AD. Results showed that pretreatment of sawdust for 10days led to significant reduction in cellulose, hemicelluloses, and lignin contents by 37.5%, 39.6%, and 56.7%, respectively, with respect to the control. In addition, the pretreatment enhanced cumulative biogas yield, which reached its maximum value of 312.0LkgVS after 28days of AD (25.6% higher than the corresponding control). Moreover, the maximum significant cumulative methane yield was recorded after 28days of AD of the pretreated sawdust (155.2LkgVS), which represented 72.6% higher than the corresponding control. Significantly higher biomethane yield from sawdust pretreated with LCDC confirms that this process is more economical than the previous reports.
厌氧消化（AD）被认为是一种从木质纤维素废物中高效、经济地生产可持续沼气的技术。从腐朽的木屑中分离出一种新型的木质纤维素降解微生物联合体（LCDC），并进一步用于 AD 之前的木屑预处理。结果表明，与对照相比，木屑预处理 10 天可使纤维素、半纤维素和木质素的含量分别显著减少 37.5%、39.6%和 56.7%。此外，预处理提高了累积沼气产量，在 AD 28 天后达到最大值 312.0LkgVS（比相应的对照高 25.6%）。此外，在 AD 28 天后，预处理木屑的最大累积甲烷产量最高（155.2LkgVS），比相应的对照高 72.6%。LCDC 预处理木屑产生的更高生物甲烷产量证实，该工艺比之前的报告更经济。
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