生物炭和褐煤对麦秸厌氧发酵产甲烷特性的影响

胡传义; 辛娅; 李杰; 王殿龙; 钱宇涵; 邹楚

doi:10.19912/j.0254-0096.tynxb.2024-0625

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (8) : 184-189. DOI: 10.19912/j.0254-0096.tynxb.2024-0625

生物炭和褐煤对麦秸厌氧发酵产甲烷特性的影响

胡传义, 辛娅, 李杰, 王殿龙, 钱宇涵, 邹楚

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INFLUENCE OF BIOCHAR AND LIGNITE ON METHANE PRODUCTION OF CHARATERISTICS OF ANAEROBIC DIGESTION OF WHEAT STRAW

Hu Chuanyi, Xin Ya, Li Jie, Wang Dianlong, Qian Yuhan, Zou Chu

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摘要

对生物炭和褐煤提高小麦秸秆厌氧发酵沼气产率进行实验研究,探索生物炭和褐煤添加对厌氧发酵沼气产率、纤维素和半纤维素降解及厌氧发酵细菌和古菌结构的影响。结果表明：生物炭和褐煤促进了麦秸沼气产率、纤维素和半纤维素降解。褐煤组优于生物炭组,生物炭组优于对照组,生物炭和褐煤添加实验组的沼气产率分别提高了16.8%和20.4%,褐煤实验组沼气产率和平均甲烷含量分别为327.0 mL/g和61.5%。从纤维素和半纤维素降解来看,添加生物炭和褐煤后,纤维素降解由18.32%降低至12.50%~13.69%;半纤维素含量也从9.81%进一步降低至6.52%~7.95%。微生物菌群分析表明生物炭和褐煤对厌氧细菌的影响不大,采用褐煤作为添加剂可丰富古菌群落和代谢途径,该研究获得了生物炭和褐煤在促进麦秸厌氧产甲烷过程中的机制。

Abstract

The anaerobic digestion （AD） of wheat straw with biochar and lignite addition was studied. The effects of biochar and lignite addition on biogas yield, cellulose and hemicellulose degradation, and the structure of bacteria and archaea in AD were explored. The results indicate that biochar and lignite can promote biogas yield and cellulose and hemicellulose degradation during AD of wheat straw. The lignite group is better than the biochar group, with biogas yield increasing by 16.8% and 20.4%, respectively, compared to the control. For the lignite experimental group, the biogas yield and average methane content are 327.0 mL/g and 61.5%, respectively. Regarding cellulose and hemicellulose degradation, after the addition of biochar and lignite, cellulose content decreases from 18.32% to 12.50%-13.69%, and hemicellulose content further decreases from 9.81% to 6.52%-7.95%. Microbial community analysis show that biochar and lignite have little effect on bacteria, while the use of lignite as an additive enriches the archaeal community and metabolic pathways. This study reveals the mechanism by which biochar and lignite improve the biogas yield of wheat straw.

导出引用

胡传义, 辛娅, 李杰, 王殿龙, 钱宇涵, 邹楚. 生物炭和褐煤对麦秸厌氧发酵产甲烷特性的影响[J]. 太阳能学报. 2025, 46(8): 184-189 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0625

Hu Chuanyi, Xin Ya, Li Jie, Wang Dianlong, Qian Yuhan, Zou Chu. INFLUENCE OF BIOCHAR AND LIGNITE ON METHANE PRODUCTION OF CHARATERISTICS OF ANAEROBIC DIGESTION OF WHEAT STRAW[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 184-189 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0625

中图分类号： X705 S216.3

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