基于文献计量学的秸秆厌氧消化生产沼气研究进展

Analysis of Research Progress on Biogas Production by Anaerobic Digestion of Straw Based on Bibliometrics

由于化石燃料的污染性和不可再生性,推进多元能源供应体系是必然趋势。秸秆厌氧发酵生产可再生能源沼气,是一种合适的选择。当前研究的重点是提高木质纤维素生物质的降解率以及提高生产甲烷的效率和质量。基于文献计量学方法,对2002~2021年与秸秆厌氧消化生产沼气研究相关的1708篇文献进行了回顾。厌氧消化是一个较为成熟的领域,目前的研究方向主要包括厌氧消化过程中的预处理、操作参数、共消化等相关研究,利用科学图谱(Citespace)软件分析显示:当前的研究热点包括直接种间电子转移(DIET)和木质素降解真菌(Pleurotusostreatus),共被引文献聚类网络也印证了生物炭作为导电材料用于直接种间电子转移相关研究已成为研究热点的新聚集地的潜力,在以后的研究中可以依据生物炭具有导电性、吸附性以及可以作为支撑材料的特点,根据厌氧消化的需要设计专门的生物炭。

Due to the pollution and non-renewability of fossil fuels,it is an inevitable trend to promote a multiple energy supply system.Anaerobic digestion(AD)for biogas production from straw is a suitable choice.To improve the degradation rate of lignocellulosic biomass and the quality of methane production,numerous studies had been carried out on pretreatment,co-digestion,digestion parameters and microbial communities.This paper aims to review 1708 publications related to research on AD for biogas production from straw during 2002-2021 based on bibliometric analysis.The visualization network produced by Citespace objectively presented that the current research frontier is direct interspecies electron transfer.Burst keywords"interspecies electron transfer"also testify the potential of this field to become a new gathering place for research hotspots.In future research,it can be considered to design special biochar according to the needs of anaerobic digestion according to its characteristics of conductivity,adsorption and support material.