杨茜, 鞠美庭, 李维尊. 秸秆厌氧消化产甲烷的研究进展[J]. 农业工程学报, 2016, 32(14): 232-242. DOI: 10.11975/j.issn.1002-6819.2016.14.031
    引用本文: 杨茜, 鞠美庭, 李维尊. 秸秆厌氧消化产甲烷的研究进展[J]. 农业工程学报, 2016, 32(14): 232-242. DOI: 10.11975/j.issn.1002-6819.2016.14.031
    Yang Qian, Ju Meiting, Li Weizun. Review of methane production from straws anaerobic digestion[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2016, 32(14): 232-242. DOI: 10.11975/j.issn.1002-6819.2016.14.031
    Citation: Yang Qian, Ju Meiting, Li Weizun. Review of methane production from straws anaerobic digestion[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2016, 32(14): 232-242. DOI: 10.11975/j.issn.1002-6819.2016.14.031

    秸秆厌氧消化产甲烷的研究进展

    Review of methane production from straws anaerobic digestion

    • 摘要: 近年来,随着国际能源紧缺与环境污染的日趋严重,秸秆厌氧消化产甲烷技术再次成为国内外学者研究生物质固废处理的热点之一。农作物秸秆厌氧消化产甲烷为大量廉价易得的生物资源转化为可再生能源提供了一个新机会。通过厌氧消化,不仅改善农村生态环境质量,还产生了清洁能源沼气,真正实现变废为宝,对解决农村用能和种植业污染问题有重要意义,也是目前中国最有希望实现产业化的生物质能源之一。然而,由于秸秆的特殊物理化学结构,使得微生物与酶很难对其吸附、降解,并因此限制了秸秆厌氧消化的推广、应用。尽管在当前中国的鼓励政策下,许多秸秆沼气示范工程建成并投入生产,但实际运行中依旧有些问题亟待解决。该文根据国内外关于秸秆厌氧消化产甲烷技术的最新研究成果,基于厌氧消化原理和原料特性分析的基础上,分析了影响秸秆产甲烷的因素及不足,总结了产气优化的方法,展望了秸秆厌氧消化产甲烷的发展方向。该项研究结果对推广秸秆厌氧消化产甲烷、加快生物质固废的资源化成果转化具有积极的推动意义。

       

      Abstract: Abstract: With the increasingly serious energy shortage and environmental pollution, anaerobic digestion of agricultural straws is one of the hotspots in recent years which the domestic and foreign scholars study on biomass solid waste treatment. Anaerobic digestion (AD) of agricultural straws provides an excellent chance to convert abundant bioresources into renewable energy. The anaerobic digestion of straws not only improve the quality of the rural ecological environment, also produced a clean energy, biogas, which made the solid biomass wastes into "wealth". Anaerobic digestion of straws is currently one of the most hope to realize the industrialization of biomass energy in China. However, the special physico-chemical property of straws creates a resistant for microorganism and enzymes to degrade during the hydrolytic acidification process and methanogenic process, and thus limited application and promotion of straws. Although the biogas equipment manufacture and biogas plants were established and encouraged by the incentive polices in China, some questions still existed in anaerobic digestion, especially for the large-scale application. According to the latest research results of the domestic and foreign on relevant anaerobic digestion of agricultural straws, this article mainly highlighted the current status of agricultural straws anaerobic digestion and discussed its challenges. Based on the anaerobic digestion principle and material characteristics, this paper was divided into five parts: 1) principle analysis of anaerobic digestion; 2) structural compositions of straws; 3) influence factors and shortages of anaerobic digestion of straws; 4) optimization of biogas and methane production; 5) prospect. This review paper will have a positive significance to promote anaerobic digestion of agricultural straws and to speed up the achievements transformation of utilization of biomass solid wastes.

       

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