Integration of Shiitake cultivation and solid-state anaerobic digestion for utilization of woody biomass
Integration of Shiitake cultivation and solid-state anaerobic digestion for utilization of woody biomass
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DOI：
10.1016/j.biortech.2015.01.102
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发表时间：
2015-04-01
影响因子：
11.4
通讯作者：
Li, Yebo
中科院分区：
文献类型：
--
作者：
Lin, Yunqin;Ge, Xumeng;Li, Yebo
预处理技术不仅可以降低木质生物质的顽固性，而且可以实现高的效益成本比，是利用木质生物质生产生物能源的理想技术。在这项研究中，提出了一个集成的过程，并进行了预处理木屑通过香菇培养提高甲烷产量在固态厌氧消化（SS-AD），同时生产蘑菇作为一个高价值的副产品。香菇栽培使用木屑作为主要的基板成分获得蘑菇产量与那些使用商业基板。酶消化率和累积甲烷产量（133-160 L kg（-1）VS在62天的SS-AD）的预处理的基板（废蘑菇基板）是至少1.5倍的未经处理的木屑。与单一SS-AD工艺相比，集成香菇栽培/SS-AD工艺使每千克木片的甲烷产量和固体废物减少量分别增加约1.5倍和8倍。(c)2015爱思唯尔有限公司版权所有。
Pretreatment technologies that can not only reduce the recalcitrance of woody biomass but also achieve a high benefit-cost ratio are desirable for bioenergy production from woody biomass. In this study, an integrated process was proposed and conducted by pretreating woodchips via Shiitake cultivation for improved methane yield during solid-state anaerobic digestion (SS-AD), and simultaneously producing mushrooms as a high-value co-product. Shiitake cultivation using woodchips as the main substrate ingredient obtained mushroom yields comparable to those using a commercial substrate. Enzymatic digestibility and cumulative methane yields (133-160 L kg(-1) VS during 62 days of SS-AD) of pretreated substrates (spent mushroom substrate) were at least 1.5 times as high as those of untreated woodchips. Compared to a sole SS-AD process, the integrated Shiitake cultivation/SS-AD process increased methane production and solid waste reduction per kilogram of woodchips by about 1.5 and 8 times, respectively. (c) 2015 Elsevier Ltd. All rights reserved.