A novel clean bio-pulping process for rice straw based on aerobic fermentation coupled with mechanical refining

文献类型： 外文期刊

第一作者： Zhou, Huyi

作者： Zhou, Huyi;Han, Shanming;Shen, Kuizhong;Zhao, Mengke;Huang, Chen;Fang, Guigan;Zhou, Huyi;Han, Shanming;Shen, Kuizhong;Zhao, Mengke;Huang, Chen;Fang, Guigan;Zhou, Huyi;Han, Shanming;Shen, Kuizhong;Zhao, Mengke;Huang, Chen;Fang, Guigan;Zhou, Huyi;Han, Shanming;Shen, Kuizhong;Zhao, Mengke;Huang, Chen;Fang, Guigan;Wu, Yiqiang;Huang, Hongying;He, Zhibin

作者机构：

关键词： Agricultural wastes; Biological pretreatment; Mechanical pulping; Energy saving

期刊名称：ENVIRONMENTAL TECHNOLOGY & INNOVATION （ 影响因子：7.1； 五年影响因子：6.9 ）

ISSN： 2352-1864

年卷期： 2023 年 31 卷

页码：

收录情况： SCI

摘要： In this study, the effect of aerobic fermentation pretreatment on bio-mechanical pulping of rice straw was investigated with compound bacterial agents (2 geobacillus sp, 1 parageobacillus sp and 4 thermos sp). The microbial community, chemical composition, surface morphology, crystal index and other parameters were monitored at various time intervals during the aerobic fermentation process. The chemical constituents of rice straw (mainly cellulose, hemicellulose and lignin) were partly degraded and dissolved in the fermentation process, leading to increased surface roughness and crystallinity index. The bio-mechanical pulping process was optimized in terms of Canadian freeness standard (CSF), specific energy consumption (SEC), water retention value (WRV), pulping yield, and physical properties of the resultant pulp. Under the optimal process conditions, the fermentation pre-treatment resulted in about 54% energy saving, 13% WRV improvement, and 81% increase in tensile strength at a given pulp freeness. (c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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