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
作者： Zhou, Huyi 1 ; Han, Shanming 1 ; Shen, Kuizhong 1 ; Zhao, Mengke 1 ; Huang, Chen 1 ; Fang, Guigan 1 ; Wu, Yiqiang 5 ; Huang, Hongying 6 ; He, Zhibin 7 ;
作者机构： 1.CAF, Inst Chem Ind Forestry Prod, Nanjing 210042, Peoples R China
2.SFA, Key Lab Forest Chem Engn, Nanjing 210042, Peoples R China
3.CAF UT Innovat Platform Lignocellulos Biomass Sci, Nanjing 210042, Peoples R China
4.Nanjing Forestry Univ, Collaborat Innovat Ctr High Efficient Proc & Utili, Nanjing 210037, Peoples R China
5.Cent South Univ Forestry & Technol, Sch Mat Sci & Engn, Changsha 410004, Hunan, Peoples R China
6.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Jiangsu, Peoples R China
7.Univ New Brunswick, Fredericton, NB E3B 5A3, Canada
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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