Insights into hydrothermal deconstruction and humification of vegetable waste by non-catalytic steam explosion
文献类型： 外文期刊
作者： Sui, Wenjie 1 ; Li, Shunqin 2 ; Chen, Yue 2 ; Wang, Guanhua 3 ; Liu, Dan 4 ; Jia, Hongyu 5 ; Wu, Tao 2 ; Zhang, Min 2 ;
作者机构： 1.All China Federat Supply & Mkt Cooperat, Jinan Fruit Res Inst, Jinan 250014, Peoples R China
2.Tianjin Univ Sci & Technol, Coll Food Sci & Engn, State Key Lab Food Nutr & Safety, Tianjin 300457, Peoples R China
3.Tianjin Univ Sci & Technol, Coll Light Ind Sci & Engn, Tianjin Key Lab Pulp & Paper, Tianjin 300457, Peoples R China
4.Tianjin Jianfeng Nat Prod R&D Co Ltd, Tianjin 300457, Peoples R China
5.Shandong Acad Agr Sci, Inst Agr Resources & Environm, Jinan 250132, Peoples R China
6.Tianjin Agr Univ, Tianjin 300384, Peoples R China
关键词： Vegetable waste; Steam explosion; Humification; Fulvic acids; Hydrothermal process
期刊名称：JOURNAL OF ENVIRONMENTAL MANAGEMENT （ 影响因子：8.4； 五年影响因子：8.6 ）
ISSN： 0301-4797
年卷期： 2025 年 373 卷
页码：
收录情况： SCI
摘要： Source minimization and valorization of vegetable waste has attracted considerable interests recently, but has been limited by its distinctive features of high humidity and perishability. To mitigate these challenges and draw upon its features, this study provides a novel non-catalytic hydrothermal process for rapid humification of broccoli waste by steam explosion (SE). The highest humic substance, fulvic acid (FA) and humic acid yields of 23.48 wt%, 18.70 wt% and 6.07 wt% were obtained within 30 min. Thermal-acidic condition and instantaneous decompression action proved to be favorable for substrate deconstruction, precursor production and humus formation. Potential pathways of hydrothermal humification of vegetable waste were revealed after clarifying the molecular level structure of FA by EA, FTIR, XPS, 2D-NMR and Py-GCMS. This work fills the knowledge gap in the mechanism of hydrothermal humification of vegetable waste and provides technical support for enhancing its agronomic value and efficient cycle in clean production.
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