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Process water from hydrothermal carbonization: The impacts on the aquatic dissolved organic matter feature and microbial network at the soil-water interface

文献类型： 外文期刊

作者： Zhang, Qiuyue 1 ; Wang, Bingyu 1 ; Feng, Yanfang 2 ; Feng, Yuanyuan 2 ; Li, Jing 2 ; Ding, Shudong 2 ; He, Huayong 2 ; Xie, Huifang 1 ;

作者机构： 1.Nanjing Univ Sci & Technol, Sch Environm & Biol Engn, Jiangsu Key Lab Chem Pollut Control & Resources Re, Nanjing 210094, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Key Lab Agroenvironm Downstream Yangtze Plain, Natl Agr Expt Stn Agr Environm,Minist Agr & Rural, Nanjing, Peoples R China

3.Jiangsu Univ, Sch Environm & Safety Engn, Zhenjiang 212001, Peoples R China

关键词： Aquatic DOM; Hydrothermal carbonization; Process water; Periphyton microbial community

期刊名称：JOURNAL OF CLEANER PRODUCTION （ 影响因子：11.1； 五年影响因子：11.0 ）

ISSN： 0959-6526

年卷期： 2023 年 397 卷

页码：

收录情况： SCI

摘要： This study aimed to explore the effects of process water generated by hydrothermal carbonization (HTC-PW) at 180 degrees C and 260 degrees C on the soil-water environment. The input of HTC-PW changed the aquatic DOM components, such as the C1-C3 component decreased by 51.92-100%, and the C4 component increased by 81.40-100%. HTC-PW promoted the development of Proteobacteria and Firmicutes with relative abundance ratios of 1.75-2.31 and 1.4-3.25 times higher than CK, with a positive association revealed with the carbon conversion indicators. Furthermore, Proteobacteria play a critical role in bacterial networks exposed to high-temperature HTC-PW due to the facilitated nutrient exchange and metabolite. The prevalence of Ciliophora and Chlorophyta positively correlated with the nutrient compounds of HTC-PW. Moreover, the higher percentage of positive correlation in fungal networks was 75.26%, which implicated that microbial cooperation of fungi was more pronounced on an equal footing exposed to low-temperature HTC-PW. This study provides a theoretical basis for analyzing the potential ecological effects of HTC-PW in the soil-water environment associated with HTC applications, intending to provide parameters and guidance for the rational disposal of HTC-PW.

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