文献类型： 外文期刊

作者： Chen, Xuejiao ¹ ; Zhang, Jinhong ³ ; Lin, Qimei ² ; Li, Guitong ² ; Zhao, Xiaorong ² ;

作者机构： 1.Xihua Univ, Sch Food Sci & Bioengn, Chengdu 610039, Peoples R China

2.China Agr Univ, Coll Land Sci & Technol, Beijing 100193, Peoples R China

3.Shandong Acad Agr Sci, Jinan 250100, Peoples R China

4.Guangdong Acad Agr Sci, Agr Resources & Environm Inst, Guangzhou 510640, Peoples R China

关键词： Wet waste biomass; Hydrochar; Spent liquor; BTX; VOCs; Environmental risks

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：5.19； 五年影响因子：5.053 ）

ISSN： 0944-1344

年卷期：

页码：

收录情况： SCI

摘要： Landfill of waste biomass not only poses a threat to environmental protection but also leads to a great waste of biomass resources. Hydrothermal carbonization (HTC) has been considered a promising method to convert the wet biomass into hydrochar, a high-value-added product with multiple application potentials. The cabbage waste, typical wet waste biomass with a huge production per year, was hydrothermally carbonized under 190 degrees C and 260 degrees C, respectively. The results indicated that the majority of nutrients from feedstock were dissolved in spent liquor during HTC, with only a few amounts retained on hydrochar. Temperature showed a more significant impact on hydrochar properties than retention time, which enables hydrochar to be potentially used as a soil conditioner. Particularly, the hydrochar produced at 190 degrees C could improve plant nutrition in the short term, while that produced at 260 degrees C may benefit in C sequestration. Moreover, the hydrochar dominated by meso/macropores (> 90%) would be conducive to the storage of plant-available water. But both BTX and VOCs may release during hydrochar application; thus, further field experiments are needed to test the environmental risks of hydrochar when applied as a soil amendment.