Sustainable management and recycling of food waste anaerobic digestate: A review

被引：194
作者：
Dutta, Shanta [1 ]
He, Mingjing [1 ]
Xiong, Xinni [1 ]
Tsang, Daniel C. W. [1 ]
机构：
[1] Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2021年 / 341卷
关键词：
Hydrochar production; Engineered biochar; Pyrolysis; Hydrothermal carbonisation; Bioenergy recovery; SOLID-STATE FERMENTATION; HYDROTHERMAL CARBONIZATION; BIOWASTE; VALORISATION; TECHNOLOGIES; FEEDSTOCK; FRACTION; LAND;
D O I：
10.1016/j.biortech.2021.125915
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Anaerobic digestion (AD) is a widely used technology to valorise food waste for biogas production yet a considerable amount of digestate remains under-utilised. Sustainable management and recycling of the nutrientrich food waste anaerobic digestate (FWD) is highly desirable for closing resource loop and actualising circular economy. This work reviews the distinct properties of FWD and the existing treatment technologies. FWD shows great prospects as a nutrient source for microalgal cultivation and biofuel production. Emerging technologies such as thermal conversion (e.g., pyrolysis and hydrothermal treatment) of FWD into value-added products such as functionalised biochar/hydrochar with diverse applications would be attractive and warrant further research investigation. Integrated AD with subsequent valorisation facilities is highly encouraged to achieve complete utilisation of resources and reduce carbon emissions.
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页数：8
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