期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 9, 期 46, 页码 15506-15513出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.1c05175
关键词
elephant manure; biogas; nanocellulose; manure management; tensile properties
资金
- OeAD [WTZ ZA 03/2017]
- CSIR, Port Elisabeth, South Africa
- Institute of Materials Chemistry of University of Vienna [371300]
- FinnCERES Materials Bioeconomy Ecosystem
The demand for animal products has increased significantly due to population growth and higher living standards. Livestock farming generates large quantities of waste, particularly manure, which is currently underutilized. A proposed manure management system aims to produce biogas, fertilizer precursors, and high-value (nano)cellulose.
The demand for animal products has significantly increased over the past decades as a result of the growing population and the heightened standards of living. Increased livestock farming does not only yield desired products but also significant quantities of wastes, particularly manure whose storage and application are being monitored with a tightening network of regulations. The problem is that manure is considered merely as a substrate for biogas production or as a fertilizer, whereas the substantial portion of fibers residing in herbivore manure has remained underutilized. Here, we propose a manure management system, in which not only biogas and fertilizer precursors but also high-value materials in the form of (nano)cellulose are produced. We show that high biogas yields can be achieved for elephant manure and the remaining substrate enables effortless isolation of cellulose nanofibers, leading to a significant reduction of the environmental impact compared with traditional systems based on wood.
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