Life Cycle Assessment of Horse Manure Treatment

Energies

卷:9

Ola Eriksson¹  Daniel Jonsson¹  Åsa Hadin¹  Jay Hennessy² 

[1] Department of Building, Energy and Environmental Engineering, Faculty of Engineering and Sustainable Development, University of Gävle, Kungsbäcksvägen 47, SE-801 76 Gävle, Sweden;

[2] SP Technical Research Institute of Sweden, Box 857, SE-501 15 Borås, Sweden;

关键词: horse manure;    bedding material;    life cycle assessment (LCA);    anaerobic digestion;    incineration;    composting;    biogas;    combustion;   

DOI  :  10.3390/en9121011

来源: DOAJ

【 摘 要 】

Horse manure consists of feces, urine, and varying amounts of various bedding materials. The management of horse manure causes environmental problems when emissions occur during the decomposition of organic material, in addition to nutrients not being recycled. The interest in horse manure undergoing anaerobic digestion and thereby producing biogas has increased with an increasing interest in biogas as a renewable fuel. This study aims to highlight the environmental impact of different treatment options for horse manure from a system perspective. The treatment methods investigated are: (1) unmanaged composting; (2) managed composting; (3) large-scale incineration in a waste-fired combined heat and power (CHP) plant; (4) drying and small-scale combustion; and (5) liquid anaerobic digestion with thermal pre-treatment. Following significant data uncertainty in the survey, the results are only indicative. No clear conclusions can be drawn regarding any preference in treatment methods, with the exception of their climate impact, for which anaerobic digestion is preferred. The overall conclusion is that more research is needed to ensure the quality of future surveys, thus an overall research effort from horse management to waste management.

【 授权许可】

Unknown