气候变化领域集成服务门户(CCPortal): Effect of manure co-digestion on methane production, carbon retention, and fertilizer value of digestate

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DOI	10.1016/j.scitotenv.2024.172083
	Effect of manure co-digestion on methane production, carbon retention, and fertilizer value of digestate
	Tampio, Elina; Laaksonen, Ilmari; Rimhanen, Karoliina; Honkala, Niina; Laakso, Johanna; Soinne, Helena; Rasa, Kimmo
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	927
卷号	927
英文摘要	Anaerobic digestion can provide benefits not only from the perspective of renewable energy production but also in the form of fertilization effect and increased retention of C in soils after digestate application. This study consisted of two phases, where the first phase assessed the suitability of carbon-rich co-feedstocks for methane production via laboratory testing. The second phase assessed the balance and stability of C before and after anaerobic digestion by systematic digestate characterization, and by evaluating its carbon retention potential using a modeling approach. The results indicated that pyrolysis chars had a negligible effect on the methane production potential of cattle manure, while wheat straw expectedly increased methane production. Thus, a mixture of cattle manure and wheat straw was digested in pilot-scale leach-bed reactors and compared with undigested manure and straw. Although the total amount of C in the digestate was lower than in the untreated feedstocks, the digestion process stabilized C and was modeled to be more effective in retaining C in the soil than untreated cattle manure and wheat straw. In addition, digestion converted 23-27 % of the C into valuable methane, increasing the valorization of the total C in the feedstock. Considering anaerobic digestion processes as a strategy to optimize both carbon and nutrient valorization provides a more holistic approach to addressing climate change and improving soil health.
英文关键词	Anaerobic digestion; Biogas; Nutrients; Soil carbon; Straw
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001226080100001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296749
作者单位	Natural Resources Institute Finland (Luke); Natural Resources Institute Finland (Luke); Natural Resources Institute Finland (Luke)
推荐引用方式 GB/T 7714	Tampio, Elina,Laaksonen, Ilmari,Rimhanen, Karoliina,et al. Effect of manure co-digestion on methane production, carbon retention, and fertilizer value of digestate[J],2024,927.
APA	Tampio, Elina.,Laaksonen, Ilmari.,Rimhanen, Karoliina.,Honkala, Niina.,Laakso, Johanna.,...&Rasa, Kimmo.(2024).Effect of manure co-digestion on methane production, carbon retention, and fertilizer value of digestate.SCIENCE OF THE TOTAL ENVIRONMENT,927.
MLA	Tampio, Elina,et al."Effect of manure co-digestion on methane production, carbon retention, and fertilizer value of digestate".SCIENCE OF THE TOTAL ENVIRONMENT 927(2024).