干旱区生态环境知识资源中心(Arid): Feasibility of annual dry anaerobic digestion temperature-controlled by solar energy in cold and arid areas

Arid

DOI	10.1016/j.jenvman.2022.115626
	Feasibility of annual dry anaerobic digestion temperature-controlled by solar energy in cold and arid areas
	Li, Jinping; Jin, Shirong; Wan, Dandan; Li, Hui; Gong, Shuyuan; Novakovic, Vojislav
通讯作者	Li, JP
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	2022
卷号	318
英文摘要	In cold and arid areas, variations of ambient temperature not only lead to a large amount of heat loss from anaerobic digestion reactors but also greater challenges in the stable production of biogas. Common temperature controlled methods of biogas production, such as coal combustion, electric heating, biogas combustion and so on, are expensive and high energy-consuming. Openly, solar energy is economical and suitable for stable biogas production. However, no pilot studies have yet shown the feasibility of controlling the temperature of annual biogas production with solar energy in cold and arid areas. This paper first theoretically analyzed the energy balance between evacuated tube solar collectors and anaerobic reactors. Then a biogas production system was developed in Lanzhou City, China, consisting mainly of a 3 m3 insulated anaerobic reactor and a solar collector with 30 sticks phi 58 x L1800mm evacuated tubes. Annual batch experiments have been carried out to test the feasibility of stable biogas production at a temperature-controlled by solar energy in cold and arid areas. The results show that dry anaerobic digestion with 20% total solid (TS) can start and operate smoothly even under the condition of low solar irradiation for 3-4 consecutive days. The system can run stability by anaerobic digestion at 26 +/- 1 C in winter and spring, by mesophilic (37 +/- 1 C) and thermophilic (52 +/- 1 C) anaerobic digestion in summer and autumn, which implies a highly efficient operation strategy for agricultural and animal husbandry wastes treatment. These theoretical and experimental results provide a scientific basis and engineering reference for the application of biogas production temperature-controlled by solar energy and have important value for the efficient and low-cost anaerobic digestion treatment of agricultural and animal husbandry wastes in cold and arid areas.
英文关键词	Annual pilot biogas production temperature- Dry anaerobic digestion Start characteristic Feasibility experiment Operation strategy
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000826336000010
WOS关键词	SYSTEM
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393416
推荐引用方式 GB/T 7714	Li, Jinping,Jin, Shirong,Wan, Dandan,et al. Feasibility of annual dry anaerobic digestion temperature-controlled by solar energy in cold and arid areas[J],2022,318.
APA	Li, Jinping,Jin, Shirong,Wan, Dandan,Li, Hui,Gong, Shuyuan,&Novakovic, Vojislav.(2022).Feasibility of annual dry anaerobic digestion temperature-controlled by solar energy in cold and arid areas.JOURNAL OF ENVIRONMENTAL MANAGEMENT,318.
MLA	Li, Jinping,et al."Feasibility of annual dry anaerobic digestion temperature-controlled by solar energy in cold and arid areas".JOURNAL OF ENVIRONMENTAL MANAGEMENT 318(2022).