Prediction of oxygen distribution in the waste mass from an aeration well in bioreactor landfills

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	Prediction of oxygen distribution in the waste mass from an aeration well in bioreactor landfills
	Zhu, Lei ; Jin, Jiaxu ; Liu, Lei ; Gao, Tengfei ; Li, Ruoxin ; Du, Yuelin
	2023-05-19
发表期刊	WASTE MANAGEMENT & RESEARCH
ISSN	0734-242X
摘要	The key to upgrade the efficiency of aerobic remediation of landfills is to determine the distribution characteristics of oxygen concentration during aerobic ventilation. This study discusses the distribution law of oxygen concentration with time and radial distance based on a single-well aeration test at an old landfill site. The transient analytical solution of the radial oxygen concentration distribution was deduced using the gas continuity equation and approximation of calculus and logarithmic functions. Oxygen concentration data from the field monitoring were compared with the results predicted by the analytical solution. The results indicated that the oxygen concentration initially increased and then decreased with prolonged aeration time. With an increase in radial distance, the oxygen concentration rapidly declined, followed by a gradual decrease. The influence radius of the aeration well increased slightly when the aeration pressure increased from 2 to 20 kPa. The field test data agreed with the analytical solution prediction results, preliminarily verifying the reliability of the oxygen concentration prediction model. Results from this study provide a basis of guidelines for the design, operation and maintenance management of a landfill aerobic restoration project.
关键词	Landfills single-well aeration oxygen concentration influence radius prediction model
学科领域	Engineering ; Environmental Sciences & Ecology
语种	英语
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:001001047800001
出版者	SAGE PUBLICATIONS LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.198/handle/2S6PX9GI/35455
专题	中科院武汉岩土力学所
作者单位	1.Liaoning Technical University; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 3.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; 4.Liaoning Technical University
推荐引用方式 GB/T 7714	Zhu, Lei,Jin, Jiaxu,Liu, Lei,et al. Prediction of oxygen distribution in the waste mass from an aeration well in bioreactor landfills[J]. WASTE MANAGEMENT & RESEARCH,2023.
APA	Zhu, Lei,Jin, Jiaxu,Liu, Lei,Gao, Tengfei,Li, Ruoxin,&Du, Yuelin.(2023).Prediction of oxygen distribution in the waste mass from an aeration well in bioreactor landfills.WASTE MANAGEMENT & RESEARCH.
MLA	Zhu, Lei,et al."Prediction of oxygen distribution in the waste mass from an aeration well in bioreactor landfills".WASTE MANAGEMENT & RESEARCH (2023).