Concurrent aerobic methane oxidation and biodegradation of waste in shallow layer of landfill during aeration
文献类型：期刊论文
| 作者 | Ma, Jun7; Chen, Zhuo7; Li, Jiangshan4,5,6; Liu, Lei4,5,6; Yang, Qirui3; Wan, Yong4,5,6; Lu, Xuhong2; Zhang, Yi1; Fei, Xunchang2 |
| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
 |
| 出版日期 | 2025-05-01 |
| 卷号 | 381页码:11 |
| 关键词 | Municipal solid waste Aeration Methane oxidation Aerobic biodegradation Simplified model |
| ISSN号 | 0301-4797 |
| DOI | 10.1016/j.jenvman.2025.125282 |
| 英文摘要 | Aeration is a common remediation technique to mitigate greenhouse gas emissions and accelerate waste biodegradation in landfills. However, designing of landfill aeration remains challenging. Enhancing the understanding of concurrent methane (CH4) oxidation and aerobic biodegradation of waste during landfill aeration is crucial. This study combined laboratory experiments with simplified modeling to elucidate these two processes occurring in waste after different biodegradation periods. As biodegradation period of waste increased, the CH4 consumption rates decreased, suggesting a gradual change in microbial community. The oxygen (O2) consumption rates initially increased and then decreased in three reactors with the different concentrations of CH4 at the beginning of the reaction (initial CH4 concentration) of 20 %, 17 %, and 10 %. The peak O2 consumption rates were-0.048,-0.063, and-0.072 mol day-1 kg-1 dry mass, respectively. A simplified model was developed based on the chemical reaction equations, balance equations, and elemental analysis of degradable waste to quantify the molar fractions of O2 consumption attributed to CH4 oxidation and aerobic waste biodegradation. The molar fraction of O2 consumption by CH4 oxidation ranged from 1 % to 88 %. The CH4 removal efficiency ranged from 4 % to 16 %, which was influenced by the competing aerobic waste biodegradation and was lower than values reported in studies using compost materials, such as garden waste or natural soil as substrates. Nevertheless, CH4 oxidation in shallow layers of landfill contributes to overall CH4 oxidation globally. This study provides a valuable dataset and theoretical support for optimizing aeration design and mitigating CH4 emissions from landfills. |
| 资助项目 | National Natural Science Foundation of China[42407219] ; China Postdoctoral Science Foundation[2022M720633] ; Basic Research Projects of Liaoning Provincial Education Department[LJ212410151024] ; Key Research and Development Project of Hubei Province[2023BCB074] ; Youth Innova-tion Promotion Association CAS[2021327] ; National Natural Science Fund for Excellent Young Scientists[52322810] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001467421800001 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35634]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Lei; Fei, Xunchang |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Nanyang Technol Univ, Sch Civil & Environm Engn, Nanyang Ave, Singapore 639798, Singapore 3.Dalian Maritime Univ, Houston Int Inst, Dalian 116026, Peoples R China 4.Hubei Prov Key Lab Contaminated Sludge & Soil Sci, Wuhan 430071, Peoples R China 5.IRSM CAS, HK PolyU Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China 6.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 7.Dalian Maritime Univ, Coll Transportat Engn, Dalian 116026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Jun,Chen, Zhuo,Li, Jiangshan,et al. Concurrent aerobic methane oxidation and biodegradation of waste in shallow layer of landfill during aeration[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2025,381:11. |
| APA | Ma, Jun.,Chen, Zhuo.,Li, Jiangshan.,Liu, Lei.,Yang, Qirui.,...&Fei, Xunchang.(2025).Concurrent aerobic methane oxidation and biodegradation of waste in shallow layer of landfill during aeration.JOURNAL OF ENVIRONMENTAL MANAGEMENT,381,11. |
| MLA | Ma, Jun,et al."Concurrent aerobic methane oxidation and biodegradation of waste in shallow layer of landfill during aeration".JOURNAL OF ENVIRONMENTAL MANAGEMENT 381(2025):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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