Tenax extraction for exploring rate-limiting factors in methyl-beta-cyclodextrin enhanced anaerobic biodegradation of PAHs under denitrifying conditions in a red paddy soil
文献类型：期刊论文
| 作者 | Sun, Mingming1,2; Ye, Mao3; Hu, Feng1; Li, Huixin1; Teng, Ying2; Luo, Yongming4 ; Jiang, Xin3; Kengara, Fredrick Orori5
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| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
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| 出版日期 | 2014-01-15 |
| 卷号 | 264页码:505-513 |
| 关键词 | Polycyclic aromatic hydrocarbons Anaerobic biodegradation Nitrate Methyl-beta-cyclodextrin Tenax TA Rate-limiting factors |
| 英文摘要 | The effectiveness of anaerobic bioremediation systems for PAH-contaminated soil may be constrained by low contaminants bioaccessibility due to limited aqueous solubility and lack of suitable electron acceptors. Information on what is the rate-limiting factor in bioremediation process is of vital importance in the decision in what measures can be taken to assist the biodegradation efficacy. In the present study, four different microcosms were set to study the effect of methyl-beta-cyclodextrin (MCD) and nitrate addition (N) on PAHs biodegradation under anaerobic conditions in a red paddy soil. Meanwhile, sequential Tenax extraction combined with a first-three-compartment model was employed to evaluate the rate-limiting factors in MCD enhanced anaerobic biodegradation of PAHs. Microcosms with both 1% (w/w) MCD and 20 mM N addition produced maximum biodegradation of total PAHs of up to 61.7%. It appears rate-limiting factors vary with microcosms: low activity of degrading microorganisms is the vital rate-limiting factor for control and MCD addition treatments (CK and M treatments); and lack of bioaccessible PAHs is the main rate-limiting factor for nitrate addition treatments (N and MN treatments). These results have practical implications for site risk assessment and cleanup strategies. (C) 2013 Elsevier B.V. All rights reserved. |
| 研究领域[WOS] | Engineering ; Environmental Sciences & Ecology |
| 关键词[WOS] | POLYCYCLIC AROMATIC-HYDROCARBONS ; CONTAMINATED SOIL ; PHENANTHRENE BIODEGRADATION ; ORGANIC-COMPOUNDS ; DEGRADATION ; BIOAVAILABILITY ; AVAILABILITY ; DESORPTION ; CREOSOTE ; FATE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000331021200059 |
| 公开日期 | 2016-04-26 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/9074]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Soil Ecol Lab, Nanjing 210095, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China 4.Chinese Acad Sci, Yantai Inst Costal Zone Res, Yantai 264003, Peoples R China 5.Maseno Univ, Dept Chem, Maseno 40105, Kenya |
| 推荐引用方式 GB/T 7714 | Sun, Mingming,Ye, Mao,Hu, Feng,et al. Tenax extraction for exploring rate-limiting factors in methyl-beta-cyclodextrin enhanced anaerobic biodegradation of PAHs under denitrifying conditions in a red paddy soil[J]. JOURNAL OF HAZARDOUS MATERIALS,2014,264:505-513. |
| APA | Sun, Mingming.,Ye, Mao.,Hu, Feng.,Li, Huixin.,Teng, Ying.,...&Kengara, Fredrick Orori.(2014).Tenax extraction for exploring rate-limiting factors in methyl-beta-cyclodextrin enhanced anaerobic biodegradation of PAHs under denitrifying conditions in a red paddy soil.JOURNAL OF HAZARDOUS MATERIALS,264,505-513. |
| MLA | Sun, Mingming,et al."Tenax extraction for exploring rate-limiting factors in methyl-beta-cyclodextrin enhanced anaerobic biodegradation of PAHs under denitrifying conditions in a red paddy soil".JOURNAL OF HAZARDOUS MATERIALS 264(2014):505-513. |
入库方式： OAI收割
来源：烟台海岸带研究所
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