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DOI | 10.1016/j.chemosphere.2015.08.040 |
Effect of dispersants on the biodegradation of South Louisiana crude oil at 5 and 25 degrees C | |
Zhuang, Mobing1; Abulikemu, Gulizhaer2; Campo, Pablo1; Platten, William E., III2; Suidan, Makram T.3; Venosa, Albert D.4; Conmy, Robyn N.4 | |
发表日期 | 2016-02-01 |
ISSN | 0045-6535 |
卷号 | 144页码:767-774 |
英文摘要 | This article reports biodegradation rates for a commercial dispersant, JD-2000, South Louisiana crude oil (SLC) alone, and SLC dispersed with JD-2000 at 5 and 25 degrees C. Results from the biodegradation experiments revealed that Component X, a chemical marker for JD-2000, rapidly degraded at both temperatures. The application of JD-2000 decreased by half the overall biodegradation rate of aliphatic compounds at 25 degrees C. At 5 degrees C, a residual fraction consisting of iso- and n-alkanes (C-29-C-35) persisted after 56 d. The combination of dispersant and higher temperature resulted in faster removal rates for 2- and 3-ring polycyclic aromatic hydrocarbons. When compared with Corexit 9500, our results suggest that the chemistry of the surfactant (or surfactants) in JD-2000 might have favored oil dissolution (substrate transport to the aqueous phase) as an uptake mechanism over adhesion, which requires direct contact of the biomass with the oil. (C) 2015 Elsevier Ltd. All rights reserved. |
英文关键词 | Dispersants;JD-2000;Corexit 9500;Biodegradation;Crude oil;Surfactant |
语种 | 英语 |
WOS记录号 | WOS:000367774400098 |
来源期刊 | CHEMOSPHERE
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来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/59822 |
作者单位 | 1.Univ Cincinnati, Dept Biomed Chem & Environm Engn, Cincinnati, OH 45221 USA; 2.Pegasus Tech Serv Inc, Cincinnati, OH 45219 USA; 3.Amer Univ Beirut, Fac Engn & Architecture, Beirut 11072020, Lebanon; 4.US EPA, NRMRL, Cincinnati, OH 45268 USA |
推荐引用方式 GB/T 7714 | Zhuang, Mobing,Abulikemu, Gulizhaer,Campo, Pablo,et al. Effect of dispersants on the biodegradation of South Louisiana crude oil at 5 and 25 degrees C[J]. 美国环保署,2016,144:767-774. |
APA | Zhuang, Mobing.,Abulikemu, Gulizhaer.,Campo, Pablo.,Platten, William E., III.,Suidan, Makram T..,...&Conmy, Robyn N..(2016).Effect of dispersants on the biodegradation of South Louisiana crude oil at 5 and 25 degrees C.CHEMOSPHERE,144,767-774. |
MLA | Zhuang, Mobing,et al."Effect of dispersants on the biodegradation of South Louisiana crude oil at 5 and 25 degrees C".CHEMOSPHERE 144(2016):767-774. |
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