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DOI:	10.1371/journal.pone.0107433
论文题名:	Biodegradation of the Alkaline Cellulose Degradation Products Generated during Radioactive Waste Disposal
作者:	Simon P. Rout; Jessica Radford; Andrew P. Laws; Francis Sweeney; Ahmed Elmekawy; Lisa J. Gillie; Paul N. Humphreys
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-9-30
卷:	9, 期:9
语种:	英语
英文关键词:	Sulfates ; Cellulose ; Polymerase chain reaction ; Sediment ; Clostridium ; Acetic acid ; Fermentation ; Iron oxides
英文摘要:	The anoxic, alkaline hydrolysis of cellulosic materials generates a range of cellulose degradation products (CDP) including α and β forms of isosaccharinic acid (ISA) and is expected to occur in radioactive waste disposal sites receiving intermediate level radioactive wastes. The generation of ISA's is of particular relevance to the disposal of these wastes since they are able to form complexes with radioelements such as Pu enhancing their migration. This study demonstrates that microbial communities present in near-surface anoxic sediments are able to degrade CDP including both forms of ISA via iron reduction, sulphate reduction and methanogenesis, without any prior exposure to these substrates. No significant difference (n = 6, p = 0.118) in α and β ISA degradation rates were seen under either iron reducing, sulphate reducing or methanogenic conditions, giving an overall mean degradation rate of 4.7×10−2 hr−1 (SE±2.9×10−3). These results suggest that a radioactive waste disposal site is likely to be colonised by organisms able to degrade CDP and associated ISA's during the construction and operational phase of the facility.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0107433&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/19462
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0107433.PDF（1108KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Department of Chemical and Biological Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom;Department of Chemical and Biological Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom;Department of Chemical and Biological Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom;Department of Chemical and Biological Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom;Department of Chemical and Biological Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom;Department of Chemical and Biological Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom;Department of Chemical and Biological Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom

Recommended Citation:

Simon P. Rout,Jessica Radford,Andrew P. Laws,et al. Biodegradation of the Alkaline Cellulose Degradation Products Generated during Radioactive Waste Disposal[J]. PLOS ONE,2014-01-01,9(9)

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