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Near-field/far-field interface of a near-surface low level radioactive waste site

Beadle, Ian R., Boult, S., Graham, J., Hand, V. L., Humphreys, Paul, Trivedi, D. P. and Warwick, P. (2004) Near-field/far-field interface of a near-surface low level radioactive waste site. Materials Research Society Proceedings (835). ISSN 0272-9172

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    Abstract

    Experimental and Modelling studies have been used to investigate the biogeochemical processes occurring at the interface zone between the near-field and far-field of the Drigg Low- Level radioactive Waste (LLW) trenches. These have led to a conceptual model of interface biogeochemistry, which has subsequently been modelled by the BNFL code known as the Generalised Repository Model (GRM). GRM simulations suggest that as organic rich leachate migrates into the far-field, iron III minerals such as iron hydroxide will dissolve, and reduced iron minerals such as siderite will precipitate due to microbial processes. Batch and column experimental studies have verified this conceptual understanding. Some unexpected processes, such as the presence of nitrate enhancing sulphate reduction, were also observed.

    Item Type: Article
    Subjects: Q Science > Q Science (General)
    Q Science > QD Chemistry
    Schools: School of Applied Sciences
    Related URLs:
    Depositing User: Sara Taylor
    Date Deposited: 07 May 2009 16:33
    Last Modified: 08 Dec 2010 11:21
    URI: http://eprints.hud.ac.uk/id/eprint/4240

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