Near-field/Far-field Interface of a Near-Surface Low-Level Radioactive Waste Site

I. R. Beadle; J. Graham; S. Boult; V. L. Hand; Peter Warwick; M. G. Randall; D. P. Trivedi; P. N. Humphreys

doi:10.1557/PROC-807-835

Near-field/Far-field Interface of a Near-Surface Low-Level Radioactive Waste Site

I. R. Beadle, J. Graham, S. Boult, V. L. Hand, Peter Warwick, M. G. Randall, D. P. Trivedi, P. N. Humphreys

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

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.

Original language	English
Pages (from-to)	835-840
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	807
DOIs	https://doi.org/10.1557/PROC-807-835
Publication status	Published - 2004
Externally published	Yes
Event	Scientific Basis for Nuclear Waste Management XXVII - Kalmar, Sweden Duration: 15 Jun 2003 → 19 Jun 2003 Conference number: 27

Access to Document

10.1557/PROC-807-835Licence: Unspecified

Cite this

@article{1f8f4880044f4adbbc332fde001c9529,

title = "Near-field/Far-field Interface of a Near-Surface Low-Level Radioactive Waste Site",

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.",

author = "Beadle, {I. R.} and J. Graham and S. Boult and Hand, {V. L.} and Peter Warwick and Randall, {M. G.} and Trivedi, {D. P.} and Humphreys, {P. N.}",

year = "2004",

doi = "10.1557/PROC-807-835",

language = "English",

volume = "807",

pages = "835--840",

journal = "MRS Online Proceedings Library",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Scientific Basis for Nuclear Waste Management XXVII ; Conference date: 15-06-2003 Through 19-06-2003",

}

TY - JOUR

T1 - Near-field/Far-field Interface of a Near-Surface Low-Level Radioactive Waste Site

AU - Beadle, I. R.

AU - Graham, J.

AU - Boult, S.

AU - Hand, V. L.

AU - Warwick, Peter

AU - Randall, M. G.

AU - Trivedi, D. P.

AU - Humphreys, P. N.

N1 - Conference code: 27

PY - 2004

Y1 - 2004

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=12844276569&partnerID=8YFLogxK

UR - https://www.cambridge.org/core/journals/mrs-online-proceedings-library-archive

U2 - 10.1557/PROC-807-835

DO - 10.1557/PROC-807-835

M3 - Article

AN - SCOPUS:12844276569

VL - 807

SP - 835

EP - 840

JO - MRS Online Proceedings Library

JF - MRS Online Proceedings Library

SN - 0272-9172

T2 - Scientific Basis for Nuclear Waste Management XXVII

Y2 - 15 June 2003 through 19 June 2003

ER -

Near-field/Far-field Interface of a Near-Surface Low-Level Radioactive Waste Site

Abstract

Access to Document

Other files and links

Fingerprint

Cite this