Degradation of cellulose under disposal conditions: State-of-the-art report

Research output: Report/bookER - External report

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Degradation of cellulose under disposal conditions : State-of-the-art report. / Bleyen, Nele.

Belgian Nuclear Research Center, 2020. 50 p. (SCK•CEN Reports; No. ER-0791).

Research output: Report/bookER - External report

Harvard

Bleyen, N 2020, Degradation of cellulose under disposal conditions: State-of-the-art report. SCK•CEN Reports, no. ER-0791, Belgian Nuclear Research Center.

APA

Bleyen, N. (2020). Degradation of cellulose under disposal conditions: State-of-the-art report. (SCK•CEN Reports; No. ER-0791). Belgian Nuclear Research Center.

Vancouver

Bleyen N. Degradation of cellulose under disposal conditions: State-of-the-art report. Belgian Nuclear Research Center, 2020. 50 p. (SCK•CEN Reports; ER-0791).

Author

Bleyen, Nele. / Degradation of cellulose under disposal conditions : State-of-the-art report. Belgian Nuclear Research Center, 2020. 50 p. (SCK•CEN Reports; ER-0791).

Bibtex - Download

@book{a847b2c7f49244f0a31b90555e546988,
title = "Degradation of cellulose under disposal conditions: State-of-the-art report",
abstract = "Cellulosic materials are present in significant amounts in Belgian nuclear waste, which is currently envisaged to be disposed of in a surface (low- or intermediate-level short-lived waste) or deep geological repository (intermediate-level long-lived waste) by ONDRAF/NIRAS, the Belgian radioactive waste management organisation. The massive employment of cementitious structural and backfill materials will result in the generation and long-term persistence of a high pH (pH > 12.5) environment within the disposal system. Cellulose is susceptible to both alkaline and radiolytic degradation, which result in the formation of cellulose degradation products. Under highly alkaline conditions, some of these cellulose degradation products (e.g. α-isosaccharinic acid) are able to complex strongly with multivalent radionuclides, thereby possibly enhancing the transport of these radioactive species to the biosphere. This report reviews the current understanding regarding alkaline and radiolytic cellulose degradation processes and the associated kinetics and degradation products. Also the stability of certain degradation products under radioactive waste disposal conditions is addressed briefly.",
keywords = "Cellulose, Radioactive waste, Alkaline degradation, Radiolytic degradation",
author = "Nele Bleyen",
note = "Score=1",
year = "2020",
month = "10",
day = "7",
language = "English",
series = "SCK•CEN Reports",
publisher = "Belgian Nuclear Research Center",
number = "ER-0791",
address = "Belgium",

}

RIS - Download

TY - BOOK

T1 - Degradation of cellulose under disposal conditions

T2 - State-of-the-art report

AU - Bleyen, Nele

N1 - Score=1

PY - 2020/10/7

Y1 - 2020/10/7

N2 - Cellulosic materials are present in significant amounts in Belgian nuclear waste, which is currently envisaged to be disposed of in a surface (low- or intermediate-level short-lived waste) or deep geological repository (intermediate-level long-lived waste) by ONDRAF/NIRAS, the Belgian radioactive waste management organisation. The massive employment of cementitious structural and backfill materials will result in the generation and long-term persistence of a high pH (pH > 12.5) environment within the disposal system. Cellulose is susceptible to both alkaline and radiolytic degradation, which result in the formation of cellulose degradation products. Under highly alkaline conditions, some of these cellulose degradation products (e.g. α-isosaccharinic acid) are able to complex strongly with multivalent radionuclides, thereby possibly enhancing the transport of these radioactive species to the biosphere. This report reviews the current understanding regarding alkaline and radiolytic cellulose degradation processes and the associated kinetics and degradation products. Also the stability of certain degradation products under radioactive waste disposal conditions is addressed briefly.

AB - Cellulosic materials are present in significant amounts in Belgian nuclear waste, which is currently envisaged to be disposed of in a surface (low- or intermediate-level short-lived waste) or deep geological repository (intermediate-level long-lived waste) by ONDRAF/NIRAS, the Belgian radioactive waste management organisation. The massive employment of cementitious structural and backfill materials will result in the generation and long-term persistence of a high pH (pH > 12.5) environment within the disposal system. Cellulose is susceptible to both alkaline and radiolytic degradation, which result in the formation of cellulose degradation products. Under highly alkaline conditions, some of these cellulose degradation products (e.g. α-isosaccharinic acid) are able to complex strongly with multivalent radionuclides, thereby possibly enhancing the transport of these radioactive species to the biosphere. This report reviews the current understanding regarding alkaline and radiolytic cellulose degradation processes and the associated kinetics and degradation products. Also the stability of certain degradation products under radioactive waste disposal conditions is addressed briefly.

KW - Cellulose

KW - Radioactive waste

KW - Alkaline degradation

KW - Radiolytic degradation

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/40541448

M3 - ER - External report

T3 - SCK•CEN Reports

BT - Degradation of cellulose under disposal conditions

PB - Belgian Nuclear Research Center

ER -

ID: 6931292