Variations of waste unit weight during mechanical and degradation processes at landfills

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Variations of waste unit weight during mechanical and degradation processes at landfills. / Yu, Li; Batlle, Francisco; Carrera, Jesus.

In: Waste Management & Research, Vol. 29, No. 12, 12.2011, p. 1303-1315.

Research output: Contribution to journalArticle

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Yu, L, Batlle, F & Carrera, J 2011, 'Variations of waste unit weight during mechanical and degradation processes at landfills', Waste Management & Research, vol. 29, no. 12, pp. 1303-1315. https://doi.org/10.1177/0734242X10394912

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Yu, Li ; Batlle, Francisco ; Carrera, Jesus. / Variations of waste unit weight during mechanical and degradation processes at landfills. In: Waste Management & Research. 2011 ; Vol. 29, No. 12. pp. 1303-1315.

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@article{e90eb0a4af3c455cb266a72da31e20ae,
title = "Variations of waste unit weight during mechanical and degradation processes at landfills",
abstract = "This manuscript develops a model for assessing the time and space variations in unit weight of traditional municipal solid waste (MSW) landfills. The model considers the variations of unit weight caused by deformation of the waste matrix and degradation of the organic portion. Deformation of the waste matrix includes both short-term effects, resulting from mechanical strain during the filling period, and long-term effects, resulting from superposition of waste skeleton creep and waste degradation. Mass loss, caused by waste degradation, not only affects the stress level within the waste column, but also induces large and long-term deformation. Degradation-induced deformation is caused by the local collapse of the solid matrix weakened by mass loss. Unit weight profiles obtained at four MSW landfills using the proposed model agree well with measurements from in situ large-scale unit weight tests. Evolution of unit weight profiles indicates that there is no monotonous varying trend for unit weight along the whole depth of the landfill. Whether unit weight increases or decreases depends on the competition between matrix deformation and degradation processes.",
keywords = "Municipal solid waste landfill, unit weight, compressive strain, degradation, viscoelastic model, analytical formulation",
author = "Li Yu and Francisco Batlle and Jesus Carrera",
note = "Score = 10",
year = "2011",
month = "12",
doi = "10.1177/0734242X10394912",
language = "English",
volume = "29",
pages = "1303--1315",
journal = "Waste Management & Research",
issn = "0734-242X",
publisher = "Wiley - John Wiley & Sons, Ltd",
number = "12",

}

RIS - Download

TY - JOUR

T1 - Variations of waste unit weight during mechanical and degradation processes at landfills

AU - Yu, Li

AU - Batlle, Francisco

AU - Carrera, Jesus

N1 - Score = 10

PY - 2011/12

Y1 - 2011/12

N2 - This manuscript develops a model for assessing the time and space variations in unit weight of traditional municipal solid waste (MSW) landfills. The model considers the variations of unit weight caused by deformation of the waste matrix and degradation of the organic portion. Deformation of the waste matrix includes both short-term effects, resulting from mechanical strain during the filling period, and long-term effects, resulting from superposition of waste skeleton creep and waste degradation. Mass loss, caused by waste degradation, not only affects the stress level within the waste column, but also induces large and long-term deformation. Degradation-induced deformation is caused by the local collapse of the solid matrix weakened by mass loss. Unit weight profiles obtained at four MSW landfills using the proposed model agree well with measurements from in situ large-scale unit weight tests. Evolution of unit weight profiles indicates that there is no monotonous varying trend for unit weight along the whole depth of the landfill. Whether unit weight increases or decreases depends on the competition between matrix deformation and degradation processes.

AB - This manuscript develops a model for assessing the time and space variations in unit weight of traditional municipal solid waste (MSW) landfills. The model considers the variations of unit weight caused by deformation of the waste matrix and degradation of the organic portion. Deformation of the waste matrix includes both short-term effects, resulting from mechanical strain during the filling period, and long-term effects, resulting from superposition of waste skeleton creep and waste degradation. Mass loss, caused by waste degradation, not only affects the stress level within the waste column, but also induces large and long-term deformation. Degradation-induced deformation is caused by the local collapse of the solid matrix weakened by mass loss. Unit weight profiles obtained at four MSW landfills using the proposed model agree well with measurements from in situ large-scale unit weight tests. Evolution of unit weight profiles indicates that there is no monotonous varying trend for unit weight along the whole depth of the landfill. Whether unit weight increases or decreases depends on the competition between matrix deformation and degradation processes.

KW - Municipal solid waste landfill

KW - unit weight

KW - compressive strain

KW - degradation

KW - viscoelastic model

KW - analytical formulation

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_117986

UR - http://knowledgecentre.sckcen.be/so2/bibref/8706

U2 - 10.1177/0734242X10394912

DO - 10.1177/0734242X10394912

M3 - Article

VL - 29

SP - 1303

EP - 1315

JO - Waste Management & Research

JF - Waste Management & Research

SN - 0734-242X

IS - 12

ER -

ID: 243732