Reliability Based Approach for the Prediction of Leachate Head in MSW Landfills

被引：1

作者：

Santhosh L.G. ^{[1
]}

Lakshmikanthan P. ^{[1
]}

Babu G.L.S. ^{[1
,2
]}

机构：

[1] Centre for Sustainable Technologies, Indian Institute of Science, Bangalore, 560012, Karnataka

[2] Department of Civil Engineering, Centre for Sustainable Technologies, Indian Institute of Science, Bangalore, 560012, Karnataka

来源：

International Journal of Geosynthetics and Ground Engineering | 2017年 / 3卷 / 1期

关键词：

Defects; Final cover; HELP model; Leachate head; Model uncertainty; Reliability; RSM;

D O I：

10.1007/s40891-016-0080-4

中图分类号：

学科分类号：

摘要：

The paper presents the reliability-based approach to assess the performance of landfill considering uncertainties associated with the hydraulic properties of various components of the system. A model domain having final cover system and municipal solid waste (MSW) layer is considered as an integrated system for the analysis. Water balance is computed using the Hydrologic Evaluation of Landfill Performance (HELP) model to construct response surfaces for the reliability analysis. The probability of accumulation of leachate head (ha c) at the bottom of the MSW layer above an allowable head (ha l) is considered as the criterion for reliability estimates in this study. The results of the analysis are discussed in terms of the reliability index, β. The impact of variations in (a) hydraulic characteristics of the various layers (b) defects and placement conditions of geomembrane (GM) on the system performance have been studied. The results reveal that the hydraulic conductivity of compacted clay layer (CCL) of the cover component along with the porosity and saturated hydraulic conductivity of MSW layer are the significant parameters, which influence the reliability. Further, impact of model uncertainty and parametric analysis of significant variables are conducted and the results are discussed. © 2017, Springer International Publishing Switzerland.

引用

共 40 条

[1]

Farquhar G.J., Leachate: production and characterization, Can J Civ Eng, 16, 3, pp. 317-325, (1989)

[2]

Koerner R.M., Soong T.Y., Leachate in landfills: the stability issues, Geotext Geomembr, 18, 5, pp. 293-309, (2000)

[3]

USEPA, Solid waste disposal facility criteria, subpart D-design criteria, (1993)

[4]

Koerner R.M., Koerner J.R., Results of a worldwide regulatory survey on allowable hydraulic head within landfill sumps. GRI white paper no. 13, pp. 1-12, (2008)

[5]

Bogardi I., Kelly W.E., Bardossy A., Reliability model for soil liners: initial design, J Geotech Eng, 115, 5, pp. 658-669, (1989)

[6]

Hosser D., Dehne M., Ahrens H., Kindlein J., Modelling simplification of landfill processes by using methods of reliability theory, Waste Manage Res, 21, 2, pp. 119-126, (2003)

[7]

Pivato A., Landfill liner failure: an open question for landfill risk analysis, J Environ Protect, 2, 3, pp. 287-297, (2011)

[8]

Schroeder P.R., Dozier T.S., Zappi P.A., McEnroe B.M., Sjostrom J.W., Peton R.L., The hydrologic evaluation of landfill performance (HELP) model: engineering documentation for version 3.EPA/600/R-94/168b, pp. 1-110, (1994)

[9]

Sao Mateus M.D.S.C., Machado S.L., Barbosa M.C., An attempt to perform water balance in a Brazilian municipal solid waste landfill, Waste Manage, 32, 3, pp. 471-481, (2012)

[10]

Sivapullaiah P.V., Lakshmi kantha H., Madhu Kiran K., Geotechnical properties of stabilized Indian red earth, J Geotech Geol Eng, 21, 4, pp. 399-413, (2003)

← 1 2 3 4 →