Finite element modelling of leaching from a municipal landfill

被引：5

作者：

Mirbagheri, S.A. ^{[1
]}

Esfeh, H.R. Kazemi ^{[2
]}

机构：

[1] Department of Civil Engineering, Khajeh Nasir University of Technology, Tehran

[2] Department of Civil Engineering, Shiraz University, Shiraz

来源：

Journal of Applied Sciences | 2008年 / 8卷 / 04期

关键词：

Built environment; Finite element method; Landfill; Leach;

D O I：

10.3923/jas.2008.629.635

中图分类号：

学科分类号：

摘要：

The production of leachate from municipal sanitary landfills is an important environmental problem associated with solid waste management. In this study, a one dimensional mathematical model based on convection-dispersion equation in unsaturated porous media is presented to compute inorganic total solids concentration along the landfill. The numerical model is base on finite element method. A fortran77 computer program has been prepared for the model. The Source term in convection-dispersion equation is based on Straub and Lynch leaching generation term for inorganic total solids. Because of nonlinearity, a Picard method has been used. Moisture transport equation has been solved by LEACHW model. The model has been verifying by two experimental measurements. The model has been compared with the Demetracopoulos model. The K' value which is a rate coefficient in the model is very important term in contaminant transport equation in a landfill. The value of K' is obtained by experimental works. This model could be applied to field scale problems for the landfill management. © 2008 Asian Network for Scientific Information.

引用

页码：629 / 635

页数：6

共 17 条

[11] Qasim S.R., Burchinal J.C., Leaching of pollutants from refuse beds, J. Sanitary Eng. Div. ASCE, 96, (1970)
[12] Rovers F.A., Farquhar G.J., Infiltration and landfill behavior, J. Environ. Eng. Div. ASCE, 99, EE5, (1973)
[13] Scarpino P.V., Donelly J.A., Pathogen content of landfill leachate municipal solid waste: Land disposal, Proceedings of the 5th Annual Research Symposium, EPA-600/9-79-023a, (1979)
[14] Straub W.A., Lynch D.R., Models of landfill leaching: Moisture flow and inorganic strength ASCE, J. Environ. Eng. Div, 108, EE2, pp. 231-250, (1982)
[15] Walsh J.J., Kinman R.N., Leachate and gas production under controlled moisture conditions, municipal solid waste: Land disposal, Proceedings of the 5th Annual Research Symposium, EPA-600/9-79-023a, (1979)
[16] Wigh R.J., Boone county field site interim report, (1979)
[17] Wigh R.J., Brunner D.R., Leachate production from landfilled municipal waste: Boone county field site in municipal solid waste: Land disposal, Proceedings of the Fifth Annual Research Symposium, EPA-600/ 9-79-023a, (1979)

← 1 2 →