Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2008.629.635MirbagheriS.A.Kazemi EsfehH.R.4200884The 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.]]>Aroa, T., N. Linde, A. Revil and J. Castermant,2007Birbeck, A.E.,1980Chain, E.S.K. and F.B. Dewalle,1976Demetracopoulos, A.C.,1986Fungaroli, A.A.,1971Hentrich, R.L.,1979Huston, J.I. and R.J. Wagenet,1989Khire, M.V. and M. Mukherjee,2007Leckie, J.D., J.G. Pacey and C.P. Halvadakis,1979McCreanor, P.T. and D.R. Reinhart,2000Phelps, D.H.,1988Pohland, F.G.,1975Pohland, F.G.,1979Qasim, S.R. and J.C. Burchinal,1970Raveh, A.,1979Report to Congress,1977Rovers, F.A. and G.J. Farquhar,1973Scarpino, P.V. and J.A. Donelly,1979Straub, W.A.,1980Straub, W.A.,1980Straub, W.A. and D.R. Lynch,1982Walsh, J.J. and R.N. Kinman,1979Wigh, R.J.,1979Wigh, R.J. and D.R. Brunner,1979