Validation of Two-Phase Flow Model for Leachate Recirculation in Bioreactor Landfills

Table 3

Initial conditions used for model validations for the published field studies by Haydar and Khire [8].

Parameter	Value	Remarks	Source
Initial saturation () (%)	40	Initial value	—
Residual saturation () (%)		Laboratory experiments conducted on fresh MSW collected from French Bioreactor Landfill; Lab experiments on gravel used as DB material	Stoltz et al. [5] for fresh MSW; Haydar and Khire (2007) [13] for shredded tires in DB
MSW	25
Gravel	7.5
van Genuchten parameter () (/kPa)
MSW	2.9
Shredded tire in DB	4.5
van Genuchten parameter ()
MSW	0.318
Shredded tire in DB	0.699
van Genuchten parameter ()
MSW	0.50
Shredded tire in DB	0.50
van Genuchten parameter ()
MSW	0.50
Shredded tire in DB	0.50
Porosity () (%)		Varied between 40–70%
MSW	66
Shredded tire in DB	60
Saturated hydraulic conductivity		Assumed as per experiment results
MSW () (cm/s)
Shredded tire in DB () (cm/s)