Table. 2 Parameters and concentration of leachates used for simulation.

From: Modelling contaminant transport in fly ash–bentonite composite landfill liner: mechanism of different types of ions

Parameters

Value

Contaminant

Concentration (ppm)

Permissible Concentration (ppm)

Seepage velocity (cm/year)

0.2346

Chloride

4,000

250

\(\Delta t\) (year)

1

Zinc

3.2

3

\(\Delta x\) (cm)

14

Iron

73.6

3

\(\theta \)

0.33

Lead

19.4

0.05

  

Copper

62.6

2