Transport of heavy metals contaminated leachate through agricultural soil

Abstract

Contaminations due to heavy metals in soil and groundwater is a widespread problem which affects the fertility and ph level of the soil. Especially considering the agricultural lands that are next to landfills with industrial, medical, domestic and technological waste have a higher risk of getting contaminated. The proposed model deals with two-layer problem containing leachate water from the waste landfill contaminated with heavy metals such as lead, mercury, cadmium, arsenic and chromium. The two-dimensional flow equation for the leachate water section and agricultural soil (red or black soil) with concentration buoyancy effect is studied. With the help of graphs, the results fluid flow, concentration of the heavy metals in the soil are discussed.