Modelled mobility of heavy metals in water and sediments

In this study, based on an analytical system proposed in the literature, mobility, and transport of heavy metals and also, sedimentation was performed simulation and modeling, under dynamic conditions, considering the material balance and complementary equations. The simulation of metal accumulation in water pillar and sediments was first performed with different inflow metal concentration ranging from 0.001 to 0.1 g/m3 at a certain value of influent water flow rate. Also, the value of the index related to incoming and output flow was modified. This simulation performed for a period of 300 days. The results showed modeling and simulation can be applied as a tool for fast assessment of metal transport in water and sediments because it requires a minimal number of measurements. The modeling demonstrated that the system is dynamic, and reach the steady state depending on volumetric flow rate of water into water and, in a less extent, on the concentration of the metal in the incoming flow water stream. The concentration of the dissolved heavy metal, as well as that of the adsorbed to solid particles, depends mainly on the concentration of the heavy metal in the incoming flow water stream.