Simulation and modelling of heavy metals and water quality parameters in the river

Abstract

A one-dimensional qualitative model was created for this study’s modelling and phase transfer of the heavy metal dissolved in the river. The advection–diffusion equation considers the environmental variables temperature, dissolved oxygen, pH, and electrical conductivity as influencing parameters on the change in the concentration of the dissolved phase of heavy metals lead, cadmium, and zinc in springtime and winter. Hec-Ras hydrodynamic model and Qual2kw qualitative model have been used to determine the hydrodynamic and environmental parameters in the created model. The approach of minimizing simulation errors and Vba coding was employed to identify the constant coefficients for these relations, and the linear relation incorporating all of the parameters is thought to be the final connection. In order to simulate and calculate the concentration of the heavy metals in the dissolved phase at each site, the kinetic coefficient of the reaction corresponding to that point should be employed because the kinetic coefficient of the reaction varies in different portions of the river. Additionally, if the above mentioned environmental parameters are used in the spring and winter term of advection–diffusion equations, the accuracy of the developed model significantly improves, and the effect of other qualitative parameters is negligible, indicating that the model is effective at simulating the dissolved phase of heavy metals in the river.

Implementation of a Far-Field Water Quality Model for the Simulation of Trace Elements in an Eastern Mediterranean Coastal Embayment Receiving High Anthropogenic Pressure

“…In our case, this estimation could be improved only if more detailed field values were available. Otherwise, the parallel use of a hydrological model predicting river heavy metal concentrations [65] could be used to obtain more accurate predictions of discharges in the marine area.…”

Monitoring Water Quality Indicators over Matagorda Bay, Texas, Using Landsat-8

“…Water quality indicators (WQIs) are specific parameters used to assess the WQ in various ecosystems [5,6]. These indicators include parameters such as temperature, dissolved oxygen (DO), pH (hydrogen ion concentration), salinity, turbidity, suspended solids, nutrients, and heavy metals [7][8][9][10][11]. The ultimate purpose of monitoring WQIs is to identify changes in aquatic conditions and to provide data to decision makers, which they can use to inform their environmental management and protection practices [12][13][14].…”