title: [Conceptuel model of transport of trace metals (chromium and nickel) in the Sebou River--Morocco].
abstract: This paper examines trace metals' behavior, mainly chromium and nickel, in Sebou River in the level located between Sidi Harazem upstream and Azib Soltane downstream. The studied level is the most exposed to pollution with heavy metals rejected by Fès stream. This often condemns tens of kilometers of Sebou and leads to a threat and an important handicap for some catches of water located downstream of the town of Fès. The purpose is then to develop a physicochemical model simulating trace metals' behavior (Cr and Ni) in Sebou River. This model combines transport phenomena (advection and dispersion) with physical and chemical processes studied in the two compartments of the river: water column and sediment as sorption, diffusion, deposition, resuspension and burial. These processes are grouped under a conceptual model diagram and converted into an equations system solved by numeric methods. The model calibration uses a data of suspended matter, nickel and chromium concentrations measured in water column and sediment. Results shown in this paper are related to model development and calibration. They are consistent with the possibility of simulating the evolution for nickel, chromium and the suspended matter concentrations along the Sebou River.
authors.affiliation: 123 Rue Abou El waqt, Rce Sekkat, Bourgogne, Casablanca, Morocco.
authors.forename: B
authors.initials: B
authors.lastname: Es-Sette
authors.forename: Y
authors.initials: Y
authors.lastname: Ajdor
authors.forename: F
authors.initials: F
authors.lastname: Zidane
authors.forename: A
authors.initials: A
authors.lastname: Fakhraddine
authors.forename: A
authors.initials: A
authors.lastname: Foutlane
mesh_terms: D002857:Chromium / Q000737:chemistry*; D008956:Models, Chemical; D009018:Morocco; D009532:Nickel / Q000737:chemistry*; D045483:Rivers; D014872:Water Movements; D014874:Water Pollutants, Chemical
chemical_list: D014874:Water Pollutants, Chemical; D002857:Chromium; D009532:Nickel