A convection-diffusion model to determine the position of heavy metal pollution source in topsoil

Author

Yu Shaochen ; He Shanshan ; Li Guangyu ; Gao Hongmin

Author_Institution

Sch. of Software Eng., Beijing Inst. of Technol., Beijing, China

fYear

2012

fDate

Oct. 30 2012-Nov. 2 2012

Firstpage

1188

Lastpage

1192

Abstract

In order to research water pollution problem in soil or underground water and determine the position of metal pollution source of certain region, the convection-diffusion model to determine the position of heavy metal pollution source in topsoil is established based on solute migration theory and actual measured data of heavy metal content in topsoil of certain region combined with deterministic solute migration model. The model expounds the method of rotation of coordinates and numerical insulation using reference coordinate system which follows the movement of fluid particle, discusses migration law of soluble pollution in soil or aquifer in function of water flow and solves partial differential equation by least square method to determine the position of pollution source accurately.

Keywords

convection; diffusion; groundwater; hydrological techniques; least squares approximations; partial differential equations; soil; soil pollution; water pollution; water quality; aquifer; convection-diffusion model; deterministic solute; discusses soluble pollution migration law; fluid particle movement; heavy metal content data; heavy metal pollution source; least square method; numerical insulation; partial differential equation; reference coordinate system; rotation coordinates; soil; solute migration theory; topsoil; underground water; water flow; water pollution problem; Boundary conditions; Equations; Mathematical model; Metals; Soil; Water pollution; Convection-diffusion equation; Coordinate transformation; Least square method; Pollution source; Solute migration;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Communication Technologies (WICT), 2012 World Congress on

Conference_Location

Trivandrum

Print_ISBN

978-1-4673-4806-5

Type

conf

DOI

10.1109/WICT.2012.6409255

Filename

6409255