Title: Efficient mathematical model to verify the leaching process effect in a watercourse

Authors: Amanda de Cassia Da Cunha; Elaine Cristina Catapani Poletti

Addresses: School of Technology – FT, State University of Campinas – UNICAMP, 13.484-332, Limeira, SP, Brazil ' School of Technology – FT, State University of Campinas – UNICAMP, 13.484-332, Limeira, SP, Brazil

Abstract: This paper presents the viability to use a mathematical model to ascertain the pollutant carriage in a watercourse, under the leaching process effect or not. An impoundment system was divided in 15 compartments homeomorphic to rectangles, and the simulations considered results in analysis of biochemical oxygen demand, and natural decay rate variations, among other variables. A system of difference equations was used for modelling. It is reliable to use this model to predict pollutant concentration in water, and to simulate the runoff effects with different decay rates.

Keywords: self-depuration; biochemical oxygen demand; BOD; water resources; differential equations; decay rate; decay capability; leaching process; computer simulation; mathematical modelling; hydrology science; watercourses; pollutant concentration; water pollution; runoff effects.

DOI: 10.1504/IJHST.2015.071349

International Journal of Hydrology Science and Technology, 2015 Vol.5 No.3, pp.233 - 240

Received: 05 Dec 2014
Accepted: 16 May 2015
Published online: 21 Aug 2015 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article