Loading...
Numerical groundwater quality assessment model using a new fourth-order scheme with Saulyev method
Author(s)
Khatbanjong, Suriyun
Date Issued
October 2, 2020
Type
Article
Abstract
Landfill is a cause of environmental groundwater pollutant. Landfill operations most feasible in many medium income developing countries. The groundwater pollutant measurement is required to control the drinking water quality. The mathematical model are introduced to predict the environmental impact assessment. The predicted impact of groundwater quality in is needed if a landfill project is planned to constant in considered area. In this research, a long term groundwater quality assessment in heterogenous soil model is proposed. There are two numerical models are introduced. The traditional forward time centered space finite difference technique is used to approximate the groundwater pollutant concentration in an area around a landfill. The new fourth-order finite difference technique with Saulyev method is also employed to approximate the solution as well. The approximated solutions are compared with the ideal exact solution. Both numerical techniques give good agreement approximated solution. The proposed new fourth-order scheme with Saulyev method give better approximated solution than the traditional method. The propose numerical models can be apply to predict the groundwater quality long period of time in another type of soil-physics.
Citation
Journal of Interdisciplinary Mathematics, 23(7), 1287-1308, 2020