Discretization of flow contain nitrate in porous media by finite volume technique
Journal Title: International Journal of Environmental Science and Technology - Year 2005, Vol 1, Issue 4
Abstract
One of the most important pollutants of groudwaters is nitrate. Different human activities including the application of chemical fertilizers in agriculture, causes the emission of nitrate into groudwaters. In this paper, the dynamic effect of soil moisture on carbon and nitrogen cycles has been analyzed by presenting a connection between soil moisture sample and nonlinear differential equations. At present, wide researches are carried out on modeling soil moisture control in solution flows contain nitrate. In order to do so, separation of energy conservation law equations is carried out by a particular method. The mathematical model governing the nitrate containing current in non-isotropic environment has been presented in the form of combined equations. Equation for distribution in multiple environments and Darcy rule has been considered in this model. Then, using finite volume method, separation of flows contain nitrate in porous media is carried out. The current flux is obtained from central difference approximations or upwind approximation. Mashad plain has been considered for case study at this research. Carrying out calibration operation, the measured results have been contrasted with numerical results of finite volume method. After testing the model, it is possible to foresee the way of nitrate changes in other nodes of calculation network. Using these forecasts, the quality of drinking water for several next years is determined. Carrying out numerical modeling by finite volume method, it is found out that the quality of drinking water of Mashad plain would be suitable for the next ten years.
Authors and Affiliations
H. R. Vosoughifar, A. Shamsai , T. Ebadi
Keywords
Related Articles
- EP ID EP128920
- DOI -
- Views 97
- Downloads 0
Response of arbuscular mycorrhizal mungbean plants to ambient air pollution
The experiments were conducted in open top chamber system installed at the University of the Punjab, Quaid-e-Azam Campus, Lahore, Pakistan. The mungbean (Vigna radiata (L.) Wilczek var.M28) seeds were sown in earthen pot...
Polycyclic aromatic hydrocarbons in Niger Delta soil: contamination sources and profiles
The distribution and sources of PAHs in soil as well as PAHs profiles have been investigated in areas with anthropogenic pollution in the Niger Delta (Nigeria) such as Warri and Ughelli. PAHs were identified in 21 soil s...
Slow arsenic poisoning of the contaminated groundwater users
This paper gives impact of Arsenic contaminated water on human health as well as overview of the extent and severity of groundwater arsenic contamination in Bangladesh. Scalp hair is the most important part of the human...
Comparative efficacy of brown, green and red seaweeds in the control of root infecting fungi and okra
The effect of soil amendment by brown, green and red seaweeds was studied in controlling the root rot infecting fungi of okra seedlings in the greenhouse. The soil amendment with seaweeds Stokeyia indica, Padina pavonia...
An empirical study of the implementation of green supply chain management practices in the electrical and electronic industry and their relation to organizational performances
This study aims to investigate the green supply chain management practices likely to be adopted by the electrical and electronic industry in Taiwan, which is dominated by Original Equipment Manufacturing and Original Des...