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Computational Ecology and Software, 2013, 3(2): 33-43
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Article

An ecological type nonlinear model for the removal of carbon dioxide from the atmosphere by introducing liquid species

Shyam Sundar
Department of Mathematics, P. S. Institute of Technology, Kalpi Road, Bhauti, Kanpur - 208020, India

Received 9 March 2013;Accepted 13 April 2013;Published online 1 June 2013
IAEES

Abstract
The average temperature of our planet is increasing in past several decades due to emission of global warming gases such as CO2, CH4, etc. in the atmosphere leading to undesirable environmental consequences. Therefore, it is necessary to find a mechanism by which a global warming gas can be removed from the regional atmosphere. In this paper, therefore, we proposed an ecological type nonlinear mathematical model for the removal of a global warming gas CO2 from the regional atmosphere by externally introduced liquid species, which may react with this gas and removed it by gravity. The model consists of three dependent variables namely; the concentration of carbon dioxide, the concentration of externally introduced liquid species and the concentration of particulate matters (secondary species) formed due to interaction of carbon dioxide with liquid species. The local and global stability conditions are discussed using Routh-Hurwitz criteria and suitable Lyapunove's function respectively. It is shown, analytically and numerically, that the concentration of carbon dioxide decreases as the rate of introduction of externally introduced liquid species increases.

Keywords carbon dioxide;liquid species;particulate matters;stability;mathematical model.


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