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Nitrous Oxide: Prediction and Manament

Project leader: Thilo Hofmann
Ph.D. Student:  Ayuwat Thansate-Angkool

Global warming is predicted to be the cause of a massive drought. Due to the higher concentration of GHGs, it results in the increasing of the sun radiation on the earth’s surface. The vaporization process and the amount of rain fall in each year also would be changed, regarding to the decreasing of rain volume and shorten period of rainy season which have an effect to every life form on earth.
These greenhouse gases which causing the effect of global warming are gases in an atmosphere that absorb and emit radiation within the thermal infrared range. The effect of greenhouse gases is to trap heat within the surface-troposphere system. This mechanism is fundamentally different from that of an actual greenhouse, which works by isolating warm air inside the structure so that heat is not lost by convection. There are many types of greenhouse gases, but the most abundant greenhouse gases are water vapor, carbon dioxide, methane, nitrous oxide, ozone, and chlorofluorocarbons.
There are many options to predict the amount of GHGs that emitted from its sources and also the ways to handle with the GHGs. ‘Methane’ is one of GHGs that is normally considered because of its amount of emission and being as an alternative energy source. However, ‘Nitrous Oxide’ (N20) is one of GHGs that has a high emission volume. Even it is less than methane, but its potential is stronger than methane in many folds. One of the sources of N20 is from landfills. In many cases, the organic wastes which degraded in the landfills are normally food wastes as the agricultural product which is rich in nitrogen from the used of commercial and organic fertilizer. These organic wastes composted in the landfill and will release the N20 out to the atmosphere.

Objectives of the study
1.    To study on the process of the N20 generation from landfill site.
2.    To predict the amount of N20 that generated from the selected landfill.
3.    To find the suitable way for managing this N20 emission from landfill.

Department of Environmental Geosciences
University of Vienna

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