Ozone layer depletion
What is an ozone and why it depletes? Ozone layer is a natural filter of ultraviolet rays Scientific studies state that the cause of ozone depletion is chemicals which contain chlorine or bromine Chemicals CFCs 80% of ozone depletion Halons Even more harmful than CFCs HCFCs Less harmful than CFCs Methyl chloroform CCl 4
WHY DID I CHOSE THIS TOPIC? ü ü ü It is interesting It has considerable effects It excites me It has scientific solutions There are enough academic sources
What are the social implications? Effects On public health Skin cancer Cataracts and photokeratitis Deteriorates the immune system On the environment Alters the temperature and the structure of atmosphere Influence of the climate change Causes also influence on other problems such as ocean acidification, photochemical smog, air pollution and global warming
Basal cell carcinoma
Cutaneous melanoma
Squamous cell carcinoma
Possible scientific solutions Using ozone depleting substances in laboratory Destruction of ODS`s Air conditioning Stationary refrigeration
Destruction technologies Incineration technologies Nonincineration technologies Plasma technologies
Working title and thesis statement: Which destruction technologies is the most effective in dealing with ozone depleting substances? A primary objective of this paper is to evaluate the types of destruction technologies such as incineration, non-incineration and plasma technologies, and to determine which type is the most effective for protection the ozone layer. The objective will be reached by comparing the most common facilities from each type of technologies: Cement Kiln from incineration, Super-Heated Steam Reactor from non-incineration and Inductively coupled radio frequency plasma from plasma technologies. They will be evaluated by each of the criteria: 1. economic benefit, 2. efficiency, 3. absence of harmful side effects. The essay will show that non-incineration type is the most suitable in comparison with others.
Description of facilities 1. Economic benefit Cement Kiln Super Heated steam reactor Inductively coupled radio frequency plasma Cement Kiln Main body 2. Efficiency Steam reactor I. C. R. F. plasma 3. Harmful side effects Cement Kiln
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