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Recycling

Recycling is an activity throug which we obtain products as of others already been used. In case of metals, we start refining waste used final producst to obtain new raw materials. During metal recycling we have to consider essential clues: enviromental protection, natural resssourses conservatin and preserving of energy sources. With the implementation of top technology in the case of recyclling aluminium, these clues are widely fulfilled, saving 95% of energy. That means,only 5% of the necessary energy to obtain aluminium as of bauxit is used. We can note the ecquation quality-enviromental care is perfectly accomplished. The example for aluminium reciclyng are cans. We begin with the selection and "deballing" which dismounts the bales separating ironed eklements with an electromagnet. After that, the shreding cuts the scrab to little pieces.

They are transported to an oven where exterior paint and internal sanitary varnish are burnt down. Gases expelled by this burning process are highgly dangerous and polluting, so they are led into a double-pass system to be purified before they get in contact with air. The last step is the fusion and dopping. The material is founded in rotative ovens with salt or by induction. Inert gases are insufflated during the process to pull impurities along as well as cheramic filters with diverse porossity filter the liquid metal along. In this way the metal in ingots is ready for use. The inclussion of the concept of recycling into daily life shows a neew formulation towards life. It is a re-posing and consciousness not only in today, but as an integral conception of human development in a cultural context, for preservation of life itself.

Víctor Kaniuka