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Гоу Грийн

The Glass

Maybe it is good to mention that, for example, the recycling of two glass bottles saves energy enough to prepare five cups of tea. This is important not only if you like tea, of course.
To make glass the materials (silica sand, lime, sodium or potassium carbonate, magnesium, etc.) are mixed together in certain ratios and melted at 1500ºС. To make a kilogram of packing glass are used 2, 6 kg of starting materials, 13 kg of water and 800 grams of air. To produce a kilogram of recycled glass are used 550 grams materials, 7 kilograms of water and 400 grams of air.

The glass does not degrade in nature (unless you do not have the patience to wait 4000 years), and at the same time it is a material perfect for recycling because it could be remade in new glass products numerous times. The recycling saves unnecessary pollution – 20% of the air and 50% of the water. It saves a lot of energy which, otherwise, will be used to produce the primary glass. Once it is produced, the glass does not lose its' qualities – even when the material has been recycled numerous times.

Countries such as Switzerland and Finland are among the leaders in separate waste collection and, in particular, they recycle 90% of their glass. This impressive per cent has been reached not only because the common citizen put effort; but also with the involvement in the scheme of pubs, restaurants, hotels – maybe the biggest consumers of beer, wine and boxes with all kind of contents. If the separate waste collection becomes obligatory in these places in Bulgaria the quantity glass and aluminum in the colorful containers for separate waste collection will leap many times. This is an easy and entirely cost-free way for the business to become a part of responsible behavior that, most of us, the consumers, value and expect.

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next page: The Metal

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