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AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name. |
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STUDIA GEOGRAPHIA - Issue no. 2 / 2008 | |||||||
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THE WASTE RECYCLING. Authors: DANA-NELICA CAMPEAN. |
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Abstract: The Waste Recycling. The increasing quantity of waste raises serious problems as regarding storage and endangers the environment, that’s why in the modern world to reuse totally or partially these wastes become a necessity. Today, much waste recycling is not only an ecological necessity, but also an economical necessity too. For example, to exploit metals from minerals is becoming more and more expensive due to the fact that the rich and easy accessible natural reserves are almost finished and it becomes worthy to collect the waste from different materials. Some wastes are reused and they circle in a tight circle. In this category we can mention some packaging like bottles and reusable plastic. Usually we don’t consider them as wastes. Others are turned back to industry, after sorting, to enter in a cycling process. This happens with the paper, broken pieces of glass (or reusable glass), metals. The rubber and the plastic can be process by pyrolyses or gasification to obtain fuel gas or materials for chemical industry. In the worst case scenario, the last one can be burned, the heat being retrieved and CO2 and H2O are introduced in the environment. The most rational way to collect waste for recycling is to select them from the beginning, and in this case to be send to the specific industrial branch to be reused. This means that the waste have to be put in different containers. |
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