2.2. PET bottle recycling
Recycling involves reintroducing into the system, part of the
material and energy that would otherwise be waste. It is an alternative
for reducing waste; however, some aspects regarding the
benefits and the reuse of recyclable material have to be clarified
(Grimberg and Blauth, 1998).
According to Manzini and Vezzoli (2005), extending the lifespan
of materials means making them last longer than the products they
are part of, i.e., materials can be re-processed into secondary raw
materials. This is called recycling and can take place through two
distinct processes:
(a) Closed loop recycling:Aproduction system in which the waste or
byproduct of one process or product is used in making another
product or derived component. In theory, this process can be
used for a certain period of time without introduction of virgin
materials.
(b) Open loop recycling: A recycling system in which a product
made from one type of material is recycled into a different type
of product. This occurs normally in post-consumer materials.
In this process, different products and manufacturers may be
involved.
2.2. PET bottle recyclingRecycling involves reintroducing into the system, part of thematerial and energy that would otherwise be waste. It is an alternativefor reducing waste; however, some aspects regarding thebenefits and the reuse of recyclable material have to be clarified(Grimberg and Blauth, 1998).According to Manzini and Vezzoli (2005), extending the lifespanof materials means making them last longer than the products theyare part of, i.e., materials can be re-processed into secondary rawmaterials. This is called recycling and can take place through twodistinct processes:(a) Closed loop recycling:Aproduction system in which the waste orbyproduct of one process or product is used in making anotherproduct or derived component. In theory, this process can beused for a certain period of time without introduction of virginmaterials.(b) Open loop recycling: A recycling system in which a productmade from one type of material is recycled into a different typeof product. This occurs normally in post-consumer materials.In this process, different products and manufacturers may beinvolved.
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