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I’ve been looking for different ways to deal with plastic waste for a long time and this article lists some important ones. Nowadays, there are a whole host of options – big and small that you can implement at the micro and macro level anywhere. In India, there is a hierarchy in which garbage collectors from the lowest tier collect and sell secondary raw materials to dealers who sell them to wholesalers and recyclers. Formal large-scale operations involve private collectors who sell directly to recyclers.
First, we know how important it is to REDUCE the use of plastic and we come across messages like “Say no to plastic bags” or similar every day. If we look at the bags we receive from large retailers, we can see that most of them comply with Indian government orders to use bags over 20 microns thick, but the problem still lies in their responsible disposal. What will be the use of their thickness or quality if we are still in the habit of throwing them anywhere that leads to clogging of roads and sewers? The solution is the use of appropriate disposal techniques and segregation through colorful litter bins. (Government Notice on the 1999 Recycled Plastics Manufacturing and Use Policy and Amendment (2003) prohibiting the use of plastic shipping bags with a thickness of 20 microns or more to codify and label plastic products)
To move to technology options for dealing with plastic, here is a list of solutions being implemented in India and other countries-
1. Recovery of resources through environmentally friendly and economically viable mechanical recycling into secondary raw materials for the processing industry. In India, it is the main plastic waste business.
2. Energy recovery through thermal disintegration using plasma pyrolysis and combustion.
3. India’s Zadgaonkar model to turn plastic into fuel.
4. Catalytic Pyrolysis – Again to convert plastic into oil.
5. Construction of roads from plastic waste by mixing with bitumen.
6. Plastic waste used as a reducing agent in blast furnaces and cement kilns.
7. Packaging waste from composite plastics transformed into recycled boards.
8. Reuse of used plastic transport bags for handicrafts.
9. Mechanical recycling – by melting, grinding plastic granules.
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Source by Manik Thapar