Thursday, May 5, 2011

Plastic waste recycling


The following article talks about plastic waste recycling, plastic waste recycling methods and the advantages of plastic waste recycling. 

Plastic waste recycling

There are many uses of plastic waste, once the waste has been disgarded. one way is to recycle plastic waste is to use it in the construction of roads.  Process of Road laying using polymer- aggregate – Bitumen mix. The plastic waste (bags, cups, Thermocole) made out of PE, PP, & PS are separated, cleaned if needed and shredded to small pieces (passing through 4.35mm sieve) The aggregate (granite) is heated to 170oC in the Mini hot Mix Plant and the shredded plastic waste is added, it gets softened and coated over the aggregate. Immediately the hot Bitumen (160oC) is added and mixed well. As the polymer and the bitumen are is the molten state (liquid state) they get mixed and the blend is formed at surface of the aggregate. The mixture is transferred to the road and the road is laid. This technique is extended to Central Mixing Plant too.

MOEF (cpcb.nic.in)


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