As given in Table 2, high density polyethylene (HDPE), low density
polyethylene (LDPE/LLDPE), polypropylene (PP), Polyethylene
terephthalate (PET), polystyrene (PS) and polyvinyl chloride
(PVC) are the primary constituents of plastics in MSW. The blend
of the mixed waste plastics can be changed depending on the regional
habits and seasons of a year and on the mode of waste collection,
also (Chanda and Roy, 2007). Table 2 also shows that only
7.6% of 31 million tons (12.4% of MSW) of generated waste plastics
were recycled.