Plastic in municipal solid waste streams make up only 7–9% of
the weight of the total waste stream, by volume they may
represent 20–30%. Of the organic waste stream, that is, after
removal of glass, metals, etc., plastics are about 9–12% by weight
[7]. In addition to the presence of plastics in municipal waste
streams, many wastes collected from manufacturing or service
industries may contain much higher proportions of plastics