The rapid increase in the consumption of plastics has also resulted in the simultaneous generation of enormous amount of waste plastics. The major sources of waste plastics are process industries, production industries and municipal solid wastes with the polyolefinic (polyethylenes and polypropylenes) wastes constituting the bulk. The plastics are non biodegradable and hence their increased utilization is also simultaneously resulting in increased generation of plastic wastes. The present methods of disposal of waste plastics like land filling and incineration have inherent drawbacks such as turning enormous amount of land into waste and emission of toxic gases. Hence there is a strong need to find a viable solution for utilization of these waste plastics. As plastics are high energy macromolecules and processed plastics also contain foreign materials like fillers, antioxidants and additives, a suitable process is required for conversion of waste plastics to value added products. The process should be environment friendly, simple and suitable for small as well as large scale units.
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