Engineering issues of Degradation of Waste Plastics into Fuel Oil for Recycling Society

The rate of increase of plastic waste has been exceeded the rate of increase of plastic production during the period of 1975-1998. The development of technologies for resource reutilization of waste materials will not only be based on the waste-conversion-to-resource techniques but also the development of techniques for the effective collection, sizing, separation and sorting of the waste, and usage and transportation of the products from waste will be necessary. The treatment of waste materials must not be limited only to the scale-up of the treatment plants. Considering the population density and nature of locality, construction of small-scale plant for intermediate treatment will be essential. Even after repeated reutilization and resourceconversion of waste material the generation of ultimate refuse can not be avoided. Accepting this fact, formulation of a strategy for a progressive society with "Less Emission" will be necessary. For this purpose, arrangements of treatment facilities for the ultimate refuse will be essential. Among them, there is an urgent need for the development of technology for the treatment of halogen containing ultimate refuse.

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