Kiyoshi Nishimura

Director of Nanto Recycling Center
(966 Tatenohara, Fukumitsu-cho, Nishitonami-gun, Toyama 939-16 Japan)

Abstract

A wide variety of rubbish in Japan simply goes to waste increasingly, as a result of a convenient, satisfied and non-recycling society. It is necessary to have a refuse-treatment-incinerator for urban refuse. Nevertheless, such a facility may not be easily put into use considering the scale of environmental pollution. So, attention is mainly focused on the refuse-derived-fuel (RDF). In this facility, garbage is sent through a machine to separate the metals. It is then crushed, dried and formed into a cylindrical shape. During the drying process, calcium hydroxide is added to prevent dangerous chlorine gas from being emitted when the RDF is burned. The energy obtained from burning RDF can be used to heat water and produce electricity, if possible, while the amount of waste heat that remains after combustion is less than half that of direct incineration. RDF is clean and easily meets governmental standards for environmental pollution.

Key words: non-pollution system of refuse-derived-fuel, recycling society, refuse-zero society, conservation of fossil fuel with utilization of urban refuse energy, dioxine