Futtsu City and 4 other cities in Chiba Prefecture - wide-area waste treatment with jointly installed melting furnaces (around 2000)
Around the year 2000, Japan's general waste administration was at a major turning point: the dioxin problem emerged in the late 1990s, and there were calls for the elimination of small-scale incinerators and the upgrading of high-performance incinerators, but the huge construction and maintenance costs required to upgrade facilities meant that local governments were limited in their ability to handle these issues alone. In addition, with the increasing pressure on final disposal sites, the conventional model of landfilling incinerated ash was becoming unsustainable.
Against this backdrop, a wide-area waste treatment plan to build a melting furnace jointly by the four cities of Futtsu, Kimitsu, Kisarazu, and Sodegaura was conceived as a realistic solution to meet the needs of the times. The plan is characterized by the installation of two melting furnaces, each with a capacity of 100 tons per day, in a dedicated industrial area for the centralized treatment of general waste, thereby achieving economies of scale and facility sharing that transcend municipal boundaries.
The melting furnace is a technology that melts the ash remaining after incineration at high temperature and converts it into glass-like slag, which stabilizes hazardous substances and allows the products to be reused as roadbed material and aggregate. This technology significantly reduces the amount of landfill and demonstrates the concept of positioning waste disposal as a part of resource recycling. Futtsu City is also expected to significantly reduce disposal costs, and the project has attracted attention as a model for both reducing financial burdens and responding to environmental issues. This plan was a pioneering example of wide-area coordinated waste treatment in the transition to a recycling-oriented society.
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