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Release: December 15, 1997


The joint venture of NGK INSULATORS, LTD. (President: Masaharu Shibata, Head Office: Nagoya) and RECYCLING MANAGEMENT JAPAN, INC. received an order for a refuse derived fuel ("RDF") processing plant on December 10, 1997, from Shinnanyo-city in Yamaguchi prefecture.

At the RDF processing plant, municipal solid waste ("MSW") is converted into a solid fuel called RDF. The delivered MSW is first sorted to combustibles and noncombustibles, and only combustible waste is granulated, dried and formed into RDF. RDF is then used as fuel for air-cooling and heating systems and swimming pools at public facilities, such as public halls and schools, and for RDF power generation. RDF has the following characteristics;

  1. Since RDF has a low water content, it can achieve stable combustion, which generates consistent caloric value. Because of this, generation of harmful substances, such as dioxine in the exhaust gas, can be reduced.
  2. RDF is easily transported and stored; therefore, it can be widely utilized as fuel at public facilities and RDF power stations.

The RDF processing plant, which NGK's joint venture received an order, is planned to be constructed in Rinkai-cho of Shinnanyo-city. This plant can handle 48 tons of MSW per day, and produce approximately 24 tons of RDF per day. The amount of the order received is 3.78 billion yen. Plant construction will start in December, 1997, and is scheduled to be completed in March, 1999. Of RDF produced at the plant, one-third will be used in the drying process of RDF at the plant itself. The remaining two-thirds is to be supplied to the Shinnanyo plant of TOSOH CORPORATION , as fuel for its cement kiln.

NGK reached an agreement with the South Ena District Sanitary Affairs Association in Gifu prefecture (Representative: Kanzo Abe) in August, 1997 to conduct field test of the next generation MSW disposal system, introducing NGK's state-of-the-art technology, which is called "the fluidized bed pyrolysis melting process". In addition to this, NGK's participation in RDF business, which contributes to waste recycling, will make NGK more actively involved in solid waste disposal business as environmental plant maker. NGK is pursuing net sales of 10 billion yen in 2001 from its solid waste disposal business as a whole.

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