History of the Ash Washing System
March 1995
Kumagaya-shi calls for a research alliance with the Company on the effective use of incinerator ash (both ash and soot).March 1996
Launch of tests on incinerator ash characteristics.March–October 1997
March 1997Saitama Prefectural Government established its Sainokuni Plant Doubling Project for adopting technology that uses water to dechlorinate incineration ash.
Launched research on recycling ash for use in cement.
Based on the above-mentioned project, Saitama launched the Saitama Zero-Emissions Exploratory Committee to investigate three businesses (study of refuse derived fuel, or RDF, effective use of molten slag, and effective use of incinerator waste) to ascertain the viability of zero emissions for general waste.
October 1997
Built a pilot plant.