Construction of a Garbage Disposal Plant in Toshima City - The Realities of Municipal Solid Waste Policies and Related Technologies in the 1990s

Construction of a Garbage Disposal Plant in Toshima City - The Realities of Municipal Solid Waste Policies and Related Technologies in the 1990s

In the 1990s, Tokyo was faced with an urgent need for high-performance incineration facilities and their decentralized location against the backdrop of increasing waste volume and tight final disposal sites, as well as the dioxin problem in Sakai City. The Tokyo Metropolitan Government has adopted the "principle of disposal within one's own ward" and has established a system that enables stable disposal in each ward. The new cleaning plant in Kami-Ikebukuro, Toshima Ward, is part of this effort, and construction of a facility with a capacity to process 400 tons per day was scheduled for completion in 1999 on the site of a former mammoth swimming pool. The new facility, scheduled for completion in 1999, will feature a state-of-the-art fluidized-bed incinerator, which will enable uniform combustion and reduction of acidic gases. Exhaust gas treatment combines a quenching system, lime spray, activated carbon, and fabric filters to significantly reduce dioxin and mercury. In addi
tion, the SNCR system was used to reduce nitrogen oxides, and SCR was also considered in some cases. Odor and noise control measures were also emphasized, and negative pressure management, sound deadening technology, and continuous emission monitoring using CEMS were introduced. In terms of resource recycling, iron/non-ferrous metal recovery and slagging by ash melting were promoted to reduce the final disposal volume. Exhaust heat was supplied to district heating and cooling, swimming pools, and other facilities to serve as an urban energy hub. This plan represented the achievement of Tokyo in the 1990s, integrating safety, resource recycling, and regional symbiosis in an urban area.