Environmental Load Assessment of Disposal and Utilization of MSW Incineration Ash and Waste Plastics

Susumu Sano*, Makihiko Ichikawa*, Takamiki Tamashige*, Toshihiko Matsuto** and Nobutoshi Tanaka**
* Taiheiyo Cement Corporation
** Hokkaido University, Lab of Solid Waste Disposal Engineering
+ Correspondence should be addressed to Susumu Sano:
(2-4-2 Osaku, Sakura-City, Chiba 285-8655 Japan)

Abstract
This study deals with quantitative analyses of environmental loads resulting from utilization or disposal of the incineration ash from MSW (Municipal Solid Waste) . Recycling of waste plastics collected separately from households is also evaluated. The study proves that ash utilization, as a raw material of cement production after chlorine removal with the "ash-rinsing technology" , is a highly effective for preventing means to global warming and prolonging the lifetime of landfill sites. The latest cement production process also enables effective utilization of waste plastics as an alternative fuel, thereby effectively preventing global warming and also preserving natural energy sources.

Key words: MSW incineration ash, waste plastic, global warming, final disposal site, cement