Integration of Building and Urban Systems Promoting Waste Management : Part 3-Analysis of Specific Environmetal Load of Waste Disposal

Abstract

How the material flow of municipal waste can be controled was investigated from the waste composition and questionaire (Parts 1 and 2). It is essential to grasp the environmental loads from each key waste treatment process in order to evaluate the effect of whole waste management systems from separate collection to waste treatment, landfill dumping. For the main processes of waste disposal, waste collection, incineration and landfill, the LCI data for several targets were specified, compared with each other, and then analysed from several viewpoints. Such results were obtained, that waste collection efficiency can be increased, that desulfurizing process and power generation play major roles for CO_2 emission from incineration sites, and that liner and soil stabilization are the basic components of landfill site construction. As a result, specific environmental loads for each process were obtained in this paper.