Abstract
Quality control technologies for landfill MSW on a global scale and C&D waste in Japan were reviewed. A method known as mechanical biological treatment (MBT), which combines mechanical sorting and biological treatments, is being introduced in Europe as a means for developing a technology that will reduce organic materials in MSW. There are two directions MSW disposal can take in Asia : incineration dominant or utilization of combined incineration and biological treatments. The crushing and separation process of mixed C&D waste not only removes organics from landfill waste, but also recovers secondary resources. A technological issue related to this technology will be quality control of sieved residues. The cost benefits of applicable technologies must also be considered. Improvements in flexibility and economic efficiency for adapting to local situations will be necessary in order to universalize intermediate treatment technologies in Japan.
