【Review】
Sustainable Landfill Strategies――Literature Review of Approaches to Landfill Research in the West and Japan――
Toshihiko Matsuto* and Nobutoshi Tanaka*
Laboratory of Solid Waste Disposal Engineering, Hokkaido University
† Correspondence should be addressed to Toshihiko Matsuto:
（Kita 13 Nishi 8, Kita-ku, Sapporo, 060-8628 Japan）

Abstract
Landfill research on the promotion of stabilization in EU and North America were reviewed. The approaches employed before the mid-90's were categorized into: encouraging anaerobic decomposition, reduction of organics in waste being landfilled, partial aeration of waste, and flushing of organics. By increasing concern regarding the disadvantages of containment landfill or dry tomb, EU and North America have pursued different approaches: landfill bioreactor and reduction of organics by pre-treatment. However, both sides recently began to employ aerobisation, which has been the standard in Japan for the past 30 years. Other approaches taken in western countries have also been incorporated in the general operation of landfills in Japan. This concludes that Japan has been a leading runner of sustainable strategies for landfill stabilization.

Key words: MSW landfill, promotion of landfill stabilization, aerobic landfill, pre-treatment of waste, sustainable landfill