Special Issues Waste Landfill and Environment Preservation. Present Condition and Trends of Sea Area Final Disposal Sites.

概要

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Large cities such as the ward area of Tokyo and the city of Osaka depend upon sea area landfilling and the Osaka Bay Environmental Regional Center for Waste Disposal has been operating smoothly. From these matters, municipalities suffering from not being able to secure suitable sites are turning their eyes to the sea areas.<BR>However, suitable sea area landfill site are limited, because effects from natural conditions, such as waves, are very large at sea areas. Moreover, it has its own disadvantages, as leachate must be treated for a long period of time.<BR>When a new landfill site is secured, it is required that landfill materials must be limited to those materials in which environmental impact is low and materials must be treated so as to ultimately raise the value of the land. The environment for the growth of marine organisms must be considered for the duration of construction, and sea area landfilling must coexist with the local fishing and marine facilities.