Agriculture does not presently exist without use of the plastic materials. According to the Waste Management and Public Cleansing Law (WMPCL), farmers in Japan are responsible for proper disposal of waste agricultural plastics (WAP). Because WAP from farms has such characteristics as being with small, many, dispersive, and spread over wide areas, and having seasonal discharge, building of efficient collection systems for WAP, development of processing technology, and expansion of recycling materials market are very important subjects for establishing recycling of WAP. Although regional differences still remain, the recycling rate of WAP expanded into 61 percent from 19 percent in Japan over the past 20 years through the cooperative dealing with local governments and Agricultural Coops in touch with the revision of WMPL. The overall process of the proper disposal of WAP is under both mandatory control while also subject to competitive markets. It has become to be concerned as trading materials in East Asia around after 2000, stopped for the dealings between the domestic persons before that. Reflecting such conditions, the processors who aim at export with simple disposal have steadily increased, and conventional processors failed their management of WAP recycling, which aims at the domestic circulation. Many newcomers have withdrawn and competition based on cost cutting has intensified in the current depression. As a result, the WAP recycling circulation continues to develop in East Asia wide, and its systematic management of the proper disposal has become more difficult.
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