Proceedings of the Annual Conference of The Japan Society of Waste Management Experts
The 18th Annual Conference of The Japan Society of Waste Management Experts
Displaying 1-50 of 365 articles from this issue
  • Rokuta Inaba, Seizi Hashimoto, Yuuichi Moriguchi
    Pages 1
    Published: 2007
    Released on J-STAGE: November 23, 2007
    CONFERENCE PROCEEDINGS FREE ACCESS
    Although recycling systems sometimes participate in the complex processes of existing industries, some Life Cycle Assessment (LCA) studies omitted those processes partially or entirely from their system boundary. Therefore, influence of recycling on existing industry was clarified and influence of setting system boundary on LCA was discussed in this study. Concerned with recycling for plastic containers and packaging, several cases were supposed to include feedstock recycling in the steel industry and energy recovery by waste incineration. System boundaries were established to include or exclude the processes in the steel works. Inventory analysis was conducted based on those two system boundaries. Consequently there was remarkable difference between result by excluding complex processes in existing industry and result by including the processes. In order to estimate recycling in existing industry by LCA, it is necessary to clarify the processes in the existing industry influenced by introduction of recycled materials, and to establish the system boundary including the processes.
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  • Tasaki Tomohiro
    Pages 2
    Published: 2007
    Released on J-STAGE: November 23, 2007
    CONFERENCE PROCEEDINGS FREE ACCESS
  • Hazime Yamakawa
    Pages 3
    Published: 2007
    Released on J-STAGE: November 23, 2007
    CONFERENCE PROCEEDINGS FREE ACCESS
    This paper reviewed author's researches on unit pricing program for municipal solid waste, especially on the topics of waste reduction and its sustainablitiy, illegal dumping and its countermeasures, and historical trace and future development of burden of payment for waste management. It also indicated issues for further researches. Author's past study revealed that waste reduction achieved by unit pricing program was sustained over an average of at least 10 years. Author also studied countermeasures against illegal dumping, but still left many issues. As for the burden sharing of municipal waste management, author indicated that historical study of the waste management system was neccesary today because it had to be changed for establishing sound material-cycle society.
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