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Evaluation of Environmental Load and Cost of PET Bottle Recycling Systems

PET瓶回收系统的环境负荷和成本评估

基本信息

批准号：
14550552
负责人：
WADA Yasuhiko
金额：
$ 1.66万
依托单位：
Kansai University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550552/
关键词：
PET bottles LCA LCC Consumer consciousness Recovery rate of PET bottles reproduction goods Recycling systems Bottle to bottle 総合評価リユース AHP エコデザイン

项目摘要

We examined whether the present PET bottles recycling system would be reduction of environmental load and cost. Furthermore, the development plans of the reproduction goods of PET bottle were examined from a consumer's consciousness. The results obtained by research are shown below.(1)Environmental load is reduced by PET bottle recycling. Because, CO_2 emission of the bottle manufacturing by virgin material and the incineration are large.2)If the recovery rate of PET bottle is high, cost can be reduced by recycling. Because, it is higher for cost to manufacture PET bottles by virgin material rather than recycling material.(3)In order to reduce environmental load and cost in PET bottle recycling, it is important to raise the recovery rate.(4)We evaluated every each bottle the virgin PET bottles, the recycling PET bottles and the reuse PET bottles by environmental load, cost and the acceptance intention of the residents. As a result, when the recovery rate of PET bottles is 50% or less, evaluation of virgin PET bottles is the best. When the recovery rate of PET bottles is 50% or more, evaluation of recycling PET bottles is the best.(5)About the reproduction goods of PET bottles, the acceptance intention of the residents of a recycling PET bottle is good.(6)About reproduction goods other than recycling PET bottles, the young generations consider that a price is important rather than environment load. However, the elderly generations consider that environment load is important rather than the price. It is necessary to take this difference into consideration in development of reproduction goods.By the above result, we attained the all subjects of research.

我们研究了目前的PET瓶回收系统是否会减少环境负荷和成本。并从消费者的意识出发，探讨了PET瓶复制品的发展规划。研究结果表明：(1)回收利用降低了环境负荷。因为，原料瓶和焚烧瓶的二氧化碳排放量大。2)如果PET瓶的回收率高，可以通过回收降低成本。为了减少PET瓶回收过程中的环境负荷和成本，提高回收利用率是非常重要的。(4)从环境负荷、成本和居民的接受意愿三个方面对每个瓶子进行评估。因此，当PET瓶的回收率为50%或更低时，原始PET瓶的评价最好。当PET瓶回收率在50%或以上时，对回收PET瓶的评价最好。(5)对于PET瓶的再生品，回收PET瓶的居民接受意愿较好。(6)对于回收PET瓶以外的再生品，年轻一代认为价格比环境负荷更重要。然而，年长的一代认为环境负荷比价格更重要。在再生产产品的开发中，有必要考虑这一差异。通过以上结果，我们得出了所有的研究课题。