Evaluation of Recycling System of Beverage Polyethylene Terephthalate Bottle in Citizens' Acceptance Intention

Wada, Yasuhiko; Nakano, Kazuko; Ozaki, Taira; Iwamoto, Ayano

doi:10.2208/jscej.2004.769_43

Cited by 1 publication

(1 citation statement)

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“…The role of life cycle assessment (LCA) as a decision‐support tool for the design of solid waste management, including plastic recycling, has been discussed in many papers (e.g., Finnveden and Ekvall 1998; Arena et al 2003a; Askham‐Nyland et al 2003; Ekvall et al 2007). Many LCA case studies have shown the effectiveness of the material recycling of plastics, particularly PET bottles, from the perspective of carbon dioxide (CO 2 ) emissions and energy consumption (Fukushima and Hirao 2000; Tokai and Furuichi 2000; Yasuda 2001; Arena et al 2003b; Wada et al 2004; Sugiyama et al 2006; Matsuda and Kubota 2008). The crucial reason for the effectiveness of the mechanical recycling is that, as far as nonrenewable resources are concerned, recycling processes are often less resource‐intensive than production processes for equivalent virgin products replaced by recycled products (Bjorklund and Finnveden 2005).…”

Section: Introductionmentioning

confidence: 99%

Multicriteria Design of Plastic Recycling Based on Quality Information and Environmental Impacts

Nakatani¹,

Hirao

2011

Journal of Industrial Ecology

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In this study, we develop a framework for the multicriteria design of plastic recycling based on quality information and environmental impacts for the purpose of supporting collaborative decision making among consumers, municipalities, and recyclers. The subject of this article is the mechanical recycling of postconsumer polyethylene terephthalate (PET) bottles. We present a "quality conversion matrix," which links the quality of recycled PET resin to the quality of waste PET bottles and operational conditions, described in terms of the functions of modules constituting the entire recycling process. We estimate the quality of recycled PET resin and simulate the applicability to the intended products as the primary criterion by confirming whether the estimated quality of recycled resin satisfies the quality demands of PET resin users. The amounts of carbon dioxide (CO 2 ) emissions and fossil resource consumption are also estimated as the secondary criteria. An approach to collaborative decision making utilizing mixed-integer linear programming (MILP) and Monte Carlo simulation is proposed on the premise of different objectives of various stakeholders, where all the feasible optimal solutions for achieving the quality demands are obtained. The quality requirements of waste bottles, along with the CO 2 emissions and fossil resource consumption estimated for each solution, contribute to the collaborative multicriteria design of plastic recycling.

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