京都大学 / 0048 / 新制・課程博士 / 博士(エネルギー科学) / 甲第21882号 / エネ博第383号 / 新制||エネ||74(附属図書館) / 京都大学大学院エネルギー科学研究科エネルギー社会・環境科学専攻 / (主査)教授 石原 慶一, 教授 東野 達, 教授 酒井 伸一 / 学位規則第4条第1項該当 / Doctor of Energy Science / Kyoto University / DFAM

The late 1960s introduced legislation regarding waste to the national level in Sweden. During the 1970s new legislation expanded what was included in, and further defined, the management of waste. With changes and additions to legislation a municipal monopoly on waste management was established in 1975. In this paper a descriptive case study is conducted featuring the municipality of Härnösand in Västernorrland County. In 1974 the formerly municipal activity concerning waste was transferred to the municipal corporation AB Härnösands Industriverk. Through archival material subsisting of minutes originating from Härnösands municipal executive committee and the company board of AB Härnösands Industriverk, as well as annual reports by the latter, the establishment and development of waste and recycling management during the years of 1973—1980 is presented.

No description available.

No description available.

No description available.

No description available.

No description available.

Concern over construction and demolition (C&D) wastes is becoming a prevalent part of any construction project. Historically, landfilling waste materials was the standard solution for most contractors, but as tipping fees have risen dramatically over the past five to seven years, many contractors are looking for alternative methods, such as recycling or waste minimization, to reduce wastes. This thesis investigates C&D wastes and proposes a methodology to address the problem of assessing waste disposal techniques efficiently and economically. A brief history of C&D wastes is provided to understand how and why costs associated with waste materials have risen over the last several years. Current waste management resources are discussed to demonstrate the availability of alternative disposal methods. An overall waste management plan is developed to provide a contractor with a step by step flowchart for analyzing material wastes, quantitatively assessing all costs associated with waste disposal, and implementing and updating the chosen waste management techniques. A case study is provided to illustrate how the waste management plan is used in an actual project. The thesis concludes with a discussion of the potential for further research in the area of C&D waste management. / Master of Science

No

This thesis investigates the implementation of circular economy principles in plastic waste management, focusing on challenges and strategies within the European context. The study highlights the significance of CE in transforming the plastic industry by promoting resource efficiency, waste reduction, and systemic collaboration among stakeholders. It explores the theoretical foundations of CE, the 9R framework, and waste hierarchy, alongside European regulations such as the Packaging and Packaging Waste Directive, the Waste Framework Directive, and the Circular Economy Action Plan. Through a comparative analysis of two companies, one in Germany and one in Sweden, the research examines the diverse approaches to plastic waste management, emphasizing the role of regulatory compliance, partnerships, and consumer engagement. The findings reveal that while both companies are committed to circularity, their strategies differ based on market position, operational context, and customer dynamics. The study identifies key obstacles, such as inefficiencies in recycling systems, consumer behavior, and regulatory challenges, that hinder the full realization of CE principles. The thesis underscores the importance of interdisciplinary collaboration, innovative solutions, and robust policy frameworks in advancing CE transitions. It is concluded that, although CE provides a promising framework for addressing plastic waste, achieving its full potential requires focused efforts across multiple sectors. Recommendations for future research include expanding case studies, exploring specific supply chain stages, and examining the long-term effectiveness of CE initiatives.