scholarly journals Towards a Sustainable Circular Economy – Remarks on plastics and wood-waste sector

2019 ◽  
Vol 3 (4) ◽  
pp. 149-183 ◽  
Author(s):  
Markus Will
Keyword(s):  
Case Studies ◽  
Research Methods ◽  
Market Economy ◽  
Circular Economy ◽  
Traditional Approach ◽  
Wood Waste ◽  
Waste Streams ◽  
Capitalist Economy ◽  
Waste Sector

Aim: As the traditional approach towards entering a path of sustainabe development based on a „efficiency, consistency, sufficiency aproach“ is questionable, This article discusses opportunities and challenges for the circular economy to become a „last chance“ fort he current capitaist system to become more sustainable.Design / Research methods: Two case studies of material (waste) streams of plastics and wood-waste are presented in order to identify challenges in the development and functioning of the circular economy. Conclusions / findings: While the circular economy can deal with threats to sustainability embraced in an efficiency and sufficiency approach, it refers to a technology-driven consistency approach, not questioning the consumption and production patterns in the capitalist economy, and the functioning of the market economy as such.

scholarly journals A New Mindset for Circular Economy Strategies: Case Studies of Circularity in the Use of Water

2020 ◽  
Vol 12 (22) ◽  
pp. 9781
Author(s):  
Elisabeth Viles ◽  
Javier Santos ◽  
Tamara Fernández Arévalo ◽  
Martín Tanco ◽  
Florencia Kalemkerian
Keyword(s):  
Case Studies ◽  
Resource Use ◽  
Circular Economy ◽  
Production Management ◽  
Production Systems ◽  
Traditional Approach ◽  
Use Of Resources ◽  
Production Processes ◽  
New Strategy ◽  
Holistic Vision

In a circular economy (CE) environment, it is important to make good and efficient use of resources and consider that the waste generated in production processes can be a valuable resource. However, the tools and methodologies conventionally used to analyze and evaluate production systems are based on techniques focused on linear production management models, where the primary purpose is to reduce the treatment and management of waste as much as possible and where productive and environmental efficiency are not evaluated simultaneously. Changing the paradigm from a linear to a circular economy requires that a new strategy for production systems be defined, one that makes production processes simultaneously circular and efficient (in terms of quality and productivity). In this context, a holistic vision is needed when implementing CE strategies. Therefore, the main aim of this paper is to provide evidence, through two real case studies in the use of water, that the management of this resource without considering systemic thinking may not be the most circular solution. Main results showed that improvements based on the traditional approach of reducing resource use cannot provide the best results if they are supported only by current process consumption without considering the circularity of resources.

The superiority of circular economy solutions in the main sectors of an innovative and prospering economy – a case study from Iceland

2020 ◽  
Author(s):  
David C. Finger ◽  
Halldór G. Svavarsson ◽  
Bryndís Björnsdóttir ◽  
Guðrún A. Sævarsdóttir ◽  
Lea Lea Böhme
Keyword(s):  
Case Studies ◽  
Circular Economy ◽  
Resource Recovery ◽  
Local Economy ◽  
Market Potential ◽  
Environmental Crisis ◽  
Waste Streams ◽  
Economic Output ◽  
Use Of Resources ◽  
Industrial Sectors

<p>Circular economy solutions reuse and upcycle waste streams in order to minimize the use of resources and mitigate the creation of waste and emissions. Accordingly, circular economy solutions are an essential tool to tackle the imminent challenges of depleting resources and the emerging environmental crisis. In this presentation, we explore the circular solutions for resource recovery in waste streams in a country with one of the highest Gross Domestic Product (GDP) and Human Development Index (HDI) in Europe, Iceland. The economy of Iceland is mainly based on renewable energy, fishery, farming, metallurgy, and tourism. To assess the benefits of circular economy solutions we examine four relevant case studies from the following industrial sectors in Iceland: i) a geothermal energy plant, ii) fisheries, iii) domestic waste processing and iv) aluminium production. By describing the processes, the opportunities and the market potential of the circular economy solutions in the four case studies we identify the superiority of circular recovery of resources in a modern society. The results reveal that the recovery of resources reduces the environmental impacts, increases the economic output and enhances the resilience of the local economy. While our results are based on the examples in Iceland the described processes of resource recovery can be applied in any other country with similar resources. We conclude that the presented circular solutions could lead to a more sustainable world while preserving vital resources for the next generations.</p>

scholarly journals Young children’s language-based agency in multilingual contexts in Luxembourg and Israel

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Mila Schwartz ◽  
Claudine Kirsch ◽  
Simone Mortini
Keyword(s):  
Learning Environment ◽  
Case Studies ◽  
Research Methods ◽  
Language Policies ◽  
Educational Settings ◽  
Structured Interviews ◽  
Self Monitoring ◽  
Teachers And Parents ◽  
Linguistic Backgrounds ◽  
Longitudinal Case Studies

AbstractDrawing on two longitudinal case-studies, this study aimed to identify some salient characteristics of the agentic behaviour of two young emergent multilinguals in two different multilingual contexts: Luxembourg and Israel. Despite the fact that the studies were conducted independently, the two cases were analysed together owing to the similarities in the research methods such as video-recorded observations, and semi-structured interviews with teachers and parents. The data were analysed through thematic and conversational analyses. Findings showed that a boy who learned Luxembourgish in Luxembourg and a girl who learned Hebrew in Israel, were outgoing and active learners who influenced their learning environment. We identified 10 types of agentic behaviour, including engaging in repetition after peers and the teacher, creatively producing language, translanguaging, and self-monitoring. Despite differences of the children’s sociocultural and linguistic backgrounds, and the language policies of their educational settings, we found a striking overlap in their language-based agentic behaviours. We suggest that the identified types can encourage further research in this field. Although our study with talkative children allowed us to observe many types of agentic behaviours, we cannot claim that less outgoing children or children who do not show the same behaviours do not have ways of expressing their agency.

scholarly journals The Key Strategies to Implement Circular Economy in Building Projects—A Case Study of Taiwan

2021 ◽  
Vol 13 (2) ◽  
pp. 754
Author(s):  
H.-Ping Tserng ◽  
Cheng-Mo Chou ◽  
Yun-Tsui Chang
Keyword(s):  
Case Studies ◽  
Circular Economy ◽  
Building Industry ◽  
Structured Interviews ◽  
Pilot Projects ◽  
Building Projects ◽  
The World ◽  
Project Phases ◽  
Future Project

The building industry is blamed for consuming enormous natural resources and creating massive solid waste worldwide. In response to this, the concept of circular economy (CE) has gained much attention in the sector in recent years. Many pilot building projects that implemented CE concepts started to appear around the world, including Taiwan. However, compared with the pilot projects in the Netherlands, which are regarded as the pioneer ones by international society, many CE-related practices are not implemented in pilot cases in Taiwan. To assist future project stakeholders to recognize what the key CE-related practices are and how they could be implemented in their building projects in Taiwan, this study has conducted a series of case studies of Dutch and Taiwanese pilot projects and semi-structured interviews with key project stakeholders of Taiwanese pilot projects. Thirty key CE-related practices are identified via case studies, along with their related 5R principles (Rethink, Reduce, Reuse, Repair, Recycle) and project phases. Suggestion on CE-related practices, their 5R principles, project items, and phases to implement in building projects in Taiwan is also proposed while discussion on differences between two countries’ pilot projects is presented.

scholarly journals A Framework for Implementing and Tracking Circular Economy in Cities: The Case of Porto

2019 ◽  
Vol 11 (6) ◽  
pp. 1813 ◽  
Author(s):  
António Cavaleiro de Ferreira ◽  
Francesco Fuso-Nerini
Keyword(s):  
Economic System ◽  
Case Studies ◽  
Circular Economy ◽  
Research Gaps ◽  
Meso Level ◽  
Population Research ◽  
Key Concepts ◽  
Significant Barrier ◽  
The City

Circular economy (CE) is an emerging concept that contrasts the linear economic system. This concept is particularly relevant for cities, currently hosting approximately 50% of the world’s population. Research gaps in the analysis and implementation of circular economy in cities are a significant barrier to its implementation. This paper presents a multi-sectorial and macro-meso level framework to monitor (and set goals for) circular economy implementation in cities. Based on literature and case studies, it encompasses CE key concepts, such as flexibility, modularity, and transparency. It is structured to include all sectors in which circular economy could be adopted in a city. The framework is then tested in Porto, Portugal, monitoring the circularity of the city and considering its different sectors.

scholarly journals Extending Multilevel Statistical Entropy Analysis towards Plastic Recyclability Prediction

2021 ◽  
Vol 13 (6) ◽  
pp. 3553
Author(s):  
Philippe Nimmegeers ◽  
Alexej Parchomenko ◽  
Paul De Meulenaere ◽  
Dagmar R. D’hooge ◽  
Paul H. M. Van Steenberge ◽  
...  
Keyword(s):  
Circular Economy ◽  
Real Life ◽  
Plastic Waste ◽  
Entropy Analysis ◽  
Waste Collection ◽  
Statistical Entropy ◽  
Waste Streams ◽  
Material Component ◽  
Future Work

Multilevel statistical entropy analysis (SEA) is a method that has been recently proposed to evaluate circular economy strategies on the material, component and product levels to identify critical stages of resource and functionality losses. However, the comparison of technological alternatives may be difficult, and equal entropies do not necessarily correspond with equal recyclability. A coupling with energy consumption aspects is strongly recommended but largely lacking. The aim of this paper is to improve the multilevel SEA method to reliably assess the recyclability of plastics. Therefore, the multilevel SEA method is first applied to a conceptual case study of a fictitious bag filled with plastics, and the possibilities and limitations of the method are highlighted. Subsequently, it is proposed to extend the method with the computation of the relative decomposition energies of components and products. Finally, two recyclability metrics are proposed. A plastic waste collection bag filled with plastic bottles is used as a case study to illustrate the potential of the developed extended multilevel SEA method. The proposed extension allows us to estimate the recyclability of plastics. In future work, this method will be refined and other potential extensions will be studied together with applications to real-life plastic products and plastic waste streams.

scholarly journals Design, Materials, and Extrusion-Based Additive Manufacturing in Circular Economy Contexts: From Waste to New Products

2021 ◽  
Vol 13 (13) ◽  
pp. 7269
Author(s):  
Alessia Romani ◽  
Valentina Rognoli ◽  
Marinella Levi
Keyword(s):  
Additive Manufacturing ◽  
Case Studies ◽  
Circular Economy ◽  
Academic Research ◽  
Design Strategies ◽  
Academic Context ◽  
Application Fields ◽  
Research And Design ◽  
Specific Contribution ◽  
New Strategies

The transition toward circular economy models has been progressively promoted in the last few years. Different disciplines and strategies may significantly support this change. Although the specific contribution derived from design, material science, and additive manufacturing is well-established, their interdisciplinary relationship in circular economy contexts is relatively unexplored. This paper aims to review the main case studies related to new circular economy models for waste valorization through extrusion-based additive manufacturing, circular materials, and new design strategies. The general patterns were investigated through a comprehensive analysis of 74 case studies from academic research and design practice in the last six-year period (2015–2021), focusing on the application fields, the 3D printing technologies, and the materials. Further considerations and future trends were then included by looking at the relevant funded projects and case studies of 2021. A broader number of applications, circular materials, and technologies were explored by the academic context, concerning the practice-based scenario linked to more consolidated fields. Thanks to the development of new strategies and experiential tools, academic research and practice can be linked to foster new opportunities to implement circular economy models.

scholarly journals Poland’s Proposal for a Safe Solution of Waste Treatment during the COVID-19 Pandemic and Circular Economy Connection

2021 ◽  
Vol 11 (9) ◽  
pp. 3939
Author(s):  
Krzysztof Pikoń ◽  
Nikolina Poranek ◽  
Adrian Czajkowski ◽  
Beata Łaźniewska-Piekarczyk
Keyword(s):  
Thermal Treatment ◽  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Economic Impact ◽  
Circular Economy ◽  
Waste Treatment ◽  
Management Systems ◽  
Waste Streams

The purpose of the study presented in this text is to show the influence of COVID-19 on waste management systems and circular economy stream, and their impact on circular economy, particularly the economic impact of the pandemic on the waste management sector, impact on circular economy objectives’ implementation as well as additional challenges like the need for hygienization of waste streams during different implementation efforts, such as changes in the municipal solid waste market and different waste processes of their disposal. Additionally, some methods—such as thermal treatment—which seemed to be not fully aligned with the circular economy approach have advantages not taken into account before. Incineration of higher volume of waste affects the waste structure and will change some of the circular economy objectives. The analysis was carried out on the example of the Polish market.

Kegiatan Hubungan Internal Melalui Human Relations

2020 ◽  
Vol 2 (4) ◽  
pp. 381-400
Author(s):  
Saeful Rahman ◽  
Saeful Rahman
Keyword(s):  
Qualitative Research ◽  
Public Relations ◽  
Case Studies ◽  
Research Methods ◽  
Qualitative Research Methods ◽  
Human Relations ◽  
Internal Relations ◽  
Family Gathering

ABSTRAK Tujuan penlitian kegiatan hubungan internal melalui human relations pada PT. Dias Design Consult adalah untuk mengetahui bagaimana pimpinan perusahaan menjalankan prinsip-prinsip human relations dalam hubungan internal, agar terciptanya hubungan yang harmonis dalam perusahaan secara efektif dan efisien. Penelitian ini menggunakan metode penelitian kualitatif dengan pendeketan studi kasus dan paradigma konstruktivstik. Hasil penelitian dengan menggunakan konsep POAC (Planning, Organizing, Actuating, Controling) pimpinan perusahaan dalam melakukan kegiatan hubungan internal melalui human relations dalam menjaga, meningkatkan, memelihara dan membangun hubungan harmonis dalam publik internal menerapkan prinsip-prinsip hubungan antar manusia dengan kegiatan hubungan antar mansuia yang bersifat memberikan kenyamanan dan kepuasan hati melalui perkumpulan keluarga, bonus tahunan, pujian dan konseling. Kata Kunci : Hubungan Internal; Human Relations; Public Relations ABSTRACT The purpose of researching internal relations activities through human relations at PT. Dias Design Consult is to find out how company leaders carry out the principles of human relations in internal relations, in order to create harmonious relationships within the company effectively and efficiently. This study uses qualitative research methods with a series of case studies and constructive paradigms. The results of the study using the concept of POAC (Planning, Organizing, Actuating, Controling) company leaders in carrying out internal relations activities through human relations in maintaining, improving, maintaining and building harmonious relationships in the internal public apply the principles of human relations with activities between human relations which is to provide comfort and satisfaction through family gathering, annual bonuses, praise and counseling. Keywords : Internal Relations: Human Relations; Public Relations

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