A Literature Analysis of Definitions for a Circular Economy

2020 ◽  
pp. 19-34
Author(s):  
Usama Awan ◽  
Narmeen Kanwal ◽  
Mohammed Khurrum S. Bhutta
Keyword(s):  
Circular Economy ◽  
Literature Analysis

scholarly journals Migration of Sulfur and Nitrogen in the Pyrolysis Products of Waste and Contaminated Plastics

2021 ◽  
Vol 11 (10) ◽  
pp. 4374
Author(s):  
Waldemar Ścierski
Keyword(s):  
Circular Economy ◽  
Physicochemical Parameters ◽  
Literature Analysis ◽  
Waste Plastics ◽  
Pyrolysis Process ◽  
Pyrolysis Products ◽  
Plastics Recycling ◽  
A Value ◽  
Mixed Waste ◽  
Pyrolytic Oil

The most advantageous way of managing plastics, according to circular economy assumptions, is recycling, i.e., reusing them. There are three types of plastics recycling: mechanical, chemical and energy recycling. The products of the pyrolysis process can be used for both chemical and energy recycling. Possibilities of further use of pyrolysis products depend on their physicochemical parameters. Getting to know these parameters was the aim of the research, some of which are presented in this article. The paper presents the research position for conducting the pyrolysis process and discusses the results of research on pyrolysis products of waste plastics. The process was conducted to obtain the temperature of 425 °C in the pyrolytic chamber. Such a value was chosen on the basis of my own previous research and literature analysis. The focus was on the migration of sulfur and nitrogen, as in some processes these substances may pose a certain problem. Studies have shown high possibilities of migration of these elements in products of pyrolysis process. It has been shown that the migration of sulfur is similar in the case of homogeneous and mixed waste plastics—it immobilizes mainly in pyrolytic oil. Different results were obtained for nitrogen. For homogeneous plastics, nitrogen immobilizes mainly in char and oil, whereas for mixed plastics, nitrogen immobilizes in pyrolytic gas.

The circular economy and circular economic concepts-a literature analysis and redefinition

2017 ◽  
Vol 60 (5) ◽  
pp. 771-782 ◽  
Author(s):  
Sylvie Geisendorf ◽  
Felicitas Pietrulla
Keyword(s):  
Circular Economy ◽  
Literature Analysis

scholarly journals Business Model Experimentation for the Circular Economy: Definition and Approaches

2021 ◽  
Author(s):  
Nancy M. P. Bocken ◽  
Ilka Weissbrod ◽  
Maria Antikainen
Keyword(s):  
Business Model ◽  
Circular Economy ◽  
Real Life ◽  
Literature Analysis ◽  
Rapid Learning ◽  
Value Propositions ◽  
Shared Goal ◽  
Life Context ◽  
Key Driver ◽  
Business Competitiveness

AbstractBusiness model experimentation has been identified as a key driver for business competitiveness but is underexplored in the sustainability and circular economy spheres. What is business model experimentation for the circular economy? This study follows a two-step approach: a literature analysis followed by a qualitative practitioner study. Based on these, circular business model experimentation is defined as an iterative approach to develop and test circular value propositions in a real-life context with customers and stakeholders, starting with a shared goal. It involves rapid learning based on empirical data to provide evidence on the viability of circular value propositions. Iterations involve increased complexity of experiments. There is a learning focus on initiating wider transitions, such as transforming consumer behaviours for the circular economy. We visualise the emerging research landscape, including research streams from business, transitions, engineering, and design. Practically, we illuminate how practitioners view the concept and current experimentation tools and approaches.

scholarly journals Sorting and Recycling of Lightweight Packaging in Germany — Climate Impacts and Options for Increasing Circularity Using Tracer-Based-Sorting

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Anina Kusch ◽  
Johannes Gasde ◽  
Carolin Deregowski ◽  
Jörg Woidasky ◽  
Claus Lang-Koetz ◽  
...  
Keyword(s):  
Primary Production ◽  
Specific Energy ◽  
Circular Economy ◽  
Material Flow ◽  
Flow Model ◽  
Climate Impacts ◽  
Environmentally Benign ◽  
Literature Analysis ◽  
High Quality ◽  
Identification Techniques

AbstractThis paper elaborates an energy and material flow model for conventional lightweight packaging sorting and recycling in Germany based on literature analysis and information provided by industry experts. The model is used to determine specific energy and material demands of particular lightweight packaging fractions and their respective climate impacts. Fluorescent-based identification techniques, tracer-based-sorting in particular, are assessed as an option to increase material circularity due to improved sorting and recycling accuracy. In comparison to primary production of lightweight packaging, conventional sorting and recycling saves 565 kg CO2-eq./Mg of input sorting. A total of four implementation scenarios are considered, reflecting the percentage of mixed plastics and residuals that can be mechanically processed through improved sorting (10%, 50%, 90% and 100%). Using tracer-based-sorting, these savings increase from 578 up to 1227 kg CO2-eq/Mg depending on implementation scenario. This paper concludes that tracer-based-sorting can contribute to an environmentally benign circular economy by yielding high-quality regranulates, which are capable of substituting more carbon-intensive primary production of lightweight packaging.

scholarly journals The e-consumer as part of a circular economy

2020 ◽  
Vol 2020 (1(55)) ◽  
pp. 60-68
Author(s):  
Paweł Lorek
Keyword(s):  
Economic System ◽  
Circular Economy ◽  
Critical Analysis ◽  
Consumption Patterns ◽  
Literature Analysis ◽  
Economy Model ◽  
Interesting Issue ◽  
Internet Technologies ◽  
Economic Barriers

The article is related to the problem of the transition of today’s economic system towards a circular economy model. This transformation is becoming a necessity due to environmental limitations. An interesting issue is the role of ICT in this matter, especially internet technologies. According to the presented analysis, these technologies do have capabilities to support consumer activities, which are consistent with the principles of a circular economy. This support can be essential for changing consumer’s attitudes and making their consumption patterns more sustainable. Nevertheless, there are some technical, social and economic barriers which may occur during this process. Literature analysis and critical analysis were used as research methods. The article concludes that, despite many barriers, the potential of internet technologies for circular economy support is very promising

scholarly journals THE STUDY ABOUT ELECTRIC VEHICLES IN LITHUANIA

2021 ◽  
Vol 6 ◽  
pp. 255-263
Author(s):  
Jurgita Ginavičienė ◽  
Indrė Sprogytė
Keyword(s):  
Energy Efficiency ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Circular Economy ◽  
Scientific Literature ◽  
Literature Analysis ◽  
Electric Cars ◽  
Electric Car ◽  
Electrical Vehicle ◽  
Vehicle Market

Electric cars are very important for the circular economy. If we are using the electric vehicle we can reduce emission savings and protect the environment. Electric vehicles can contribute to energy efficiency, reducing carbon emissions unfortunately, despite everything, the development of the electric vehicle market in Lithuania remains relatively slow. Electric vehicles are more expensive than traditional vehicles, there is a lack of the necessary infrastructure, and consumers do not have enough information on the benefits of green cars. The main purpose of this article is to research electric vehicles market in Lithuania. The methods of research include scientific literature analysis, statistics data comparative analysis. Electrical vehicle market in Lithuania is growing. From 2017 until 2020 M1 class electric cars was purchased 35 %. At the same period the market of new electric car increased 50 %, used electric vehicle increased only 27 %.  

Clinical studies on herbal remedies in children: A systematic literature analysis

Planta Medica ◽  
2014 ◽  
Vol 80 (16) ◽  
Author(s):  
P Marquardt ◽  
K Kraft ◽  
K Nieber
Keyword(s):  
Clinical Studies ◽  
Herbal Remedies ◽  
Literature Analysis

Development trends of circular economy: Case study of Ukraine

2017 ◽  
pp. 51-66
Author(s):  
Tamara Merkulova ◽  
Kateryna Kononova ◽  
Olena Titomir
Keyword(s):  
Circular Economy ◽  
Development Trends

Transitioning Business for a Circular Economy

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Susan EVANS
Keyword(s):  
Professional Practice ◽  
Circular Economy ◽  
Radical Change ◽  
Virtual Space ◽  
Professional Experience ◽  
Operational Model ◽  
New Vision ◽  
To Come ◽  
Space Requirements

This case study explores the strategic business opportunities, for Lane Crawford, an iconic luxury department store, to transition in a circular economy towards sustainability. A new experimentation framework was developed and conducted among cross departmental employees, during a Design Lab, with intention to co-create novel Circular Economy business concepts towards a new vision: the later was a reframe of the old system based on the principles of sustainability; to move beyond a linear operational model towards a circular economy that can contribute to a regenerative society. This work draws on both academic and professional experience and was conducted through professional practice. It was found that innovative co-created concepts, output from the Design Lab, can create radical change in a circular economy that is holistically beneficial and financially viable; looking forward to extract greater value a)Internal organization requires remodeling to transform towards a circular economy; b)Requirement for more horizonal teams across departments vs solely vertical; c)New language and relationships are required to be able to transition towards a circular economy; d)Some form of physical and virtual space requirements, for cross-disciplinary teams to come together to co-create; e)Ability to iterate, learn and evolve requires agency across the business

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