Plastic Recycling

Major benefits of plastics recycling are reduced depletion of non-renewable resources and reduction of world-wide waste. Traditional thermo-mechanical recycling causes reduction of mechanic£ll properties for most thermoplastics. Down-cycled materials may nevertheless be suited for certain useful applications. Developing such applications may be a step towards more effective future use of resources. Increased application of recycled thermoplastics is generally preferable over landfills, or waste lying around in some parts of the world. Different recycled high-impact polystyrenes (HIPS) from TVs were mechanically tested, as well as mixtures of them. Mixtures of a low-density polyethylene (LDPE) and a polypropylene (PP) were tested as well, representing a large portion of mixed plastics waste. A contribution was made to a process improvement for creating products from street waste in Kenya. Mixing different recycled HIPS grades gave no significant changes in melt flow index and impact strength. One mixture showed a significant reduction in tensile strength. In PP-LDPE mixtures there was an indication of improved mechanical impact resistance of the PP by addition of LDPE in several percentages. In Kenya a separation process utilizing simple equipment was introduced which enabled constant and improved quality of final products made of plastic waste.

Philosophical Transactions of the Royal Society B: Biological Sciences, 2009

Plastics are inexpensive, lightweight and durable materials, which can readily be moulded into a variety of products that find use in a wide range of applications. As a consequence, the production of plastics has increased markedly over the last 60 years. However, current levels of their usage and disposal generate several environmental problems. Around 4 per cent of world oil and gas production, a non-renewable resource, is used as feedstock for plastics and a further 3 -4% is expended to provide energy for their manufacture. A major portion of plastic produced each year is used to make disposable items of packaging or other short-lived products that are discarded within a year of manufacture. These two observations alone indicate that our current use of plastics is not sustainable. In addition, because of the durability of the polymers involved, substantial quantities of discarded end-of-life plastics are accumulating as debris in landfills and in natural habitats worldwide.

A short history o f the practice cf plastics recycling as practiced i n

RG, 2023

Plastic pollution has become an escalating global crisis, exerting detrimental impacts on ecosystems, wildlife, and human health. This research paper delves into the pivotal role of plastic recycling as a solution to mitigate the dire consequences of plastic waste. By analyzing the economic, technological, and policy dimensions of plastic recycling, this study underscores its significance in preserving the environment and fostering a sustainable future. Through comprehensive research and analysis, this paper highlights the challenges, opportunities, and future prospects associated with plastic recycling, emphasizing the need for collective action and behavioral shifts to combat plastic pollution.

Plastic waste management faces severe challenges and opportunities worldwide, regardless of their sustainability awareness and technological advances. In this paper, a better framework for plastic waste management and close loop recycling is proposed. A special emphasis is paid on functional analysis of recycling and utility of a cross functional team for plastic waste management. Paper also focuses on investigating the behaviour of stakeholders and factors that influence the techniques and management of the plastic waste but also the environmental, socioeconomic , institutional and legal linkages present to enable the overall system to functioning.

2019

The paper discusses about how most of the usable plastic materials are been reused into an useful process. In the current scenario, the plastic usage are been in the higher demand. Though we are been used to the usage of plastic in the daily day today life activities. Since its also an family member to our society. The plastics or plastic materials are been used widely in commercial and industrial sectors. Most of the plastic are been disposed along the road sides and they do not decompose in land for several years. Since when the plastic gets into the ground surface it does not allow the other substances to move in. thus it causes several problems to the landfill and surroundings. When the plastic are been burnt it causes several pollution to the environment and health effects to the people. Only few plastic materials are been used or reused again for the regular usage. My study tells about how effectively the plastics or these materials are been used<br> in the eco-friendly ...

Recycling of plastic packaging waste: problems, technological limitations, efficiency of technological equipment, 2020

Recycling of plastic packaging waste: problems, technological limitations, efficiency of technological equipment 4 ACKNOWLEDGEMENTS We would like to thanks our capstone project advisor and our dean, Anar Valiyev, who always helped us with our questions and concerns during the capstone project preparation. We are grateful to him since he always opened us with his worthwhile advice and experiences that encouraged us to handle all the obstacles that we face during the preparation process. With the feedbacks of Dr. Valiyev, we found our project in the right direction. We also would like to mention our appreciation to, Mehman Nabiyev who is our professional supervisor in The Ministry of Ecology and Natural Resources who allowed us to get objective information about the recycling process in Azerbaijan and participated in our interview. He was always ready to answer all our questions and share all the data that he had with us. With his assistance and efforts, we were able to finish our project more easily and efficiently. This research would not be objective and realistic without the participants of the interview. We are thankful to both of Mehman Nasibli and our interviewers for their worthwhile contribution. With the help of respondents, we got valuable information and data that realistically demonstrated the situation in the state on the recycling process. We would also thank the State Statistical Committee of the Republic of Azerbaijan that we were able to get all the statistics from the reliable source.

2014

This publication has been published with financial support by the Nordic Council of Ministers. However, the contents of this publication do not necessarily reflect the views, policies or recommendations of the Nordic Council of Ministers. www.norden.org/en/publications Nordic cooperation Nordic cooperation is one of the world's most extensive forms of regional collaboration,

History and Theory, 2024

This article explores the relation between testimony and history by considering the recent “ethical turn” toward experience and memory in historical research. By way of a brief history of the concept of testimony in historical research, the article pinpoints current discussions as being about historical understanding rather than factual knowledge about the past. With reference to the revaluation of history within the linguistic turn, influential historical theorists have argued that abandoning objectivism calls for a rapprochement between historical research and attempts to make sense of the past in accounts of memory. Both history and memory accounts, they argue, offer forms of understanding that are equally conditioned by language as well as politics, culture, and identity. Thus, the inclusion of testimony has been framed as not only legitimate but also important for an “ethical” understanding of the past within historiographical discourse. In relation to this development, the article shows that abandoning objectivism in the wake of the linguistic turn cannot justify a general rapprochement between history and memory accounts. On the contrary, abandoning objectivism only increases the importance of appreciating the conceptual distinction between testimony and history as different forms of understanding. For clarifying the conceptual distinction, the article reexamines R. G. Collingwood's (in)famous contention that “testimony … stops where history begins.” Collingwood's main point was not, as previous interpreters have argued, only about epistemology but was about the qualitative difference between historical and practical pasts. In conclusion, the article articulates the importance of the distinction between history and practice in relation to questions about the historian's ethical responsibility.