scholarly journals Pyro-Oil and Wax Recovery from Reclaimed Plastic Waste in a Continuous Auger Pyrolysis Reactor

Energies ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 2040 ◽  
Author(s):  
Sultan Majed Al-Salem ◽  
Yang Yang ◽  
Jiawei Wang ◽  
Gary Anthony Leeke
Keyword(s):  
Product Distribution ◽  
Plastic Waste ◽  
Densification Process ◽  
Plastic Pollution ◽  
Waste Plastic ◽  
Diesel Fuels ◽  
Plastic Recycling ◽  
Plastic Wastes ◽  
Liquid Products ◽  
Pyrolysis Reactor

The increasing global waste plastic pollution is urging people to take immediate actions on effective plastic recycling and processing. In this work, we report the results of processing reclaimed plastic wastes from unsanitary landfill site in Kuwait by using a bench scale continuous auger pyrolysis system. The plastic feedstock was characterised. After a simple thermal densification process, the material was fed to the pyrolysis system at 500 °C. The pyro-oil and wax products were collected and characterised. The process mass balance was developed on dry basis, and the yields of pyro-oil, light wax, heavy wax and gases were 5.5, 23.8, 69.4 and 1.3 wt%, respectively. The findings have indicated that the reclamation of plastic waste from landfill was feasible in terms of the product distribution and characteristics. Further liquid analysis confirmed that the liquid products contained fractions that are comparable to petrol and diesel fuels. The wax products are viable and have potential application as coating, covering and lubrication.

scholarly journals Recycling of Plastic Waste by Using Pyrolysis Reactor: A Case Study of First Marine Protected Area of Pakistan (Astola Island)

2021 ◽  
Author(s):  
Misbah Youngish ◽  
Uzaira Rafique ◽  
Asma Jabeen ◽  
Faisal Baloch
Keyword(s):  
Protected Area ◽  
Marine Protected Area ◽  
Coal Fly Ash ◽  
Product Formation ◽  
Plastic Waste ◽  
Marine Ecology ◽  
Plastic Pollution ◽  
Plastic Recycling ◽  
Degradation Temperature ◽  
Pyrolysis Reactor

Astola Island is the first marine protected area of Pakistan acknowledged 2017, June 15. It is a rich biodiversity hotspot, Ramsar site inhabiting endangered species like Green turtle, Hawksbill turtle, and Arabian Humpback whale. A saw-scaled Russell’s viper is endemic to Island. Marine ecology of Astola Island is affected by plastic pollution resulting in coral destruction, ocean acidification, global warming, fishing nets blockage, water pollution, and coastal erosion. Zeolite catalyst synthesized from environmentally friendly way by coal fly ash to degrade collected plastic waste from Island into useful products in pyrolysis reactor. The synthesized catalyst functionalized further with three type of organosilane(1) Octyltriethoxysilane(OS),(2)Phenyltriethoxysilane(PS)(3)Vinyltriethoxysilane(VS).Zeolite functionalize with octyltriethoxy silane (ZO) shows the highest performance in plastic pyrolysis, resulting in lower degradation temperature, low residue and more product formation may be due to having long chain hydrocarbon and acidic sites. Plastic recycling is the promising solution to tackle plastic blooming issue. Which is negatively impacting all the compartments of ecosystem especially marine environment.

scholarly journals Reducing plastic waste for the competitiveness of Vietnamese tourist attractions

2020 ◽  
Vol 210 ◽  
pp. 01011
Author(s):  
Minh Tuan Tran ◽  
Trung Luong Pham ◽  
Xuan Tung Nguyen
Keyword(s):  
Public Education ◽  
Sustainable Tourism ◽  
Plastic Waste ◽  
Plastic Pollution ◽  
Tourist Attractions ◽  
Sustainable Tourism Development ◽  
The Past ◽  
Plastic Bags ◽  
Plastic Wastes ◽  
Plastic Products

Plastic usage in tourism activities has increased significantly in Vietnam over the past decades, leading to the burden of plastic pollution and the threat to sustainable tourism development. The Vietnamese government has recognized the importance of plastic waste management in sustainable tourism. Laws and regulations on controlling pollution due to non-biodegradable plastic bags. Public education activities have been organized to encourage people replace plastic products with natural materials, reuse plastic bags and reduce plastic wastes. Many tourism businesses have found ways to limit plastic consumption, such as replacing disposal plastic products with eco-friendly products. Vietnamese tourism has taken the first steps in reducing plastic waste pollution in tourism activities. This article proposed some solutions to limit and restrain plastic wastes from tourism in Vietnam.

scholarly journals Design of Pyrolysis Reactor for Waste Plastic Recycling

2020 ◽  
Vol 5 (5) ◽  
pp. 92
Author(s):  
Wondwosen Bekele ◽  
Wassihun Amedie ◽  
Zelalem Salehudres
Keyword(s):  
Waste Plastic ◽  
Plastic Recycling ◽  
Waste Plastic Recycling ◽  
Pyrolysis Reactor

scholarly journals Recycling Marine Plastic into Clothing Apparel via Global Collaborations

2021 ◽  
Vol 9 (10) ◽  
pp. 1842-1851
Author(s):  
Akkshita Swain
Keyword(s):  
Supply Chain ◽  
United Nations ◽  
Food Chain ◽  
Plastic Waste ◽  
Aquatic Pollution ◽  
Fashion Industry ◽  
Plastic Pollution ◽  
Plastic Recycling ◽  
Truck Load ◽  
Do So

Abstract: According to the United Nations, aquatic pollution affects at least 800 species worldwide, with plastic responsible for up to 80% of the waste. Every minute, up to 13 million metric tonnes of plastic is expected to end up in the ocean, the equivalent of a trash or garbage truck load. Plastic is a design failure; it was never intended to end up in animals' stomachs or at the bottom of the food chain in humans. The fashion industry is a massive contributor to the plastic waste found in the oceans and so it becomes necessary for corporations to take sustainable steps in the direction of reducing Ocean Plastic Pollution. One of the ways to do so would be by recycling ocean plastic into clothes. Our study focuses on analysing global collaborations and suggesting a series of steps for recycling ocean plastic. Keywords: Marine Plastic, Recycling, Supply Chain, Plastic Pollution, Polymers

scholarly journals Fuzzy Based Spatial Risk Evaluation of Plastic Pollution: A Case Study of Anambra State of Nigeria

2021 ◽  
Author(s):  
Emmanuel Chibundo Chukwuma ◽  
Louis Chukwuemeka orakwe ◽  
Ejikeme Emmanuel Emenike ◽  
Chukwuma Chris Okonkwo
Keyword(s):  
State Government ◽  
Local Governments ◽  
Drainage Density ◽  
Plastic Waste ◽  
Mitigation Measures ◽  
Plastic Pollution ◽  
Terrestrial Environment ◽  
Anambra State ◽  
Spatial Risk ◽  
Plastic Wastes

Abstract Natural systems, human health, and artistic sensitivities are all threatened by plastic pollution in most developed and developing countries. Plastic has emerged as a major global threat with rivers serving as sink for transported plastics, emanating from the terrestrial environment as a result of human activities. Anambra State in Nigeria is arguably the business hub of the South-eastern part of Nigeria, with a massive output of plastic wastes daily from individuals, commercial activities and industries. Owing to an inefficient waste management system, plastic leakage into her drainage networks is a critical environmental challenge. The aim of this study is to geospatially model the vulnerability associated with the various plastic leakage factors to the environment. To achieve this aim, data on different thematic variables which include plastic waste density, slope, land-use, drainage density and distance to drainage network of the study area were modelled, Geographic Information Systems (GIS) was used to delineate the variables in order to obtain final risk map for the study area. The result of the study indicates that a total area very high risk is 1840.03 km2, this constitutes about 40.11% of the study area. Local Governments Areas (LGA) located in the southern part of the study area is more susceptible to plastic waste leakage, this could be linked to factors like high dense population and increasing rate of urbanization in the region. It is recommended that waste collection should be frequent, strategic and higher priority should be attached to the high risked area from this study. Anambra State Government also needs to work together with plastic recycling companies, for effective collection of plastic wastes in the areas classified as hotspots in plastic litter accumulation as one of the mitigation measures.

scholarly journals Workability and Strength Characteristics of Concrete by the Partial Reuse of Waste Plastic in Place of Natural Sand

2019 ◽  
Vol 8 (12S) ◽  
pp. 939-942
Keyword(s):  
Standard Technique ◽  
Plastic Waste ◽  
Strength Characteristics ◽  
Development Cost ◽  
Natural Sand ◽  
Waste Plastic ◽  
Plastic Wastes ◽  
New Material

In present the development cost as absence of sand is improving step by step so as to check this issue, sand is in part supplant in type of plastic wastes material. Plastic waste is reused in type of the generation of new material which might be utilized as discretionary part in concrete and is probably the most ideal ways for disposing of plastic waste. Additionally these procedures demonstrated to be profoundly practical than standard technique. The target of this thesis is to use plastic waste as a discretionary substitution (0%, 10%, 20%, 40% and 60 %) of natural sand and test it for various strength characteristics and supportability.

Chemical upcycling of polymers

2021 ◽  
Vol 379 (2209) ◽  
Author(s):  
Bernhard M. Stadler ◽  
Johannes G. de Vries
Keyword(s):  
Closed Loop ◽  
Plastic Waste ◽  
Advanced Materials ◽  
Production Volume ◽  
Theme Issue ◽  
Separation Processes ◽  
Waste Plastic ◽  
Fast Growing ◽  
Plastic Recycling ◽  
Waste Plastic Recycling

As the production volume of polymers increases, so does the amount of plastic waste. Plastic recycling is one of the concepts to address in this issue. Unfortunately, only a small fraction of plastic waste is recycled. Even with the development of polymers for closed loop recycling that can be in theory reprocessed infinitely the inherent dilemma is that because of collection, cleaning and separation processes the obtained materials simply are not cost competitive with virgin materials. Chemical upcycling, the conversion of polymers to higher valuable products, either polymeric or monomeric, could mitigate this issue. In the following article, we highlight recent examples in this young but fast-growing field. This article is part of the theme issue 'Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 2)'.

scholarly journals Upcycling plastic waste through empirical implementation of large-scale 3D printing

2021 ◽  
Author(s):  
◽  
Watcharawat Ritthisri
Keyword(s):  
3D Printing ◽  
Global Economy ◽  
Large Scale ◽  
Extrusion Process ◽  
Urban Environments ◽  
Plastic Waste ◽  
Waste Materials ◽  
Waste Plastic ◽  
Plastic Recycling ◽  
Plastic Products

<p>Plastic waste presents a real global challenge and a threat to health, environment and the global economy. While awareness of the devastating effects of plastic waste on the environment has increased, the production of plastic products is still on the rise. As a result, many countries do not prioritise waste plastic recycling or the export of plastic wastes to other countries for recycling. However, the products from recycled waste plastics are considered to be of low quality and uneconomical to produce on large scale, thus making individuals and corporations giving preference using plastics from virgin materials rather than producing products from recycled plastics. These is therefore a need to develop an effective process through the use of technology to upcycle plastic waste locally to produce products of higher value from waste plastic. The current research sought to investigate the potential of distributed upcycling to change the production and consumption of plastic products in future. To this end, the study sought to prepare high value design application for upcycling and investigated how they could be implemented through large-scale 3D printing in urban environments. To achieve this, the researcher collected plastic waste materials from Wellington in New Zealand to be used in the study experiments. The plastic waste materials were first cleaned, sorted and cut into small pieces using a granulator before being taken through thermal processes to dry them out and set the right temperatures to ensure consistency of the plastic waste extrusion before being taken through the extrusion process. 3D Printing was used to design and make various final products from the recycled plastic waste. Experimentation with different formulations of waste plastic led to production of a high-quality filament successfully achieving the study objectives. As such, upcycling plastic waste using 3D Printing technology provides a locally viable solution to making useful products in large scale as a model for future development.</p>

scholarly journals Recycling of waste plastics to liquid fuel mixture over composite zeolites catalysts

2021 ◽  
pp. 12-18
Author(s):  
Firuza Akhmetova ◽  
Yermek Aubakirov ◽  
Zheneta Tashmukhambetova ◽  
Larissa Sassykova ◽  
Huseyin Arbag ◽  
...  
Keyword(s):  
Natural Zeolite ◽  
Liquid Fuel ◽  
Motor Fuel ◽  
Fuel Mixture ◽  
Daily Basis ◽  
Plastic Waste ◽  
Chemical Recycling ◽  
High Quality ◽  
Waste Plastic ◽  
Liquid Products

Plastic waste production and consumption is increasing at an alarming rate with the increase of the human population, rapid economic growth, continuous urbanization, and changes in lifestyle. In addition, the short life span of plastic accelerates the production of plastic waste on a daily basis. Plastic waste recycling is carried out in different ways, but in most developing countries, open or landfill disposal is a common practice for plastic waste management. Plastic recycling into feedstocks, also known as chemical recycling, is encouraged all over the world. One such area is the thermal and catalytic thermal degradation of plastics into hydrocarbon fractions, which can be used as high-quality motor fuel after appropriate processing. Hydrocracking in the presence of a catalyst is a promising method of converting waste plastic materials to high quality liquid transportation fuels with decreased amounts of olefins and heteroatoms such as S, N, Cl, N, and O. The article deals with the study of hydrocracking of waste plastic into high quality liquid fuel on various catalysts based on natural zeolite deposits Taizhuzgen. The aim of the work is to determine the effect of new composite catalysts on the yield of liquid products by studying the specific surface and porous structure based on natural zeolite modified with Mо salt. It is established that the modification of natural zeolite with Mo affects the morphology of the catalyst, therefore, the obtained catalysts have different effects on the yield and composition of liquid fractions during the hydrogenation thermocatalytic transformation of hydrocarbons. The highest yield of liquid products (61.56%) was achieved using the 2% Mo/Taizhuzgen zeolite catalyst, which was chosen as optimal.

scholarly journals Plastic Waste Recycle for Industrial

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Muhammad Budi Haryono ◽  
Wikan Budi Utami
Keyword(s):  
Human Health ◽  
Review Paper ◽  
High Income ◽  
Plastic Waste ◽  
Plastic Pollution ◽  
Global Problem ◽  
Major Disease ◽  
Plastic Wastes

The high-income countries are leading to higher consumption of plastic, despite prominent contribution to the global problem of plastic pollution. The high quantities of plastic wastes are extremely threatening to harm the environment and inhabitants due to mismanagement such as ingested in the fish and also harmful to human health (cancer is a major disease) if such consuming a fish. This review paper explored a solution to treating plastic waste to improve the sustainability of the environment. The use of recycled plastic wastes as a component has been found to be the most beneficial as it can be used to replace all solid components.

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