期刊
RESOURCES CONSERVATION AND RECYCLING
卷 173, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.resconrec.2021.105745
关键词
Landfill waste; Waste recycling; Circular economy; Global waste generation; Waste in construction; Future of waste
资金
- Capacity Building Grant at the University of Southern Queensland [1007576]
The paper critically reviews the issues of tyre, plastic, and glass landfill waste globally. It emphasizes the inadequate recycling rates and the environmental problems caused by waste landfilling. The importance of finding new strategies for waste utilization is highlighted, along with a summary of global and country-specific production, recycling, and landfill rates.
The world is moving towards a circular economy that focuses on reducing wastes and keeping materials in use for the longest time possible. This paper critically reviewed three of the largest volume of landfill waste materials (tyres, plastics and glass) that are becoming a major concern for many countries. At present, crumb rubbers (from tyres) and glass sands (from crushed waste glass) are being used in concrete and road constructions while plastics are often used in manufacturing civil structures. However, only 10% tyres, 19.5% plastics and 21% glass are currently recycled globally. The massive volume of remaining unused wastes goes to landfill creating environmental problems. Therefore, finding new strategies of utilising these landfill wastes is vital. The global and country specific production, recycling and landfilling rates of these waste are summarised to understand the present situation of global waste crisis. Future strategies for improved waste management, potential investment and research directions are highlighted. New options for recycling wastes tyres, plastics and glass in construction are also presented to provide practical and economical solutions to extract maximum value and ensure their continued use in a closed loop system.
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