Techniques of recycling end-of-life wind turbine blades in the pavement industry: A literature review

Rapid global industrialization has increased the amounts of greenhouse gas emissions leading to global warming and severe weather conditions. To lower such emissions, several countries are swiftly seeking sustainable and low-carbon energy alternatives. As a green energy source, wind power has gained...

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Main Authors: Shuwen Zhang, Noah Kirumira
Format: Article
Language:English
Published: AIMS Press 2024-09-01
Series:Clean Technologies and Recycling
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Online Access:https://www.aimspress.com/article/doi/10.3934/ctr.2024005
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author Shuwen Zhang
Noah Kirumira
author_facet Shuwen Zhang
Noah Kirumira
author_sort Shuwen Zhang
collection DOAJ
description Rapid global industrialization has increased the amounts of greenhouse gas emissions leading to global warming and severe weather conditions. To lower such emissions, several countries are swiftly seeking sustainable and low-carbon energy alternatives. As a green energy source, wind power has gained recent popularity due to its low cost and lower carbon footprint; but with a short blade life span, the industry faces a blade waste issue. Wind turbine blade recyclability is challenging due to factors such as blade sheer size, material complexity, low economic feasibility, and a lack of suitable recycling policies; yet, many blades are still being constructed and others are being decommissioned. This paper aims to discuss different wind turbine blade recyclability routes under the pavement sector. Wind turbine blades are made of composite materials, and based on literature data, it was found that recycled fibers can be extracted from the composites using methods such as pyrolysis, solvolysis, and mechanical processing; of these methods, solvolysis provides cleaner and better fibers. The recycled fibers, when incorporated in both asphalt and concrete, improved their mechanical properties; nevertheless, recycling of fibers from carbon fiber-reinforced polymers (CFRPs) was more economical than glass fiber-reinforced polymers (GFRPs). Waste wind turbine blades can take other routes, such as processing them into waste wind turbine aggregates, roadside bicycle shades, bridge girders, and road acoustic barriers.
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spelling doaj-art-ca74dc6222554df09f988c44a21059002025-01-23T07:56:42ZengAIMS PressClean Technologies and Recycling2770-45802024-09-01418910710.3934/ctr.2024005Techniques of recycling end-of-life wind turbine blades in the pavement industry: A literature reviewShuwen Zhang0Noah Kirumira1Department of Civil Engineering, Zhengzhou University, 100 Kexue Blvd, Zhongyuan District, Zhengzhou, Henan, China, 450001Department of Civil Engineering, Zhengzhou University, 100 Kexue Blvd, Zhongyuan District, Zhengzhou, Henan, China, 450001Rapid global industrialization has increased the amounts of greenhouse gas emissions leading to global warming and severe weather conditions. To lower such emissions, several countries are swiftly seeking sustainable and low-carbon energy alternatives. As a green energy source, wind power has gained recent popularity due to its low cost and lower carbon footprint; but with a short blade life span, the industry faces a blade waste issue. Wind turbine blade recyclability is challenging due to factors such as blade sheer size, material complexity, low economic feasibility, and a lack of suitable recycling policies; yet, many blades are still being constructed and others are being decommissioned. This paper aims to discuss different wind turbine blade recyclability routes under the pavement sector. Wind turbine blades are made of composite materials, and based on literature data, it was found that recycled fibers can be extracted from the composites using methods such as pyrolysis, solvolysis, and mechanical processing; of these methods, solvolysis provides cleaner and better fibers. The recycled fibers, when incorporated in both asphalt and concrete, improved their mechanical properties; nevertheless, recycling of fibers from carbon fiber-reinforced polymers (CFRPs) was more economical than glass fiber-reinforced polymers (GFRPs). Waste wind turbine blades can take other routes, such as processing them into waste wind turbine aggregates, roadside bicycle shades, bridge girders, and road acoustic barriers.https://www.aimspress.com/article/doi/10.3934/ctr.2024005wind turbine blades wasteglass fiber compositescarbon fiber compositessolvolysispyrolysisasphaltconcretepavements
spellingShingle Shuwen Zhang
Noah Kirumira
Techniques of recycling end-of-life wind turbine blades in the pavement industry: A literature review
Clean Technologies and Recycling
wind turbine blades waste
glass fiber composites
carbon fiber composites
solvolysis
pyrolysis
asphalt
concrete
pavements
title Techniques of recycling end-of-life wind turbine blades in the pavement industry: A literature review
title_full Techniques of recycling end-of-life wind turbine blades in the pavement industry: A literature review
title_fullStr Techniques of recycling end-of-life wind turbine blades in the pavement industry: A literature review
title_full_unstemmed Techniques of recycling end-of-life wind turbine blades in the pavement industry: A literature review
title_short Techniques of recycling end-of-life wind turbine blades in the pavement industry: A literature review
title_sort techniques of recycling end of life wind turbine blades in the pavement industry a literature review
topic wind turbine blades waste
glass fiber composites
carbon fiber composites
solvolysis
pyrolysis
asphalt
concrete
pavements
url https://www.aimspress.com/article/doi/10.3934/ctr.2024005
work_keys_str_mv AT shuwenzhang techniquesofrecyclingendoflifewindturbinebladesinthepavementindustryaliteraturereview
AT noahkirumira techniquesofrecyclingendoflifewindturbinebladesinthepavementindustryaliteraturereview