Reconditioning and reuse of specific components: Some components, such as gearboxes and generators, may be reconditioned and reused in other applications.
At present, the recycling techniques are mechanical, thermal and chemical recycling, which have their own benefits and drawbacks. For instance,
# Wind Turbine Recycling and Disposal. Over the past 40 years, the wind industry has grown into the largest source of renewable electricity generation in the United States, powering millions of American homes and businesses every day. In eight states, wind energy is responsible for over a quarter of the electricity produced, while Iowa leads the nation with over 60% of the electricity generated in the state coming from wind turbines. The need for a recycling process is growing, and new innovations are arising that could help the industry reach its goals. Currently, up to 94 percent of a wind turbine's parts can be recycled. However, the rotor blades are made of composite materials, mostly consisting of fiberglass and carbon fiber, that are particularly difficult to recycle. REGEN Fiber is a recycling company that uses a mechanical process to break down turbine blades. Cement co-processing involves mechanical shredding of the blade and feeding the shredded pieces into a cement kiln.
Innovative partnerships like Re-Wind9, a collaboration between the Georgia Institute of Technology and Queen’s University Belfast, are deploying design and logistical concepts in the field, such as prototyping methods to reuse the decommissioned blades in buildings, infrastructure, landscape and public art.10 Recycle Today, wind turbine blades are recycled into raw material and fuel for cement production, through a partnership between GE, Veolia North America, and other companies, generating jobs and reducing the emissions of cement production.11 Wind Turbine Disposal and Recycling Strategies American Clean Power Association | cleanpower.org American Clean Power Association | cleanpower.org Although in the past, blades and other composite materials from wind turbines have been landfilled because of limited options in recycling technology and infrastructure to process and separate the reusable materials, many original equipment manufacturers (OEMs), research institutes and universities, and the DOE’s national laboratories are solving the technological challenges of turbine blade recycling.
This is due to problems in the flue gas cleaning steps caused by the small fractions of glass fiber and pollutant byproducts.8 Other thermal processing methods include pyrolysis and fluidized bed com-bustion (FBC) and are aimed at recovering both the reinforcement fibers and the resin in the composite but can also recover combustion heat through a waste-heat recovery system.26 The pyrolysis process decomposes the organic material into low molecular weight substances by applying heat in the absence of oxygen under controlled conditions.27 The degraded polymer (in the form of smaller molecules such as oil, gas, or solid char) can be used as an energy source in other processes, while the glass fiber is left intact for recovery.26,27 FBC is a similar method that consists of mixing fuel and air in a specific proportion for obtaining combustion.28 Both processes recover glass and carbon fibers with some strength degradation that can be used for applications with lower mechanical demands, such as thermal resistance insulation material, although with limited economic viability.26–28 The FBC for glass fiber composites seems to need a minimum production capacity of 10,000 tons/year to be economically feasible.26 The pyr-olysis process for carbon FRP seems to better retain the mechanical properties of the fiber and produce less fiber strength degradation compared with the FBC, 6 NEW SOLUTIONS: A Journal of Environmental and Occupational Health Policy 0(0) but it also produces environmentally hazardous off-gases and residues, including carbon monoxide,b carbon dioxide, and methane.29 A combined pyrolysis-gasification process for wind turbine blades developed in Denmark has not been commercialized because it is not cost-effective.26 One key issue is that all these thermal processing techniques for wind turbine blades would also require fragmentation of the material into smaller pieces through mechanical processing before being fed into the reactors, increasing energy consumption and carbon dioxide emissions.
This Is Why We Don't Recycle Wind Turbine Blades Engineering with Rosie 122000 subscribers 4157 likes 80354 views 30 Jan 2024 Have you ever wondered how green wind energy really is, especially when you see those vast piles of wind turbine blades dumped in landfills? Social media posts with photos of wind turbine blades in landfill have raised this question, casting doubts on the sustainability of wind power. Is it actually horrible for the environment? Today, we'll examine why recycling wind turbine blades is such a challenge, focusing on the materials and manufacturing methods involved. Then, we'll scrutinize the current recycling methods and discuss what needs to change for blades to be effectively recycled. We'll also evaluate the efforts of wind turbine manufacturers and composite material suppliers towards this goal. If you would like to help develop the Engineering with Rosie channel, you could consider joining the Patreon community, where there is a chat community (and Patreon-only Discord server) about topics covered in the videos and suggestions for future videos and production quality improvements. https://www.patreon.com/engineeringwithrosie Or for a one-off contribution you can support by buying a coffee ☕️ here — https://www.buymeacoffee.com/engwithrosie Follow us for more short videos: https://www.instagram.com/engwithrosie/ https://www.tiktok.com/@engineeringwithrosie Bookmarks: 00:00 Intro 00:41 Wind turbine waste in context 02:12 Wind turbine blade structural design 05:09 Thermoplastics vs thermosets 06:24 Get 20% of Everything Electric Australia tickets 07:24 Repurposing wind turbine blades 08:06 Shredding 08:26 Cement co-processing 09:53 Thermoplastic wind turbine blades 10:57 Advanced recycling methods 13:42 Energy use and CO2 emissions from recycling 17:08 Outro Sources: For data, images & graphs https://www.bloomberg.com/news/features/2020-02-05/wind-turbine-blades-can-t-be-recycled-so-they-re-piling-up-in-landfills?leadSource=uverify%20wall https://www.nrel.gov/news/program/2023/new-prize-to-propel-wind-turbine-materials-recycling.html https://www.pbsnc.org/blogs/science/how-much-wind-does-a-wind-turbine-need/#:~:text=Most%20of%20what%20you%20would,prevent%20damage%20to%20the%20blades https://energynews.us/2023/12/21/spirit-of-giving-is-central-to-cleveland-area-companys-blades-to-benches-business/ https://blog.undeerc.org/2021/03/10/separating-wind-turbine-blades-for-reuse-recycling-and-repurposing/ https://www.goldwind.com/en/news/focus-article/?id=737300515733524480 https://www.regenfiber.com/about/pressrelease-2023-01-12 https://weatherguardwind.com/regen-fiber/ https://ir.tpicomposites.com/websites/tpicomposites/English/2120/us-press-release.html?airportNewsID=56036c4d-f25f-415b-9cd8-39570fc14a44 https://energywatch.com/EnergyNews/Cleantech/article16632440.ece?utm_campaign=Energy[…]tm_content=2023-11-24&utm_medium=email&utm_source=energywatch https://www.windtech-international.com/product-news/decomblades-breakthrough-in-recycling-wind-turbine-blades https://decomblades.dk/index.php/2023/04/20/632/ https://www.voxelmatters.com/goldwind-recycles-wind-turbine-blades-into-3d-printing-material/ https://www.lmwindpower.com/en/stories-and-press/stories/news-from-lm-places/lm-wind-p[…]ls-second-recyclable-wind-turbine-blade-under-zebra-project https://www.project-cetec.dk/uk/ Journals and Scientific Papers https://www.mdpi.com/1996-1073/16/22/7624 https://www.mdpi.com/2313-4321/4/2/24 https://api.repository.cam.ac.uk/server/api/core/bitstreams/5d6c2c41-5166-47f2-8961-49d2afc23eff/content https://www.sciencedirect.com/science/article/abs/pii/S0956053X23002726 The Engineering with Rosie team is: Rosemary Barnes: Presenter, producer, writer Javi Diez: Editor https://www.linkedin.com/in/javierdiezsuarez/ Fatini Nur: Research and production assistant https://www.linkedin.com/in/fatinin 781 comments
A **.gov** website belongs to an official government organization in the United States. # Wind Turbine Recycling. The U.S. Department of Energy’s (DOE) Integrated Energy Systems Office (IESO) is working with researchers across industry, academia, and national laboratories to create reuse and recycling for wind energy. Extending the life cycle, reducing waste, and enhancing the recycling of wind turbine materials are important strategies to promote and reduce the environmental impact of wind energy systems. * Working with DOE’s National Laboratory of the Rockies (NLR) and Oak Ridge National Laboratory (ORNL) to develop novel techniques for wind turbine generator design and manufacturing to reduce the amount of material needed to achieve the same level of performance. * In July 2023, IESO launched the Wind Turbine Materials Recycling Prize, a $5.1 million competition funded by the Infrastructure and Jobs Act that will help the United States develop a cost-effective, recycling industry for two types of materials used in wind turbines: fiber-reinforced composites and rare earth elements.
1 1015 18th Street NW, Suite 803, Washington, DC 20036 T: (202) 640-1060 F: (202) 331-3254 www.astswmo.org Fact Sheet: Wind Turbine Blades The Compliance Monitoring and Enforcement (CME) Task Force within the ASTSWMO Hazardous Waste Subcommittee and the Sustainable Materials Management (SMM) Task Force within the ASTSWMO Materials Management Subcommittee collaborated to produce a series of three fact sheets on emerging wastes from renewable energy sources: lithium-ion batteries with a focus on electric vehicle batteries; solar panels; and wind turbine blades. The views expressed in this document are those of the ASTSWMO CME and SMM Task Forces and its members and have not been formally endorsed by the ASTSWMO Board of Directors. As more wind turbines are being installed throughout the U.S., States that have had wind turbines, such as Nebraska, New York, and Wyoming, have begun examining end-of-life concerns surrounding turbine blade recycling and disposal. ASTSWMO CME and SMM Task Forces Fact Sheet: Wind Turbines Blades, November 2022 2 This fact sheet is intended to provide an overview of the potential environmental concerns presented by turbine blade disposal, and a summary of federal regulation and recycling opportunities currently available.