Closing the Loop: Innovative Strategies for Circular Economy and Sustainable Waste Management

Year : 2025 | Volume : 12 | Issue : 03 | Page : 123 139
    By

    Samuel Omojola Ejiko,

  • Tunji John Erinle,

  • Ramoni Olawale Abiodun Oyeniyi,

  1. Chief Lecturer, Mechanical Engineering Department, The Federal Polytechnic,, Ado-Ekiti, Nigeria
  2. Lecturer I, Mechanical Engineering Department, The Federal Polytechnic,, Ado-Ekiti, Nigeria
  3. Prinicipal Lecturer, Department of Mechanical Engineering, Osun State College of Technology, Esa-Oke, Nigeria

Abstract

Africa’s growing waste crisis, especially in rapidly expanding cities across Nigeria, has made it increasingly clear that traditional “take–make–dispose” systems can no longer support sustainable development. This paper explores how shifting to a circular economy (CE) can transform waste from a persistent challenge into a valuable resource. Instead of seeing waste as an endpoint, the circular economy model encourages designing products for longer lifespans, rethinking consumption patterns, and recovering materials so they can circulate back into production. Using instances from within and outside Africa, the study highlights how practical and scalable solutions are already emerging. Initiatives such as Wecyclers in Lagos, ColdHubs’ solar-powered cold rooms, Rwanda’s plastic bag ban, South Africa’s extended producer responsibility (EPR) schemes, and eco-industrial parks demonstrate how innovation, policy, and community engagement can work together to close material loops. These successes show that CE practices are not only feasible but capable of creating jobs, reducing pollution, and supporting more resilient local economies. At the same time, the study acknowledges the significant challenges Nigeria faces, including low waste collection rates, poorly managed landfills, the marginalization of informal waste workers, and fragmented governance. To bridge these gaps, the study argues for stronger policy alignment, better financing mechanisms, partnerships between government and private actors, and the integration of digital technologies such as the Internet of Things (IoT), blockchain, and Artificial Intelligence (AI) to improve transparency and efficiency. The findings suggest that embracing circular economy principles offers Nigeria and Africa as a whole an opportunity to build cleaner cities, healthier communities, and a more sustainable, inclusive future.

Keywords: Circular Economy; Digital Technologies; Environmental Sustainability; Resource Recovery; Sustainable Waste Management.

[This article belongs to Journal of Water Pollution & Purification Research ]

How to cite this article:
Samuel Omojola Ejiko, Tunji John Erinle, Ramoni Olawale Abiodun Oyeniyi. Closing the Loop: Innovative Strategies for Circular Economy and Sustainable Waste Management. Journal of Water Pollution & Purification Research. 2025; 12(03):123-139.
How to cite this URL:
Samuel Omojola Ejiko, Tunji John Erinle, Ramoni Olawale Abiodun Oyeniyi. Closing the Loop: Innovative Strategies for Circular Economy and Sustainable Waste Management. Journal of Water Pollution & Purification Research. 2025; 12(03):123-139. Available from: https://journals.stmjournals.com/jowppr/article=2025/view=235450


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Regular Issue Subscription Original Research
Volume 12
Issue 03
Received 01/12/2025
Accepted 31/12/2025
Published 31/12/2025
Publication Time 30 Days
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