Author: Onyekachi Nwafor (CEO, KatexPower). 

Topic: Waste management. 

Tool type: Teaching. 

Relevant disciplines: Environmental; Civil; Systems engineering. 

Keywords: Sustainability; Environmental justice; Water and sanitation; Community engagement; Urban planning; Waste management; Nigeria; Sweden; AHEP; Higher education. 
Sustainability competency: Systems thinking; Integrated problem-solving competency; Strategic competency.

AHEP mapping: This resource addresses two of the themes from the UK’s Accreditation of Higher Education Programmes fourth edition (AHEP4): The Engineer and Society (acknowledging that engineering activity can have a significant societal impact) and Engineering Practice (the practical application of engineering concepts, tools and professional skills). To map this resource to AHEP outcomes specific to a programme under these themes, access AHEP 4 here and navigate to pages 30-31 and 35-37.  

Related SDGs: SDG 6 (Clean Water and Sanitation); SDG 11 (Sustainable Cities and Communities); SDG 13 (Climate Action).  
Reimagined Degree Map Intervention: More real-world complexity; Active pedagogies and mindset development; Cross-disciplinarity.

Educational level: Beginner. 


Learning and teaching notes: 

This case study juxtaposes the waste management strategies of two cities: Stockholm, Sweden, renowned for its advanced recycling and waste-to-energy initiatives, and Lagos, Nigeria, a megacity grappling with rapid urbanisation and growing waste challenges. The contrast and comparison aim to illuminate the diverse complexities, unique solutions, and ethical considerations underlying their respective journeys towards sustainable waste management. 

This case is presented in parts. If desired, a teacher can use Part one in isolation, but Parts two and three develop and complicate the concepts presented in Part one to provide for additional learning. The case study allows teachers the option to stop at multiple points for questions and/or activities, as desired.   


Learners have the opportunity to: 

Teachers have the opportunity to: 


Learning and teaching resources: 


Government publications: 

Journal articles: 


Part one: 

You are a renowned environmental engineer and urban planner, specialising in sustainable waste management systems. The Commissioner of Environment for Lagos invites you to analyse the city’s waste challenges and develop a comprehensive, adaptable roadmap towards a sustainable waste management future. Your mandate involves: 


Optional STOP for questions and activities: 


Part two: 

As you delve deeper, you recognise the multifaceted challenges Lagos faces. While Stockholm boasts advanced technologies and high recycling rates, its solutions may not directly translate to Lagos’s context. Limited infrastructure, informal waste sectors, and diverse cultural practices must be carefully considered. Your role evolves from simply analysing technicalities and policies to devising a holistic strategy. This strategy must not only champion environmental sustainability but also champion social equity, respecting the unique socio-economic and cultural nuances of each urban setting. You must design a system that: 


Optional STOP for questions and activities: 


Adaptability for diverse contexts: 


Discussion prompts: 


Part three: 

While implementing your strategy, you encounter enthusiasm from some sectors but also resistance from others, particularly informal waste workers and industries whose livelihoods may be impacted. Balancing immediate socio-economic concerns with long-term environmental benefits becomes crucial. 


Optional STOP for questions and activities: 


This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.  

Any views, thoughts, and opinions expressed herein are solely that of the author(s) and do not necessarily reflect the views, opinions, policies, or position of the Engineering Professors’ Council or the Toolkit sponsors and supporters. 
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