From Cyclone Freddy's Wreckage, a Smarter Way to Handle Waste
Malawi's smallholder farmers are being squeezed from every direction — erratic rainfall, exhausted soils, and fertiliser prices most can't afford. I didn't set out to solve any of that. I was just standing in the aftermath of a cyclone, looking at a clogged stream, and thinking: this shouldn't all just be waste.
The Problem
When Tropical Cyclone Freddy tore through Malawi's Southern Region in March 2023 — the longest-lasting tropical cyclone ever recorded — it left more than destruction. It left debris. Organic matter, plastics, and metals piled into streams and streets across communities like Ndirande in Blantyre, worsening flooding and creating a public health crisis on top of an already catastrophic disaster.
More than 2.3 million people were affected. Over 600 lives were lost. And in the middle of all of it, I kept noticing the same thing: the organic waste being swept through those streams had potential. It was just mixed with everything else, which made it useless — or worse, harmful.
The gap wasn't just about waste collection. It was about waste intelligence. Nobody was separating materials at the point of collection, and so nothing useful was being recovered.
The Approach
The framing that unlocked the solution was simple: what if the bin itself did the sorting?
Instead of relying on communities to pre-sort waste — which rarely happens consistently — we could build a smart bin that separates organic matter from plastics and metals automatically, then processes the organic fraction into compost on-site.
That meant the design challenge wasn't just mechanical. It required thinking about where to deploy these bins (flood-prone, waste-dense areas), how to make the system affordable and maintainable locally, and how the compost output could reach farmers who actually needed it. The project connected waste management, climate resilience, and food security in one pipeline.
The Build
I led the coding and data components of Smarter Compotech, working alongside teammates who brought design creativity and agricultural knowledge. Together, we developed a prototype smart bin capable of separating organic waste from plastics and metals, transforming the organic fraction into nutrient-rich compost.
The pilot was planned for Blantyre's most flood- and waste-prone areas — starting with communities like Ndirande, where the need is visible and immediate. UNICEF Malawi supported the project through its social innovation programme at the Malawi University of Science and Technology (MUST), which has now put 120 youth innovators through its programme, 58% of them young women. The programme didn't just offer funding — it offered mentorship, testing platforms, and honest feedback on whether an idea could actually scale.
The feature was published by UNICEF Malawi and picked up by Nation Online, which I didn't expect. It made the work feel real in a different way.
What I Learned
The most honest thing I can say is that the hardest part wasn't the technology — it was resisting the urge to over-engineer. A smart bin that works in Ndirande has to be something a community can maintain without a supply chain of specialised parts. Simplicity is a design constraint, not a compromise.
The second thing: working at the intersection of climate, data, and agriculture means your user isn't another developer. It's a farmer who needs cheaper inputs, or a city planner trying to manage flood risk. That audience sharpens your thinking in ways that purely technical work doesn't.
Climate problems rarely have single-domain solutions — and Smarter Compotech is still early, but it's the kind of work I want to keep doing.