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From Waste to Wonder: How Black Soldier Flies Are Changing the Story in Kenya

Everyday in Kenya, over 22,000 tonnes of waste silently pile up.

It gathers in alleys, clogs drainage channels, and attracts pests, but it rarely makes the headlines. Why? Because it disappears faster than plastic. Because it’s just “organic.”

But here’s a better question: what if waste could do more?

What if the food scraps left from last night’s meal could feed chickens, grow vegetables and clean our streets?

At Project Mila, we asked that question and found the answer in a humble insect, the Black Soldier Fly (BSF).

 

A Tiny Insect with Giant Potential

 

Unlike most flies, the BSF doesn’t bite, sting, or spread diseases. In fact, it does the opposite.

Its larvae devour organic waste and give us two life-changing gifts in return:

  • Protein rich animal feed that supports local farmers.
  • Organic fertilizer that restores tired soils and grows food.

 

It’s nature’s way of closing the loop, a circular solution rooted in biology, community, and hope.

 

Illustration of the Black Soldier Fly (BSF) lifecycle showing eggs, larva, pupa, and adult fly, alongside composting bin and frass fertilizer applied to plants in Kenya.
The Black Soldier Fly (BSF) lifecycle: transforming organic waste into nutrient-rich frass that boosts local agriculture and supports circular farming systems.

 

 

Why Waste Is Everyone’s Problem

 

Across Mombasa, from Bamburi to Kadzandani, organic waste piles up daily. It fills the vacant plots and sits in the sun, turning from scraps to sickness in just hours. While policies are written and plastic bans enforced, many communities wait for action they can actually see.

 

Youth group in Mombasa planting trees as part of a local environmental clean-up drive organized by Project Mila.
Local youth cleaning up waste — empowering communities through hands-on climate action.

 

That’s where we come in, helping communities lead climate actions through circular models like those outlined in Nairobi’s Circular Economy Baseline Study.

At Mila, we believe climate solutions shouldn’t just live in reports, they should live on our streets. In your backyard garden. On your dinner table.

 

Turning Rot Into Results: The Mila Model

 

Here’s how we turn waste into something wonderful:

  1. We collect food scraps from homes, schools, and markets, waste that would otherwise rot in the open.
  2. We feed it to BSF larvae, raised in small rearing stations, often built and managed by local youth.
  3. We harvest frass (organic fertilizer) and protein-rich larvae, which return to the community.

 

This isn’t just theory, its visible change.

We watched as once barren corners of Mshomoroni turned into thriving green patches, nourished with frass. Students at Pwani Junior Academy grow vegetables in soil they understand, not bought in a packet but made from waste they used to walk past.

 

Project Mila team member standing in a newly transformed green space in Mshomoroni, Mombasa, after converting a former waste site using Black Soldier Fly frass fertilizer.
Project Mila’s team celebrating the transformation of a once-neglected waste site into a thriving green space using BSF-derived organic fertilizer.

 

Youth Led, Community-Grown

 

Real climate action begins at home. In classrooms. On idle land.

Our approach is simple: empower youth with practical tools, not just climate talk. That’s why our school programs aren’t just about lessons, they’re about touching soil, turning compost, and planting seeds.

Amina, one of our BSF farmers, now trains others in Kadzandani. Her unit diverts 80kg of waste per week. That 80kg won’t attract flies, cause diseases, or end up in the ocean.

When a 12 year old teaches her family how to sort waste…

When a local chicken farmer switches to BSF feed and cuts costs…

When an abandoned plot becomes a vegetable patch…

That’s what we call a revolution.

 

Students in a Mombasa classroom participating in an environmental education workshop on composting and sustainability.
Students learning about composting, sustainability, and Black Soldier Fly farming through Project Mila’s school workshops.

 

Impact That Grows with You

 

We’re not just fighting waste. We’re feeding chickens, fertilizing crops and building dignity.

  • Circular economy in action? Check.
  • SDGs? We hit four: Zero Hunger, Climate Action, Decent Work, and Responsible Consumption.
  • Scalable? Absolutely, our model works in cities, villages, and schools alike.

 

And it’s all rooted in the belief that the smallest changes make the biggest impact when led by the community.

 

This is Where You Come In

 

We need more frass, more youth units, more hands in the soil.

Your support means:

  1. Training new BSF farmers
  2. Expanding into 10 new neighborhoods
  3. Launching more school gardens with local compost.
  4. Donate, Partner, or simply Share our story.

 

Let the world know that in Kenya, we’re not waiting. We’re doing.

Project Mila team member engaging with local residents during a community outreach drive in Mombasa to promote sustainable waste management and Black Soldier Fly farming.
Project Mila team member leading a community outreach session, empowering residents with knowledge on sustainable waste solutions and BSF farming in Mombasa.

Climate change isn’t just about rising seas and melting glaciers. In Mombasa, it’s the waste in our backyards, the price of chicken feed, and the quality of our soil. That’s why our solutions must live in everyday life.

– Project Mila Team

 

This is what climate action looks like when it’s built with compost, community, and care.

And this is just the beginning.

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About Mila​ Blog

Our blog shares stories, insights and practical knowledge about environmental education, community sustainability, and youth empowerment in Mombasa and beyond.