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Four Ways to Handle Biowaste — Where Each One Actually Wins
Most conversations I have about biowaste end the same way: "we already looked at biogas" — or "we just compost it" — or "the city incinerates it." Then the conversation stops.
01 · The four routes
Each route has a window
It shouldn't. Each of those works, but each only works in a specific window.
Biogas wins when you have >25 t/day of guaranteed feedstock for 15+ years, a buyer for the energy, and a subsidy regime stable enough to underwrite a $1–7M plant deployed over 24–36 months. Below that volume, the math rarely closes.
Composting wins when you have fibrous green waste, plenty of land, no revenue requirement, and you're fine waiting 8–16 weeks. Cheap, simple, well-understood. The output is worth $30–70/ton — which is the ceiling.
Incineration wins at city scale with mixed unsegregated waste and high enough tipping fees to carry the CAPEX. Not a choice most waste generators get to make.
And then the worst: dumping to landfill. It is still there, but getting difficult to justify.
02 · The gap
The gap in the middle
That leaves a real gap: 5–25 t/day of distributed organic streams — food processors, supermarkets, agri-residues, peri-urban municipalities, hotels. Too small for biogas to pay back. Too valuable to landfill. No subsidy to wait for.
03 · Where BSF fits
Where BSF processing fits
This is where BSF-based processing fits. Lower CAPEX, deploys in weeks, output value covers OPEX. And — this is the part most people miss — the revenue side is flexible: gate fees, protein feed, insect oil, frass fertilizer. Different cases monetize different combinations. A poultry-feed market changes the model. A free waste stream changes the model. Local soy prices change the model.
04 · The evaluation
Evaluate every case on its own
Which is also why every case has to be evaluated on its own. The wrong substrate, the wrong scale, wrong location, or the wrong monetization mix kills the business case faster than any technology choice. We've spent 8 years building the framework to do that evaluation — across 50+ customers in 30+ countries — because the failure rate when people skip it is brutal.
If you handle biowaste — what's the one stream you've never found a good home for?
Keep exploring
Related topics and pages
- You have a biowaste problem. Could it actually become profitable? — the 3-step evaluation behind whether a stream can pay
- Top 10 most viable BSF business cases for 2025-2026 — the business cases these distributed streams could feed
- Articles library — the article collection this post belongs to
Read next
- You have a biowaste problem. Could it actually become profitable? — the 3-step evaluation for whether a biowaste stream can pay
- BSF business case evaluation — the process that separates working facilities from the headlines — the wider frame this route comparison sits inside
- BSF profit is made on the buy, not the sell — why substrate cost and waste-stream sourcing decide the outcome
- BSF Metrics #1 — Bioconversion Ratio — the substrate-specific ratio behind every waste-to-output calculation
Next step
Bring us your biowaste stream
If you handle biowaste, a structured evaluation is the fastest way to see which treatment route fits a specific stream.