Infectious healthcare waste must be treated within a legal deadline — 48 hours, and 24 in the Philippine hot season. Every operator counts kilos. Nobody counts the hours. We built the software that does — and it halves the collection rounds.
Measured over 365 simulated days on a fixed 36-hour collection cadence. Weight tells you nothing about compliance. The age of each kilo, from production to treatment, tells you everything — and no operator tracks it today.
A truck that arrives creates the very backlog it will have to clear. The collection threshold follows from that, and it is not a fixed clock:
The treatment contract obliges the operator to issue a pull-out slip at every collection, a certificate of treatment, and a monthly report before the 10th. Three of our agent's eight tools produce exactly those three documents. We do not sell intelligence on top — we produce the obligation.
Senegal's decree gives 48 hours. The Philippine health ministry manual gives 48 in the cool season and 24 in the hot season, unless a refrigerated store is available.
It is parameterised by the limit, not wired to 48. That is the cleanest demonstration of its design we have produced, and we were not looking for it.
| Cold room that lifts the 24-hour constraint | 4–11 m³ |
| Capex, sized on the 541 kg backlog measured at the bench | €2,000–9,400 |
| Saved per year in collection rounds avoided | €1,655–15,858 |
| Payback | 0.1–5.7 year |
A regulatory constraint became a second piece of hardware sold with the module. The 0.1 to 5.7 year spread comes from one documentary unknown: the manual uses "hot season" three times without ever defining it. One line of enquiry to the ministry closes it by a factor of three.
Food waste 315 kg
Plastics 176 kg
Healthcare waste 160 kg
Sealed digesters: bacteria break down the organics
Shredder and heated press: plastic sheets
Microwave at 110 °C: no longer infectious
Cooking gas 25–63 m³
Digestate, the fertiliser
Sheets and inert residue
Nothing is burned. There is no smoke. The gas feeds 10 to 25 households that cooked on charcoal, replacing 27 to 69 tonnes of charcoal a year at the national biogas programme's own conversion rate. Seven people work on site, at three euro cents per kilo treated.
The digestate from container A
Water 20–40 m³ per cycle
3.7 kWh/day, solar
Soil, air and light sensors
Catalogue greenhouse: €10.94/m²
Tomatoes 720–1,080 kg/yr
Worth €2,023–3,035
Payback 0.4–0.7 year
We long wrote that the greenhouse does not pay for the site. That was the wrong statement: it compared the smallest possible unit with the largest possible site. Capex and revenue are both proportional to area, so it pays back in four to eight months at any size. What bounds its size is the digestate mass and the local market — neither is measured yet, and we say so. A trial in Niger showed a badly tuned greenhouse divides the harvest by five, which is precisely why it needs piloting.
| Price awarded by a Philippine public hospital, 2026 contract | €0.151 / kg |
| Our cost, 314 t/year site — all items measured | €0.144–0.181 / kg |
| Same service in Greece, for scale | €0.622–2.103 / kg |
| CO₂ avoided per site, national inventory method | 133–296 t/yr |
| Sites needed for Senegal's own waste-sector target | 788–2,128 |
Cost of ownership includes amortisation over seven years, seven staff at the charged minimum wage, consumables, electricity at the published regulated tariff, maintenance benchmarked on a public tender, and magnetron tubes at the manufacturer's rated life.
Every figure on this page comes from an open source or from a program that was run: the Philippine Department of Health waste management manual, an awarded public contract, the Senegalese biomedical waste decree and national plan, the electricity regulator's tariff schedule, IPCC 2006 inventory methods, and 365 simulated days of a site under five scenarios.