Collection contract
You receiveScheduled pick-up, weighing, consignment note, certificate, each batch traced in Pi.
You gainA compliant site, with demonstrated take-back.
Activity 6
Collection and Recycling
Reduce electrical and electronic waste through traceable collection, and turn it locally into raw materials.
ForBusinesses, banks, hotels, schools, municipalities, solar operators, donors
The electrical and electronic waste resource is immense: approximately 77,000 t per year in Cameroon, with less than 1% formally collected in sub-Saharan Africa. A used battery stored on site is a fire risk and a liability: its treatment must be demonstrable.
Our services
What you obtain
Municipal agreement
You receiveBins installed, collection campaigns in street waste, regular pick-ups, residents informed.
You gainA visible public service, hazardous waste removed from urban areas.
Circularity audit
You receiveFleet inventory, compliance plan, reporting.
You gainA precise baseline assessment and a compliance pathway.
Why us
- 426 kg handed over on 18 June 2026 with Solidarité Technologique
- Black mass stays in Africa
- A process derived from our doctoral research
426 kgdelivered on 18 June 2026
98.2%XRF carbon, mixed black mass
99.90%carbon, anode graphite
358 mAh/ghalf-cell lithiation, Birmingham
Our national ambition
Reduce the electrical and electronic waste stockpile
The resource is immense and almost none of it is collected. We intend to actively solve this problem, throughout the country.
- Formal collectionOur bins, organised by location: offices, shops, schools, public administrations.
- Informal collectionCollection campaigns in street waste.
- StorageStorage points in all 10 regions.
- Local processingWith our partners, waste transformed on site into raw materials.
Already done
What we have already collected, dismantled and processed
426 kg handed over on 18 June 2026.
The cells and batteries received
Dismantling
Black mass and what becomes of it
With Solidarité Technologique
Solidarité Technologique already collects and processes electrical and electronic waste in Cameroon. With it, our bins rely on a network, a workshop, trucks and 426 kg handed over on 18 June 2026.
Our process
From black mass to purified graphite
1. Homogenise and split
Riffle splitter, rotary splitter: every test starts from a sample representative of the lot.
2. Grind
Ceramic jar and balls: controlled particle liberation, before separation.
3. Screen
Ro-Tap sieve shaker, wet screening at 38 µm: copper and aluminium remain on the sieve.
4. Separate by density: Falcon
The Falcon L40 UF concentrator separates particles at 300 G, without reagents.
5. Separate by magnetism: WHIMS
At 1.5 T, the WHIMS retains the cathode material; the graphite passes through.
6. Purify: leaching and filtration
Selective leaching, vacuum filtration, washing: what remains is purified graphite.
Research by Y. T. Chegang Kwebou, McGill University (Mineral Processing Group), with the University of Birmingham
FIAB
Our FIABs: the containerised plant
Factory-in-a-Box: containers designed to be placed where the batteries are. Black mass is produced, separated and purified on site, in Africa.
- Black mass productionReceiving, dismantling, sorting, grinding, drying, screening.
- Physical separationScreening at 38 µm, Falcon, WHIMS: reagent-free, designed with McGill.
- Selective leachingLeaching, filtration, purified graphite: the only reagent in the process.
Our containers in 3D, step by step
In 3D
Our results
What our process delivers
74.6 → 98.2% carbone by XRF, mixed black mass99.90% carbon, anode graphite−94.1% copper, anode graphite358 mAh/g half-cell lithiation, Birmingham
Research by Y. T. Chegang Kwebou, McGill University (Mineral Processing Group), with the University of Birmingham
Before, after
The same material, transformed
Drag to compare.
Initial black mass, then purified graphite
EDS map of the black mass, then EDS map of the purified graphite
Research by Y. T. Chegang Kwebou, McGill University (Mineral Processing Group), with the University of Birmingham
Our collection bins
Our 3-bin collection station
The prototype we manufacture: cells, batteries and power banks, e-cigarettes and small devices, each in its own bin, each with its own code. 103 × 48 × 150 cm.
A set of bins per location
Offices and banksHotels and restaurantsSchools and universitiesEvents
A prefabricated bin for each location
Compact
30 to 50 kg · Ø 40 × 107 cmFor: Small offices, schools, administrations, pharmacies, laboratories
What goes inCells, phones, small appliances
Intermediate
100 to 200 kg · Ø 65 × 160 cmFor: Shopping centres, hospitals, hotels, banks, service stations, universities
What goes inCells, batteries, UPS units, computers
High capacity
300 to 600 kg · Ø 110 × 183 cmFor: Industry, telecoms, mines, warehouses, garages, solar installers
What goes inInverter and telecom tower batteries, equipment batteries, modules
Industrial and special kits
1 to 3 tonnes and above · Ø 180 × 197 cmFor: Military, large telecom networks, solar power plants, industrial storage
What goes inFleet batteries, storage, complete packs
Designed for safety
- Welded galvanised steel: no plastic, it burns
- Non-return flap vent and flame arrester stack
- Locked door, inner container exchanged on every round
- Pi code on every bin
Logistics, from installation to proof
- InstallationBin installed, location recorded, your team trained.
- FillingYour users drop off, the bin stays closed and locked.
- Full binYour team reports the full bin in Pi: the collection round is scheduled.
- RoundContainer exchanged, weighed on site, signed delivery note.
- DepositSorting, secure storage, batch created in Pi.
- Recycling and proofCertificate issued, balance per site, the black mass stays in Africa.
Scenarios by location
Projection images.
Our resources
How we do it
Collect everywhere
Stations for offices, banks, hotels, restaurants and schools, with collection on request. 426 kg were handed over on 18 June 2026 with Solidarité Technologique, our collection partner.
Dismantle safely
Discharge, opening, sorting: the assembly read in reverse. Batteries still in good health go to second life.
Separating black mass
Cathode on one side, graphite on the other, through physical separation (Falcon, WHIMS, flotation) before any chemistry: a process developed from our doctoral research.
Purify
Leaching and filtration complete the purification: in the laboratory, the graphite rises from 74.6% to 98.2% carbon by XRF, and is then tested as an anode at the University of Birmingham.
Technical data sheetHeated glass reactor, thermocouple, stirring
- H₂SO₄ or H₃PO₄ 2 M, 100 g/L, 80 ± 2 °C, 120 min, 400 rpm
- Washing with deionised water to below 50 µS/cm, drying at 60 °C, 12 h
- Mixed black mass, XRF: 98.2% C (H₂SO₄), 96.1% C (H₃PO₄); combustion: 86.5% graphitic carbon
- Anode graphite only: 1.5 M H₃PO₄, 99.90 ± 0.01% C, copper reduced by 94.1%
In 3D
With you
How to work with us
- Let's discuss your needsA call, a site visit or a sample.
- We offerScope, schedule and price, in writing.
- We install and we trainOur systems on your site, your teams trained to use them.
- We stay by your sideFollow-up, support and maintenance, for as long as you wish.
Short term
A one-off pickup, with weighing and waste manifest.
Long term
Collection stations installed, regular pickups, trained staff.
With
