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Construction · Energy · Fertiliser · Monitoring

Building a biodigester and recovering all organic matter.

UMOJA sizes and builds biodigesters from 4 to over 10 m³, trains users, provides maintenance and progressively connects sites to MotoBox™, BioCloud™ and PAYG Mobile Money.

The UMOJA system

One biodigester produces two useful resources.

Organic waste ferments without oxygen. The system supplies biogas for cooking and digestate that can be recovered as liquid organic fertiliser.

Organic feedstock being loaded into a UMOJA installation
WasteBiogas + digestate

Biodigester range

Six capacities, from households to agri-industry.

Final capacity is confirmed after assessing available feedstock, user numbers and daily demand. Times shown are cooking estimates, not a guarantee independent of feeding conditions.

01

UMOJA Starter

4 m³

Household of 2 to 4 people

Estimated cooking · 2–3 h
02

UMOJA Family

5 m³

Household of 4 to 6 people

Estimated cooking · 3–4 h
03

UMOJA Classic

6 m³

Family or small institution

Estimated cooking · 3–4 h
04

UMOJA Pro

8 m³

Restaurant, school or bakery

Estimated cooking · 4–5 h
05

UMOJA Industrial

10 m³

Hospital, farm or industrial activity

Estimated cooking · 5–6 h
06

UMOJA Agri+

> 10 m³

Agri-industry, custom sizing on quotation

Estimated cooking · Quoted

Complete installation

From site assessment to technical support.

  1. 01

    Assess

    Available waste, cooking demand, terrain and access.

  2. 02

    Size

    Capacity selection and site-specific design.

  3. 03

    Build

    Civil works, piping, purification and cooking equipment.

  4. 04

    Commission

    Testing, flame checks and user training.

  5. 05

    Support

    Periodic maintenance, diagnosis and technical response.

Complete installation

Site assessment, sizing, construction, connection, testing, commissioning and user training.

Maintenance

Periodic inspections, preventive maintenance, diagnosis, repair and recommissioning by UMOJA’s technical team.

Training

Training for technicians, operators, households, institutions and communities in system feeding and operation.

Digestate and Bio-Boost

Digestate recovery and transformation into liquid organic fertiliser for agricultural uses.

MotoBox™ and BioCloud™

Functional prototype monitoring pH and pressure, with data centralisation and technical alerts under development.

PAYG Mobile Money

Progressive payment after a deposit, instalment tracking and control of useful gas distribution: a service still being deployed.

UMOJA Smart Resilience

The biodigester connected to monitoring and progressive payment.

A functional prototype is installed at UMOJA’s Goma site. pH and pressure monitoring is being tested; extended alerts, GSM and PAYG are still being deployed.

Understand Smart Resilience

MotoBox™

Field unit: sensors, local collection and measurement transmission.

Pilot prototype

BioCloud™

Interface designed to bring together sites, history and technical alerts.

In development

PAYG Mobile Money

Deposit, instalments and future secure control of useful gas distribution.

Being deployed

UMOJA’s Goma site

From waste to cooking, then from digestate to the trial garden.

The demonstration site uses biogas for an ecological mini-bakery, an income-generating activity. Digestate supports Bio-Boost production for soil amendment and observation in an on-site trial garden.

Bread production at UMOJA’s ecological mini-bakery in Goma

Organic waste

Sorted and regularly fed into the site’s biodigesters.

Cooking biogas

Used for production in the ecological mini-bakery.

Income-generating activity

Biogas cooking supports marketable local production.

Bio-Boost

Liquid digestate is recovered to amend agricultural soils.

Watch the process video

UMOJA Bio-Fertilisant

Bio-Boost: liquid digestate returns to crops.

After biogas production, digested material can be recovered as an organic resource for soils. UMOJA currently offers Bio-Boost in liquid form.

Illustration of digestate collection and application to crops

Market gardening

Amaranth, cabbage, lettuce, tomatoes and other vegetable crops, with dosage to be specified in the technical sheet.

Perennial crops

Soil application intended for bananas, coffee and other perennial crops.

Liquid format

The currently confirmed form is liquid. Packaging volumes and delivery terms remain subject to quotation.

Agricultural references

Local crops to document future trials.

These images show crops supplied by UMOJA. They are not presented as a before-and-after yield comparison.

Vegetable crop supplied by UMOJA
Tomato plants in a local plot
Mixed crops in a local plot

In what form?

The liquid form is confirmed. Commercial container sizes will be specified later.

What dosage should be used?

Crop-specific recommendations will only be published after the technical sheet is validated.

How can I order?

Contact UMOJA to confirm availability, required quantity, location and delivery terms.

Completed interventions

28 installations recorded between 2012 and 2026.

Chargement de la carte…

Mapped register

28

installations in the 2012–2026 portfolio

6

confirmed intervention areas across North and South Kivu.

Field case files

Three programmes, three operating contexts.

Goma · Nord-Kivu · RDC

Can your site produce biogas?