Our work

In the field with communities

Waste recovery, environmental education, cleanup days: here are the activities carried out by OPBS.

Flagship project · since August 2026

Waste recovery in Nganda

At a waste site in the Nganda neighbourhood of Kintambo, OPBS sorts household waste and turns the biodegradable part into useful resources: compost, maggots and vegetables. The site is run with the Green Coop cooperative.

A worker in a safety vest prepares bags of compost
Preparing compost · Photo: Green Impact TV
1
3 August 2026

Project launch

Biodegradable waste recycling starts at a site at the junction of Aigles, Vautours and Éperviers avenues. Two streams: producing maggots to feed poultry and fish, and making compost.

Fanny Salmon speaks with the OPBS team at the Nganda site
Fanny Salmon (right) visiting the Nganda site · Photo: Green Impact TV
2
7 August 2026

Visit from a sustainability expert

Fanny Salmon, deputy director general of Climate & Sustainability Expertise, visits the sorting centre and praises a model worth copying in every neighbourhood. A local small business collects waste from households and employs eight people. Street and neighbourhood leaders are trained in sorting.

Poultry eating maggots from a basin
Poultry feeding trials · Photo: Green Impact TV
3
15 August 2026

First maggots harvested

First harvest of experimental maggots, to be used in broiler chicken feeding trials as an alternative protein source.

Soil-free amaranth crop at the Nganda site
Soil-free amaranth crop · Photo: Green Impact TV
4
October 2026

Vegetables from compost

Compost made on site feeds a soil-free crop of amaranth, spinach, okra and tomatoes.

Three men talking at the Nganda site during the scientific visit
Scientific visit to the site · Photo: Green Impact TV
5
23 October 2026

Scientific visit from UNIKIN

Professor Mabu Masiala Bode, of the Faculty of Agronomic and Environmental Sciences at the University of Kinshasa, visits the site and proposes a collaboration on a pilot waste recovery project.

July 2026

Green Schools Programme

In late July 2026, OPBS coordinator Alain Bill Venga spoke at the closing of the trainer course for UNESCO's Green Schools Programme at Écoles Mont Amba. These trainers support science clubs in pilot schools on environmental education, green spaces and waste management.

20–21 September 2024

World Cleanup Day

For World Cleanup Day, the Kasa-Vubu municipality and OPBS, in collaboration with UNESCO, organized two days of activities at Lycée Toyokana.

Participants seated under a shelter during a workshop
Workshop on plastic waste

Plastic waste cleanup

Participants learned about sorting and collecting plastic waste in the Kasa-Vubu municipality before the fieldwork.

Team members in front of the event banner
The team in front of the event banner

Sanitation of Avenue Birmanie

The OPBS team and its partners, the Kasa-Vubu municipality and UNESCO, came together to clean up Avenue Birmanie.

A speaker addresses the audience
Speaking during the workshops

Discussion and awareness workshops

Speakers led workshops on why a clean environment matters and shared good practices.

Group photo of participants
Group photo of participants

A collective effort

The two days brought together many participants around the event banner.

OPBS awareness session

Awareness sessions

OPBS regularly holds meetings with families and young people around its four areas: entrepreneurship, health, farming and education.

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