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

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.

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.

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

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

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.
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.
- L'ONG OPBS transforme les déchets biodégradables en richesses au quartier NgandaGreen Impact TV · 3 August 2026
- Un modèle innovant de gestion des déchets séduit les experts en durabilitéGreen Impact TV · 7 August 2026
- OPBS récolte ses premiers asticots expérimentauxGreen Impact TV · 15 August 2026
- À Nganda, les déchets se transforment en engrais et font pousser des légumesGreen Impact TV · 14 October 2026
- À la décharge de Nganda, scientifiques et gestionnaires misent sur l'économie circulaireGreen Impact TV · 23 October 2026
- Écoles Vertes : l'initiative de l'UNESCO en faveur de l'éducation environnementaleGreen Impact TV · 31 July 2026
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.

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

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

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

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

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