- August 9, 2026
- Clean Water & Environment
The Future of Waste: Finding Opportunities in Waste Management
Don Bosco Oysterbay turns wastewater into biogas and compost, and organic waste into affordable cooking briquettes for neighbouring communities.
Consciousness of the environment is a core principle of Don Bosco's interventions in Tanzania. Don Bosco Oysterbay, one of the largest Don Bosco institutions in the country, accommodates roughly 1,600 people a year — and designed a biodigester system to manage the resulting wastewater sustainably.
Through controlled anaerobic digestion of organic matter, the biodigester produces biogas, recycles nutrients, and generates usable by-products such as organic compost and water for irrigation — reducing methane emissions and eliminating the cost and risk of external waste disposal.
The institution has also built a briquette production project, turning solid waste from its workshops into charcoal briquettes — a cleaner cooking fuel sold at an affordable price to neighbouring communities, particularly benefiting women and children who cook with fuelwood. The facility currently produces 25kg of briquettes a day, with plans to scale up production to meet growing demand.
