A research project led by the University of Bologna is introducing vertical hydroponic growing systems to informal settlements around Dandora, Nairobi's largest open-air landfill, as part of a circular urban agriculture initiative developed with local community organisations.
The project, coordinated by Professor Francesco Orsini of Bologna's Department of Agricultural and Food Sciences, combines vertical hydroponic vegetable production with black soldier fly farming and aquaculture. Organic waste from the landfill feeds black soldier fly larvae, which are converted into protein feed for livestock and fish, while the spent substrate becomes compost for the hydroponic growing units.
Community organisation Chamie Organics, co-founded by University of Nairobi student Victor Charo Otieno, developed simplified hydroponic systems specifically adapted to the space constraints and soil scarcity of the Dandora area. "Space is limited, and access to good-quality soil is scarce," says Otieno. "That is why we have focused on growing vegetables in vertical hydroponic systems."
The initiative grew out of an international workshop organised by the Growth4Change network, which connects community organisations active in the Dandora area. A second workshop involving around 150 students took place earlier this month, with lecturers from the Jomo Kenyatta University of Agriculture and Technology also participating.
Source: University of Bologna
