The treatment process uses viruses known as bacteriophages to feed on and remove bacteria from faecal sludge. Common fungi, such as Basidiomycetes, Rhizopus, Aspergillus niger, and Aspergillus flavus, are then introduced to the remaining solid waste, which functions as a growth medium to cultivate mycelia, the root-like structure of the fungi. Toilet paper in the sludge functions as a carbon source for mycelial growth. After 72 to 120 hours, 10 litres of sludge can produce 500 grams of mycelia for harvest. The ‘Myco’ in the innovation’s name denotes mycelia-based material.
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The Myco-Substitutes technology, which is in pre-pilot phase, produces between one and five balls of yarn a day. This is dependent on factors including the fungal species used, available space, and the availability of giant milkweed.
(Lead)
Department of Environment, Water and Waste Engineering, University for Development Studies
Ghanaian environmental technologist Abubakari Zarouk Imoro led the creation of Myco-Substitutes in response to the health risks of informal toilets and dumping of faecal sludge.
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