The lettuce that cleans water!
Jean-Pierre Bayala, in Burkina Faso, has found a simple, effective and beneficial way to clean waste water from local handicraft workshops using the water lettuce (Pistia stratiotes). Simple, because it only needs four tanks. Effective, because the cleansed water can be used for irrigation after three weeks. And beneficial, because the fast-growing water lettuce can be used for feeding domestic animals and for compost. First pour the waste water, from which fats and oils have been removed, into a tank. After three days, switch the water to a second tank and cover it with water lettuces. A week later, switch it to a third tank and cover with new water lettuces, and after a week, put it in the fourth tank. Then the water can be used in nurseries and for aquaculture. It is not clean enough for drinking, and it should not be used on kitchen gardens. Jean-Pierre Balaya Rue Langeveld, 113A1180 Brussels, Belgium
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| Format: | News Item biblioteca |
| Language: | English |
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Technical Centre for Agricultural and Rural Cooperation
1999
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| Online Access: | https://hdl.handle.net/10568/48560 https://hdl.handle.net/10568/99585 |
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