In Limpopo, South Africa, microalgae were added to wastewater ponds to treat sewage from 1,560 homes. Without chemicals or electricity, the process—phycoremediation—cut ammonia by 99%, phosphate by 83%, and nitrogen by 73%, offering a low‑cost, eco‑friendly solution for rural sanitation.
(c) Jonothan Taylor/Unsplash CC0
(c) Jonothan Taylor/Unsplash CC0

Mwani mdogo wasafisha maji machafu kwa njia rafiki kwa mazingira

ECOWATCH

Huko Limpopo, Afrika Kusini, mwani mdogo umetumika kusafisha maji machafu bila kemikali wala umeme. Teknolojia hii hupunguza amonia kwa 99%, fosfeti kwa 83%, na nitrojeni kwa 73%, ikitoa suluhisho la bei nafuu kwa usafi vijijini.

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