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

Mikroalgen reinigen Abwasser ohne Chemie und Strom

ECOWATCH

Im südafrikanischen Limpopo wurden Mikroalgen eingesetzt, um das Abwasser von 1.560 Haushalten zu reinigen. Das Verfahren reduzierte ohne Chemikalien oder Strom den Ammoniakgehalt um 99 %, den Phosphatgehalt um 83 % und den Stickstoffgehalt um 73 %.

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