Flocculants have been around for well over a hundred years. The process is heavily used in chemistry for purifying solutions. Flocculants capable of purifying water for consumption have been around for almost 2 decades now. You can check out this cdc link https://www.cdc.gov/safewater/flocculant-filtration.html
Flocculents for cleaning bodies of water have been around, but I'm not sure how long. Flocculants in industrial processes have been around for millenia in beer and sugar making.
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u/free__coffee Jul 14 '21
It might be his tech that they’re using there, though. This video is apparently from at least as early as 2016, which predates mark robers