Sustainable Living Filtration Membranes

Sustainable Living Filtration Membranes

As demand for clean water increases, there is a growing need for effective sustainable water treatment systems. We used the symbiotic culture of bacteria and yeast (SCOBY) that forms while brewing kombucha tea as a living water filtration membrane (LFM). The LFMs function as ultrafiltration membrane...

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Veröffentlicht in:Environmental science & technology letters 2020-03, Vol.7 (3), p.213-218
Hauptverfasser: Eggensperger, Christina G, Giagnorio, Mattia, Holland, Marcus C, Dobosz, Kerianne M, Schiffman, Jessica D, Tiraferri, Alberto, Zodrow, Katherine R
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container_end_page 218
container_issue 3
container_start_page 213
container_title Environmental science & technology letters
container_volume 7
creator Eggensperger, Christina G
Giagnorio, Mattia
Holland, Marcus C
Dobosz, Kerianne M
Schiffman, Jessica D
Tiraferri, Alberto
Zodrow, Katherine R
description As demand for clean water increases, there is a growing need for effective sustainable water treatment systems. We used the symbiotic culture of bacteria and yeast (SCOBY) that forms while brewing kombucha tea as a living water filtration membrane (LFM). The LFMs function as ultrafiltration membranes with a permeability of 135 ± 25 L m–2 h–1 bar–1 and a 90% rejection of 30 nm nanoparticles. Because they contain living microorganisms that produce cellulose fibers, the surface of an LFM heals after a puncture or incision. Following punctures or incisions, membrane permeability, after a rapid increase postpuncture, returns to 110–250% of the original flux after 10 days in a growth solution. Additionally, LFMs may be manufactured using readily available materials, increasing membrane production accessibility.
doi_str_mv 10.1021/acs.estlett.0c00019
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title Sustainable Living Filtration Membranes
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