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.

中文翻译：

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可持续生活过滤膜

随着对清洁水的需求增加，对有效的可持续水处理系统的需求也越来越大。我们使用在冲泡康普茶时形成的细菌和酵母共生培养物 (SCOBY) 作为活水过滤膜 (LFM)。LFM 用作超滤膜，渗透率为 135 ± 25 L m ^–2 h ^–1 bar ^–1以及 90% 的 30 nm 纳米粒子排斥率。因为它们含有产生纤维素纤维的活微生物，所以 LFM 的表面在穿刺或切口后会愈合。穿刺或切口后，膜渗透性在穿刺后快速增加后，在生长溶液中 10 天后恢复到原始通量的 110-250%。此外，LFM 可以使用现成的材料制造，从而提高膜生产的可及性。