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ʻO ka hoʻolauna ʻana i nā mea hana wai Ultrafiltration
ʻO ka Ultra-filtration (UF) kahi hana hoʻokaʻawale membrane e hoʻomaʻemaʻe a hoʻokaʻawale i nā hopena. Hoʻohana ka anti-pollution PVDF ultrafiltration membrane i ka polymer material polyvinylidene fluoride ma ke ʻano he kiʻi ʻoniʻoni nui, ʻo ka PVDF membrane ponoʻī he ikaika oxidation kū'ē, ma hope o ka hoʻololi ʻana o nā mea kūikawā a he hydrophilicity maikaʻi, i ke kaʻina hana o ka membrane ma o ka hoʻolālā micropore ʻepekema a me ka micropore structure control, hiki i ka nui o ka micropore pore i ka pae ultrafiltration. Loaʻa i kēia ʻano huahana membrane nā pono o nā pores like ʻole, ka pololei kānana kiʻekiʻe, ke komo ʻana o ka wai kiʻekiʻe ma kēlā me kēia ʻāpana, ka pale ʻana o ka oxidation a me ka ikaika tensile kiʻekiʻe.