Ma keʻano maʻamau,ʻo ka holoʻana o ka wai mai ka haʻahaʻa haʻahaʻa a hiki i ke kiʻekiʻe o ka hoʻokuʻuʻana, aʻo ka reverse osmosis membrane e hoʻoikaika i ka ikaika ma kaʻaoʻao kiʻekiʻe e hoʻihoʻi i ka wai i kekahiʻaoʻao o ka membrane.Hiki i ka reverse osmosis membrane ke hoʻopaʻa i nā mea ʻoi aku ka nui ma mua o 0.0001μm (ʻo ia hoʻi 0.1nm) (me ka bacteria a me nā maʻi maʻi a me nā mea kūlohelohe me ke kaumaha molekula ʻoi aku ma mua o 100) a ʻo ia ka huahana hoʻokaʻawale membrane hoʻomaʻemaʻe loa ma ka mākeke.Hoʻohālikelike ʻia me nā mea kānana ʻē aʻe, ʻoi aku ka maʻemaʻe o ka wai e kahe ana ma ka membrane osmosis.Eia kekahi, hoʻopuka nā membrane osmosis hoʻohuli i ka wai ʻino.ʻAʻole pono ka membrane i hoʻohua ʻole i ka wai ʻino he membrane reverse osmosis.
Nanofiltration membrane (NF) mea kānana
ʻO nā membrane nanofiltration ka hapa nui o nā membrane, me nā koina maikaʻi ʻole ma ka ʻili, hiki ke hoʻopaʻa i nā cations me ʻelua mau valences i loko o ka wai a mālama i nā ion monovalent (e like me nā ion sodium a me nā ion potassium).No laila, mālama nā membrane nanofiltration i kekahi mau minela i loko o ka wai.ʻAno mea.
Ma waena o nā mea hoʻohaumia metala kaumaha maʻamau, aia ka arsenic i loko o ka wai ma ke ʻano he trivalent arsenic ion a me pentavalent arsenic ions;Loaʻa ka chromium ma ke ʻano o nā ion trivalent a hexavalent ma ke ʻano.No laila hiki i ka nanofiltration membrane ke kānana i ka hapa nui o nā metala kaumaha.Hiki iā ia ke wehe i kahi ʻāpana o ka calcium a me ka magnesium, no laila he hopena i ka hoʻomaʻamaʻa ʻana i ka wai paʻakikī.
I ka manawa like, hiki i nā membrane nanofiltration ke hōʻemi i nā mea kūlohelohe i ka wai a me nā carcinogens e like me trihalomethanes i hana ʻia i ka wā chlorination a me ka disinfection o ka wai inu.
ʻO ka maʻi virus liʻiliʻi loa i ʻike ʻia he anawaena o 18nm-22nm (ʻikepili mai Wikipedia).Ke hoʻohālikelike ʻia me ka nui o ka pore o nā membranes nanofiltration o 1-2nm, ʻano nui nā bacteria a me nā maʻi virus, no laila hiki i nā membrane nanofiltration ke hana maikaʻi ʻO ka wehe ʻana i nā maʻi bacteria a me nā maʻi ʻaʻole paʻakikī ke noʻonoʻo.
ʻO ke kumu hana o ka membrane nanofiltration he hapa like ia me ka membrane reverse osmosis.ʻOi aku ka haʻahaʻa o ke kaomi ʻana ma mua o ka membrane reverse osmosis, no laila e hoʻohua mai i ka wai ʻino ma mua o ka membrane reverse osmosis.
Mea kānana Ultrafiltration membrane (UF).
ʻO ka nui o ka pore o ka membrane ultrafiltration he 0.01μm (10nm).ʻO ka nui o nā mea hoʻomaʻemaʻe wai e hoʻokūpaʻa i nā mea hoʻomaʻemaʻe wai e hoʻohana wale ana i nā membrane ultrafiltration e mālama i nā minela i loko o ka wai a ʻaʻole hana i ka wai ʻino.ʻAe, pololei kēlā.Akā ʻaʻole hiki i nā membrane ultrafiltration ke kānana i nā metala kaumaha.Hiki iā ia ke kānana pono i ka bacteria (ʻo ka bacteria liʻiliʻi loa i ʻike ʻia he 0.2μm (200nm) ka lōʻihi) a me kekahi mau maʻi maʻi nui.
I kekahi mau wahi, he wai paʻakikī ka wai, ʻo ia hoʻi, ka wai me ka nui o ka calcium a me ka magnesium.He ʻono kēia ʻano wai.Inā makemake ʻoe e hoʻololi iā ia i wai palupalu, ʻaʻole hiki i kahi mea hoʻomaʻemaʻe wai e hoʻohana ana i kēia membrane wale nō ke hoʻokō i ka koi.
kānana seramika
Hiki i ka mea kānana ceramic ke kānana i ka sediment, debris, a me ka bacteria ma ka liʻiliʻi o ka pore o ka mea ceramic.He ʻano microfiltration membrane (MF).ʻO nā ion kālā i hoʻopili ʻia i ka ceramic he hopena sterilizing.E pili ana i ka pololei kānana ʻana o ka mea kānana ceramic, ʻo ka ʻelua-mana membrane ceramic filter element me ka pololei kānana kiʻekiʻe loa i ka honua he awelika pore nui o 0.1μm.Wahi a kēia maʻamau, ʻoiai hiki i ka mea kānana ceramic ke kānana i kekahi bacteria, ʻaʻole hiki ke kānana i nā maʻi he nui.
ʻAʻole hiki i ka Ceramic ponoʻī ke wehe i nā mea haumia kemika, akā ʻo ka mea kānana keramika i hoʻohui ʻia me ka carbon activated kiʻekiʻe e hiki ke hōʻemi i nā mea haumia organik a me nā mea hoʻohaumia metala, a loaʻa iā ia ka hana o ka wehe ʻana i ke koena chlorine a me ka decoloring.Eia nō naʻe, pono e hoʻololi pinepine ʻia kēia ʻano kānana ceramic composite, no ka mea ʻoiai he maʻalahi ka hoʻomaʻemaʻe ʻana o ka ʻili seramika, e ālai ʻia ke kalapona i hoʻopiha ʻia i loko o ka ceramic ma hope o ka manawa hoʻohana.Inā ʻoe e noʻonoʻo e pili ana i ia, e ʻike ʻoe he liʻiliʻi ka hopena adsorption a i ʻole Up.
ʻĀpana kānana resin
Hoʻohana mau ʻia nā mea kānana hoʻololi resin e hoʻopalupalu i ka wai paʻakikī.ʻAʻole hiki ke kānana i nā metala kaumaha.
Ka manawa hoʻouna: Nov-12-2020