ʻO ka Nanofiltration (NF) kahi ʻenehana hoʻokaʻawale wai-membrane i loaʻa nā waiwai he nui me ka reverse osmosis (RO). ʻAʻole like me RO, ka mea e hōʻole kokoke i nā mea hoʻoheheʻe a pau, hōʻole ʻo NF i nā ion multivalent e like me ka calcium me ka hōʻole ʻana i nā ion monovalent e like me ka chloride.
Ma HID membraanes hāʻawi mākou i kahi laina o nā membrane nanofiltration (NF) i kūkulu ʻia e hāʻawi i ka flux maikaʻi loa a me ka hōʻole ʻana a hiki ke hoʻololi ʻia e hoʻokō i nā pono kikoʻī o nā noi kaʻina hana. ʻO kā mākou mau membrane nanofiltration, i loaʻa i loko o nā topologies membrane spiral-wound a me flat sheet membrane, hiki ke hōʻole i nā paʻakai multivalent a me nā molela nui aʻe me ka hōʻole ʻana i nā pae hoʻololi o nā paʻakai monovalent.
Hōʻike ʻia ke ʻano o ka hoʻokaʻawale ʻana o ka nanofiltration e nā membranes composite, thin-film composite me nā nui pore mai ka 0.1 a i ka 10nm. Hiki ke hana nā membrane NF, ʻaʻole like me ka reverse osmosis (RO), i nā kaomi haʻahaʻa a ʻae i ka hōʻole ʻana i ka solute koho ma muli o ka nui a me ka uku.
ʻO kā mākou mau membrane nanofiltration, me ka nui o ka pore mai ka 0.1 a hiki i ka 10nm, e ʻae i ka wai a me kekahi mau paʻakai e kahe i loko o ka mālama ʻana i nā ion multivalent, nā molekala kaumaha haʻahaʻa, nā carbohydrates, nā protein, a me nā mea ola ʻē aʻe. HID's NFS, NFX, NFW, a me NFG nanofiltration membrane huahana ua hōʻike 'ia e hāʻawi maikaʻi fouling kū'ē, kiʻekiʻe koho, a me ka kino lōʻihi koi 'ia no ka hoʻohana 'ana i loko o ka laulā huahelu o ka hana hoʻokaʻawale kaʻina hana ma hope o makahiki o ka noiʻi a me ka ulu ana.
Maikaʻi ka MgSO4 a me ka hōʻole ʻana i ka lactose ma NFS, NFX, a me NFW, ʻoiai ʻo NFG e hoʻopau i nā monosaccharides mai nā oligosaccharides. Hiki i nā membrane Nanofiltration ke hoʻemi nui i ka paʻakikī, nitrates, sulfates, tannins, turbidity, color, TDS, a me nā pae paʻakai maʻalahi i nā kahawai wai hānai.
ʻO nā membrane nanofiltration kahi mea hou loa e hāʻawi ai i ka koho koho ion ʻoi aku ka maikaʻi ma mua o nā membrane reverse osmosis, e hōʻole ana i nā ʻano ion a pau i kahi kahawai hānai. ʻO kēia hiʻohiʻona ʻokoʻa e hiki ai ke maʻalahi i ka hoʻomohala ʻana i ke kaʻina hana hoʻokaʻawale, hiki ke loaʻa ka hopena koʻikoʻi i ka hana a me ka hoʻokele waiwai, ʻoi loa i nā noi ʻoihana. Eia kekahi mau laʻana o ka hoʻohana ʻana i kā mākou ʻenehana membrane NF:
- Lactose a me ka whey demineralization i ka hana waiu
- ʻO ka hoʻopaʻa ʻana o ka lactose a me ka whey
- ʻO ka wehe ʻana i nā mea kūlohelohe maoli i ka wai a me ka hoʻomaʻemaʻe wai
- Hoemi i ka paakiki ma ka hoomaemae wai
- Ka hoʻoneʻe ʻana o ka Sulfate mai ka wai kai a me nā hana kemika
- ʻO ka wehe ʻana i nā kahawai kaʻina hana ma nā ʻoihana like ʻole
Ka manawa hoʻouna: Iune-12-2022