1. Fa'asalalauga fa'amama fa'ama'i: o le malosi autu o le tau-fa'amama lelei
O fa'asalalauga fa'amama fa'ama'i e sili ona fa'aaogaina o fa'asalalauga fa'amama, lea e fa'amama fa'amama vai e ala ile adsorption fa'aletino ma fa'alavelave. O ituaiga masani e aofia ai:
1). Sand Quartz: lapopoa 0.5-1.2mm, malosi malosi ma alkali tetee, tau maualalo, e masani ona faʻaaogaina mo vai inu vai ma togafitiga otaota (silasila i le "Industrial Water Treatment Technology Manual").
2). Kaponi fa'agaoioia: vaevaeina i le koale ma le atigi niu, ma le porosity e o'o atu i le 500-1500m²/g (punaoa fa'amatalaga: US Environmental Protection Agency EPA), e mafai ona fa'afefeteina mea fa'aola ma u'amea mamafa, talafeagai mo vai fa'amamaina ma le fa'amamaina o le ea.
3). Anthracite: maualalo le mafiafia (1.4-1.6g/cm³), tu'ufa'atasia ma le quartz oneone e fa'aleleia atili ai le fa'amama lelei, e masani ona fa'aoga i tane faamama fa'apalua.
O le fa'aletonu o fa'asalalauga fa'amama fa'atosina e faigofie ona fa'apipi'i ma mana'omia le fufuluina masani, ma le umi o le ola e tusa ma le 3-5 tausaga.
2. Fiber mea faamama: le filifiliga o le lelei ma lelei filtration
O mea fa'amama alava e faia i mea fa'afeso'ota'i fa'atasi ma le sa'o lelei o le fa'amama. O ituaiga sui o:
1). Polypropylene alava: pala-tete'e, e mafai ona faia i le PP cotton elemene faamama, pore lapopoa 1-10μm, faaaoga mo le muai faamamaina o vai fale.
2). Alava tioata: maualuga le vevela (I lalo ifo po o le tutusa i le 280 tikeri), e masani ona faʻaaogaina i falemaʻi otaota kesi togafitiga, e pei o le eletise desulfurization system.
3). Alava Ceramic: tu'ufa'atasia ma uiga fa'apitoa ma alava, malosi malosi tete'e, talafeagai mo viscosity maualuga filtration vai i le alamanuia vaila'au.
O le le lelei o mea fa'amama alava e maualalo le malosi, e faigofie ona malepe pe a uma-fa'aoga umi, ma e mana'omia ona sui i taimi uma.
3. Membrane fa'amama mea ma mea o lo'o tula'i mai: fa'aoga fa'atekonolosi
1). Membrane faamama mea:
- Microfiltration membrane (0.1-10μm): aveese siama ma mea o lo'o taofia, e pei o le fa'ai'uga o le fa'amama vai o fale.
- Ultrafiltration membrane (0.01-0.1μm): e mafai ona fa'alavelave fa'ama'i ma fa'aoga lautele ile fa'amama toto (silasila ile "Membrane Separation Technology Application Guide").
2). Porous ceramic filter media: High temperature resistant (>1000 tikeri), corrosion resistant, ae maualuga tau, e masani ona faʻaaogaina mo le faʻamamaina o le kesi vevela i totonu o le alamanuia metallurgical.
3). New composite filter media: e pei o le graphene modified filter media, o le adsorption gafatia e sili atu i le 3 taimi ("Nature Materials" 2022 suʻesuʻega), ae e leʻi faʻatautaia i luga o se fua tele.
4. E fa'afefea ona filifili le fa'asalalauga sa'o faamama?
Iloiloga mae'ae'a e fa'atatau i fa'amoemoega fa'amama (e pei o le 'ave'esea o le palapala, fa'ama'i, fa'a'ese'ese'ese), meatotino vai (pH tau, vevela) ma le paketi o tau. Faataitaiga:
- O le tu'ufa'atasiga o le "quartz sand + activated carbon" e masani ona fa'aogaina i totonu o la'au vai;
- Suavai mama i totonu o le alamanuia faaeletonika e mana'omia ona fa'afetaui ma fa'asalalauga fa'amama membrane;
- O fa'asalalauga fa'amama sima e sili ona lelei mo le fa'amama kasa vevela maualuga.
I le lumana'i, a'o fa'aleleia tulaga o le puipuiga o le si'osi'omaga, maualuga-fa'agaioiga ma umi-ola fa'asalalau fa'amama fa'aputuga o le a avea ma taula'iga o su'esu'ega ma atina'e.