1. Media kānana kiko'ī: ka ikaika nui o ka kānana pono -koina
ʻO ka media kānana granular ka mea i hoʻohana nui ʻia o ka media kānana, kahi e hoʻomaʻemaʻe nui ai i nā wai ma o ka adsorption kino a me ka interception. Aia nā ʻano maʻamau:
1). ʻO ke one Quartz: 0.5-1.2mm ka nui o ka nui, ka waika ikaika a me ke kūpaʻa alkali, ke kumu kūʻai haʻahaʻa, hoʻohana pinepine ʻia no ka inu ʻana i ka wai ma mua o ka hoʻomaʻamaʻa ʻana a me ka mālama ʻana i ka wai (e nānā i ka "Industrial Water Treatment Technology Manual").
2). ʻO ke kalapona hoʻōla: hoʻokaʻawale ʻia i ka lanahu a me ka pūpū niu, me ka porosity a hiki i 500-1500m²/g (kumu ʻikepili: US Environmental Protection Agency EPA), hiki ke hoʻopili i nā mea kūlohelohe a me nā metala kaumaha, kūpono no ka hoʻomaʻemaʻe wai a me ka hoʻomaʻemaʻe ʻana i ka ea.
3). Anthracite: haʻahaʻa haʻahaʻa (1.4{3}}1.6g/cm³), hui pū ʻia me ke one quartz e hoʻomaikaʻi i ka pono kānana, hoʻohana nui ʻia i nā pahu kānana papalua.
ʻO ka hemahema o ka media kānana granular he maʻalahi ia e hoʻopili a pono i ka holoi ʻana maʻamau, me ke ola o 3-5 mau makahiki.
2. Fiber kānana mea: ke koho o ka pono a me ka maikai kānana
Hana ʻia nā mea kānana fiber i nā mea maʻalahi me ka pololei kānana kiʻekiʻe. ʻO nā ʻano lunamakaʻāinana:
1). Polypropylene fiber: corrosion -resistant, hiki ke hana i ka PP pulupulu kānana element, pore size 1-10μm, hoʻohana no ka hoʻomaʻemaʻe wai o ka hale.
2). ʻO ke aniani fiber: pale wela kiʻekiʻe (emi a like paha me ka 280 degere), hoʻohana pinepine ʻia i ka mālama ʻana i ke kinoea ʻōpala ʻoihana, e like me ka ʻōnaehana desulfurization.
3). Ceramic fiber: hui pū ʻia me nā hiʻohiʻona a me nā hiʻohiʻona fiber, ikaika ka hopena hopena, kūpono no ka kānana wai viscosity kiʻekiʻe i ka ʻoihana kemika.
ʻO ka hemahema o nā mea kānana fiber he haʻahaʻa ka ikaika, maʻalahi ke haki ma hope o ka -hoʻohana lōʻihi, a pono e hoʻololi mau.
3. Membrane kānana mea a me nā mea e puka mai ana: ʻenehana loea kiʻekiʻe
1). Mea kānana membrane:
- Microfiltration membrane (0.1-10μm): wehe i ka maʻi bacteria a me nā mea i hoʻopaneʻe ʻia, e like me ka hoʻopau ʻana i nā mea hoʻomaʻemaʻe wai hale.
- Ultrafiltration membrane (0.01-0.1μm): hiki ke ālai i nā maʻi maʻi a hoʻohana nui ʻia i ka lāʻau lapaʻau (e nānā i ka "Membrane Separation Technology Application Guide").
2). Porous ceramic filter media: High temperature resistant (>1000 degere), corrosion kū'ē, akā, kiʻekiʻe kumu kūʻai, ka hapanui hoʻohana 'ia no ke kiʻekiʻe wela kinoea hoʻomaʻemaʻe i loko o ka metallurgical oihana.
3). New composite filter media: e like me graphene modified filter media, ua hoʻonui ʻia ka mana adsorption ma mua o 3 manawa ("Nature Materials" 2022 noiʻi), akā ʻaʻole naʻe i kūʻai ʻia ma ke ʻano nui.
4. Pehea e koho i ka pono kānana media?
ʻO ka loiloi piha e pili ana i nā pahuhopu kānana (e like me ka wehe ʻana i ka turbidity, sterilization, decolorization), nā waiwai wai (waiwai pH, wela) a me ka waihona kālā. ʻo kahi laʻana:
- Hoʻohana mau ʻia ka hui ʻana o "quartz sand + activated carbon" i nā mea kanu wai;
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- Manaʻo ʻia ka pāpaʻi kānana seramika no ka mālama ʻana i ke kinoea ʻea wela wela.
I ka wā e hiki mai ana, e like me ka ho'omaika'i 'ana i nā kūlana ho'omalu kaiapuni, 'o ke ki'eki'e-efficiency a me ka lō'ihi-ola o ka media filter composite e lilo i kumu no ka noi'i a me ka ho'omohala.