nūhou

ʻO ke kōkua kānana diatomite e pahele nui i nā ʻāpana haumia paʻa i hoʻokuʻu ʻia i loko o ka wai ma luna o ka ʻili a me ke kahawai o ka waena ma o kēia mau hana ʻekolu, i hiki ai ke hoʻokō i ke kumu o ka hoʻokaʻawale ʻana i ka wai.

1. Sieving hopena He hopena kānana ili kēia. Ke kahe ka wai ma ka honua diatomaceous, ʻoi aku ka liʻiliʻi o nā pores o ka honua diatomaceous ma mua o ka nui o nā ʻāpana haumia, no laila ʻaʻole hiki i nā ʻāpana haumia ke hele a hoʻopaʻa ʻia. Kapa ʻia kēia hopena No ka hopena screening. ʻO ka ʻoiaʻiʻo, hiki ke manaʻo ʻia ka ʻili o ka keke kānana ma ke ʻano he sieve surface me ka nui o ka pore awelika like. Ke emi mai ke anawaena o na mea pa'a ma mua o (a emi iki paha) ke anawaena o na pores o ka diatomite, e " kanana ia mai ka hooku'i 'ana i na mea paa. E hoʻokaʻawale, e pāʻani i ka hana o ka kānana ʻili.

2. Ka hopena hohonu ʻO ka hopena hohonu ka hopena paʻa o ka kānana hohonu. Ma ka kānana hohonu, ke kaʻina hana kaʻawale wale nō i loko o ka "loko" o ka waena. Hoʻopaʻa ʻia kahi ʻāpana o nā ʻāpana haumia liʻiliʻi e komo i ka ʻili o ka keke kānana e nā ala microporous tortuous i loko o ka honua diatomaceous a me nā pores liʻiliʻi i loko o ka keke kānana. ʻOi aku ka liʻiliʻi o kēia ʻano ʻāpana ma mua o nā micropores o ka honua diatomaceous. Ke pā nā ʻāpana i ka paia o ke kahawai, haʻalele paha lākou i ke kahe wai. Eia naʻe, inā hiki ke hiki i kēia wahi e pili ana i ka ikaika inertial a me ke kū'ē o nā mea. ʻO ke kaulike, ʻano like kēia ʻano interception a me ka nānā ʻana, no ka hana mechanical. ʻO ka hiki ke kānana i nā ʻāpana paʻa e pili wale ana i ka nui pili a me ke ʻano o nā ʻāpana paʻa a me nā pores.

3. Adsorption He ʻokoʻa loa ka adsorption mai nā mīkini kānana ʻelua ma luna. ʻO ka ʻoiaʻiʻo, hiki ke manaʻo ʻia kēia hopena ma ke ʻano he electrokinetic attraction, ʻo ia ka mea e hilinaʻi nui ʻia i ka ʻili o nā ʻāpana paʻa a me ka honua diatomaceous ponoʻī. Ke hoʻokuʻi ʻia kēlā mau ʻāpana me nā pores liʻiliʻi o ka honua diatomaceous ma ka ʻili o loko o ka honua diatomaceous porous, ua huki ʻia lākou e nā kumu kūʻē. Aia kekahi ʻano o ka huki like ʻana ma waena o nā ʻāpana e hana i nā pūpū a pili i ka honua diatomaceous. No ka adsorption ʻelua, a ʻoi aku ka paʻakikī o ka adsorption ma mua o nā mea ʻelua. Manaʻo nui ʻia ʻo ke kumu o ka paʻa ʻana o nā ʻāpana paʻa liʻiliʻi ma mua o ke anawaena pore ma muli o: (1) Nā mana intermolecular (i kapa ʻia ʻo van der Waals attraction), me ka hopena dipoles, ka hopena dipole i hoʻokomo ʻia a me ka hopena dipole koke; (2) ke ola o Zeta hiki; (3) kaʻina hana hoʻololi ion

Mai nā hana ʻekolu i luna nei, i ke kaʻina kānana kānana ʻupena o ka hoʻokuʻu ʻana, hoʻohana ʻia ke kōkua kānana diatomite loose e like me ke kānana kānana, ʻo ia ka mea nui e hāʻawi i nā pores he nui e hiki ai no ka papa kānana kānana, ke kānana kānana, a me ka hana ʻana. ua hoʻokaʻawale ʻia ka paʻa a me ka wai.