ʻO ke kumu hana o ke kōkua kānana Diatomite
ʻO ka hana o nā kōkua kānana ke hoʻololi i ke kūlana hoʻohui o nā ʻāpana, a laila e hoʻololi i ka nui o ka hāʻawi ʻana i nā ʻāpana i loko o ka kānana. Hoʻokumu ʻia ʻo Diatomite Filter Aidare me SiO2 paʻa kemika, me nā micropores kūloko nui, e hana ana i nā ʻano paʻa paʻa. I loko o ke kaʻina kānana, hana mua ka honua diatomaceous i mea kōkua kānana porous (pre coating) ma ka pā kānana. Ke hele ka filtrate i loko o ke kōkua kānana, ʻo nā ʻāpana paʻa i loko o ka hoʻokuʻu ʻana e hoʻohui i kahi mokuʻāina, a hoʻololi ka puʻunaue nui. Hoʻopaʻa ʻia nā haumia o nā ʻāpana nui a mālama ʻia ma ka ʻili o ka mea waena, e hana ana i kahi papa hāiki liʻiliʻi. Hoʻomau lākou i ka pale a hopu i nā ʻāpana me nā nui like, e hana mālie i kahi keke kānana me kekahi mau pores. I ka holo ʻana o ka kānana ʻana, komo mālie nā mea haumia me nā ʻāpana liʻiliʻi liʻiliʻi i loko o ka porous diatomaceous earth filter aid media a intercepted. No ka mea, he porosity o ka honua diatomaceous ma kahi o 90% a me kahi ʻāpana kikoʻī nui, i ka wā e komo ai nā ʻāpana liʻiliʻi a me nā bacteria i loko a me waho o nā pores o ke kōkua kānana, hoʻopili pinepine ʻia lākou ma muli o ka adsorption a me nā kumu ʻē aʻe, hiki ke hōʻemi i ka 0.1 μ ʻO ka honua. ʻo ka wehe ʻana i nā ʻāpana maikaʻi a me ka bacteria mai ka m ua loaʻa i kahi hopena kānana maikaʻi. ʻO ka nui o ke kōkua kānana he 1-10% o ka paʻa paʻa i hoʻopaʻa ʻia. Inā kiʻekiʻe loa ka dosage, pili maoli ia i ka hoʻomaikaʻi ʻana i ka wikiwiki kānana.
Ka hopena kānana
Loaʻa ka hopena kānana o Diatomite Filter Aid ma o kēia mau hana ʻekolu:
1. Ka hopena nānā
ʻO kēia kahi hopena kānana ili, kahi i ka wā e kahe ai 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 ʻo sieving. 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 ʻole ke anawaena o nā ʻāpana paʻa ma mua o (a i ʻole ka liʻiliʻi iki) i ke anawaena pore o ka honua diatomaceous, e "pale" ʻia nā ʻāpana paʻa mai ka hoʻokuʻu ʻana, e pāʻani ana i ka kānana ili.
2. Ka hopena hohonu
ʻO ka hopena hohonu ka hopena paʻa o ka kānana hohonu. I ka kānana hohonu, ke kaʻina hana kaʻawale i loko o ka waena. Ua ālai ʻia kekahi o nā ʻāpana haumia liʻiliʻi e hele ana ma ka ʻili o ka keke kānana e nā ala microporous wiliwili i loko o ka honua diatomaceous a me nā pores liʻiliʻi i loko o ka keke kānana. ʻOi aku ka liʻiliʻi o kēia mau ʻāpana ma mua o nā micropores i ka honua diatomaceous. Ke kuʻi nā ʻāpana me ka paia o ke kahawai, hiki ke wehe i ka kahe wai. Eia naʻe, inā hiki iā lākou ke hoʻokō i kēia ma muli o ke kaulike ma waena o ka ikaika inertial a me ke kū'ē ʻana o nā ʻāpana. He ʻano like kēia hana interception a me ka screening a pili i 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. Ka hopena adsorption
He ʻokoʻa loa ka hopena adsorption mai nā ʻano kānana ʻelua i ʻōlelo ʻia ma luna, a hiki ke ʻike 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 kuʻi nā ʻāpana me nā pores liʻiliʻi o loko me ka ʻili o ka honua diatomaceous porous, ua huki ʻia lākou e nā kumu kūʻē a i ʻole e hana i nā puʻupuʻu kaulahao ma o ka huki like ʻana ma waena o nā ʻāpana a pili i ka honua diatomaceous, nona nā mea a pau i ka adsorption. ʻOi aku ka paʻakikī o ka hopena adsorption ma mua o nā mea mua ʻelua, a ke manaʻoʻiʻo ʻia ʻo ke kumu i hoʻopaʻa ʻia ai nā ʻāpana paʻa me nā anawaena pore liʻiliʻi ma muli o:
(1) Nā ikaika waena (i ʻike ʻia ʻo van der Waals attraction), me nā pilina dipole mau, nā pilina dipole i hoʻokomo ʻia, a me nā pilina dipole koke;
(2) Ke ola o Zeta hiki;
(3) Kaʻina hana hoʻololi Ion.
Ka manawa hoʻouna: Apr-01-2024