Flocculation a hoʻohuli i ka flocculation

HOOLAHA
Ma ke kula kemika, ʻo ka flocculation ke kaʻina hana e puka mai ai nā ʻāpana colloidal mai kahi hoʻoheheʻe ʻana i loko o ka flocculent a i ʻole ke ʻano flake mai kahi hoʻokuʻu ʻana a i ʻole ma ka hoʻohui ʻana i kahi mea wehewehe. He ʻokoʻa kēia kaʻina hana mai ka ua no ka mea ua hoʻokuʻu wale ʻia ka colloid i loko o ka wai ma ke ʻano he lūlū paʻa ma mua o ka flocculation a ʻaʻole i hoʻoheheʻe maoli ʻia i ka hopena.
ʻO ka coagulation a me ka flocculation nā hana koʻikoʻi i ka mālama wai. ʻO ka hana coagulation ka mea e hoʻopau a hōʻuluʻulu i nā ʻāpana ma o ka pilina kemika ma waena o ka coagulant a me ka colloid, a me ka flocculate a me ka precipitate unstable particle ma ka coagulating iā lākou i loko o ka flocculation.

OLELO HOOLAHA
Wahi a IUPAC, ʻo ka flocculation "ke kaʻina hana o ka hoʻopili ʻana a me ka hoʻopili ʻana e hana ai nā ʻāpana o kahi hoʻopuehu i nā pūʻulu ʻoi aku ka nui".
ʻO ke kumu, ʻo ka flocculation ke kaʻina hana o ka hoʻohui ʻana i kahi flocculant e hoʻopau i nā ʻāpana paʻa i kau ʻia. I ka manawa like, ʻo ka flocculation kahi ʻenehana hui ʻana e hoʻoikaika i ka agglomeration a kōkua i ka hoʻonohonoho ʻana i nā ʻāpana. ʻO ka coagulant maʻamau ʻo Al2 (SO4) 3• 14H2O.

Kahua noi

HANA HANA WAI
Hoʻohana nui ʻia ka Flocculation a me ka ua i ka hoʻomaʻemaʻe ʻana i ka wai inu a me ka mālama ʻana i ka wai ʻino, ka wai ʻino a me ka wai ʻino. ʻO nā kaʻina hana lapaʻau maʻamau ka gratings, coagulation, flocculation, precipitation, particle filtration a me disinfection.
KEMIHANA ILI
I loko o ke kemika colloidal, ʻo ka flocculation ke kaʻina hana e hui pū ʻia ai nā ʻāpana maikaʻi. Hiki i ka floc ke lana i luna o ka wai (opalescent), noho i lalo o ka wai (precipitate) a i ʻole kānana maʻalahi mai ka wai. Pili loa ka hana flocculation o ka colloid lepo me ka maikaʻi o ka wai maʻemaʻe. ʻO ka hoʻopuehu kiʻekiʻe o ka lepo colloid ʻaʻole wale ke kumu i ka turbidity o ka wai a puni, akā ke kumu hoʻi i ka eutrophication ma muli o ka absorption o nā meaʻai i nā muliwai, nā loko a me nā hull submarine.

KEMIKIKA KINO
No nā emulsions, wehewehe ʻo flocculation i ka hōʻuluʻulu ʻana o nā kulu hoʻoheheʻe hoʻokahi i ʻole e nalowale nā ​​​​droplets pākahi i kā lākou waiwai. No laila, ʻo ka flocculation ka ʻanuʻu mua (droplet coalescence a me ka hoʻokaʻawale pae hope) e alakaʻi ai i ka ʻelemakule hou o ka emulsion. Hoʻohana ʻia nā Flocculants i ka pōmaikaʻi mineral, akā hiki ke hoʻohana ʻia i ka hoʻolālā ʻana i nā waiwai kino o ka meaʻai a me nā lāʻau lapaʻau.

DEFLOCCULATE

ʻO ka hoʻohuli ʻana i ka flocculation ke kūʻē pololei o ka flocculation a i kekahi manawa i kapa ʻia ʻo gelling. ʻO ka sodium silicate (Na2SiO3) kahi laʻana maʻamau. Hoʻopuehu pinepine ʻia nā ʻāpana colloidal ma nā pae pH kiʻekiʻe, koe wale ka ikaika ionic haʻahaʻa o ka hopena a me ka mana o nā cation metala monovalent. ʻO nā mea hoʻohui e pale ai i ka colloid mai ka hana ʻana i ka flocculent i kapa ʻia he antiflocculants. No ka hoʻohuli ʻana i ka flocculation ma o nā pale electrostatic, hiki ke ana ʻia ka hopena o ka flocculant hoʻohuli e ka hiki zeta. Wahi a ka Encyclopedia Dictionary of Polymers, ʻo ka antiflocculation "he mokuʻāina a i ʻole ke ʻano o ka hoʻopuehu ʻana o kahi paʻa i loko o ka wai kahi e kū kūʻokoʻa ai kēlā me kēia ʻāpana paʻa a pili ʻole i kona mau hoalauna (e like me ka emulsifier). ʻAʻole loaʻa nā waiwai hua haʻahaʻa haʻahaʻa loa i ka hoʻokuʻu ʻole ʻana.
He pilikia ka hoʻihoʻi ʻana o ka flocculation i nā mea kanu hoʻomaʻemaʻe ʻana no ka mea e alakaʻi pinepine ai i nā pilikia hoʻoponopono ʻōpala a me ka emi ʻana o ka maikaʻi o ka effluent.