He aha ka ʻokoʻa ma waena o ACH a me PAC?

ʻO ka alumini chlorohydrate (ACH) a me ka polyaluminum chloride (PAC) i ʻike ʻia he ʻelua pūhui kemika ʻokoʻa i hoʻohana ʻianā flocculant i ka mālama wai. ʻO ka ʻoiaʻiʻo, kū ʻo ACH ma ke ʻano he mea koʻikoʻi loa i loko o ka ʻohana PAC, e hāʻawi ana i ka ʻike alumina kiʻekiʻe loa a me ka mea maʻamau i hiki ke loaʻa i nā ʻano paʻa a i ʻole nā ​​ʻano hoʻonā paʻa. He ʻokoʻa iki nā hana kikoʻī o nā mea ʻelua, akā ʻokoʻa loa kā lākou mau wahi noi. E hāʻawi kēia ʻatikala iā ʻoe i kahi ʻike hohonu o ACH a me PAC i hiki iā ʻoe ke koho i ka huahana kūpono.

Polyaluminum chloride

ʻO ka polyaluminum chloride (PAC) kahi polymer molecular kiʻekiʻe me ke ʻano kemika maʻamau [Al2(OH)nCl6-n]m. Ma muli o kāna mau mea kemika kū hoʻokahi, loaʻa iā ia ka laulā o nā noi ma nā ʻano like ʻole. ʻO Polyaluminum chloride (PAC) ke kuleana koʻikoʻi i ka mālama ʻana i ka wai, me ka hoʻopau pono ʻana i nā mea paʻa paʻa, nā mea colloidal, a me nā mea organik insoluble ma o nā kaʻina coagulation. Ma ka hoʻokaʻawale ʻana i nā ʻāpana, hoʻoikaika ʻo PAC i ka hoʻohui ʻana, e hoʻomaʻamaʻa i kā lākou wehe ʻana mai ka wai. ʻO PAC, hoʻohana pinepine ʻia me nā kemika ʻē aʻe e like me PAM, hoʻonui i ka maikaʻi o ka wai, hōʻemi i ka turbidity, a hoʻokō i nā kūlana ʻoihana.

Ma ka ʻāpana hana pepa, lawelawe ʻo PAC ma ke ʻano he flocculant a me ka precipitant, hoʻomaikaʻi i ka mālama ʻana i ka wai a me ka nui o ka rosin-neutral. Hoʻonui ia i nā hopena nui, pale i ka ʻili a me ka ʻōnaehana.

Hoʻonui nā noi a PAC i ka ʻoihana mining, kōkua i ka holoi ʻana a me ka hoʻokaʻawale mineral. Hoʻokaʻawale ʻo ia i ka wai mai ka gangue, hoʻomaʻamaʻa i ka hoʻohana hou ʻana, a hoʻokahe i ka lepo.

I ka ʻili ʻana a me ka hoʻomaʻemaʻe ʻana, hoʻopau ka PAC i nā mea haumia, nā mea ola ʻole, a me nā metala mai ka wai ʻino. Hoʻopau a hoʻoneʻe ia i nā hāʻule aila, hoʻopaʻa i nā luawai a pale i ka pōʻino i ka wā e wili aila.

Loaʻa ka paʻi lole a me ka hoʻoluʻu ʻana mai ka hiki i ka PAC ke mālama i ka wai ʻino me ka nui a me ka nui o nā mea haumia organik. Paipai ʻo PAC i ka hoʻoponopono ikaika a me ka wikiwiki o nā pua alum, e loaʻa ana i nā hopena lapaʻau kupaianaha.

Aluminum Chlorohydrate

ʻO ACH, Aluminum Chlorohydrate, me ka molecular formula Al2(OH)5Cl·2H2O, he pūhui polymer inorganic e hōʻike ana i kahi degere alkalization kiʻekiʻe ke hoʻohālikelike ʻia me ka polyaluminum chloride a me ka alumini hydroxide wale nō. Hoʻokomo ia i ka polymerization alahaka ma o nā pūʻulu hydroxyl, ka hopena i ka mole i loaʻa ka helu kiʻekiʻe o nā pūʻulu hydroxyl.

Loaʻa i ka mālama wai a me nā māka kemika i kēlā me kēia lā (koekome grade), hele mai ʻo ACH ma nā ʻano pauka (paʻa) a me ka wai (solution), me ka paʻa he pauda keʻokeʻo a ʻo ka hoʻonā ʻana he wai aniani ʻole.

He haʻahaʻa ka mea insoluble a me Fe, no laila hiki ke hoʻohana ʻia i nā māla kemika i kēlā me kēia lā.

Loaʻa iā ACH nā noi like ʻole. Hoʻohana ia ma ke ʻano he mea maka no nā lāʻau lapaʻau a me nā mea hoʻonaninani kūikawā, ʻoiai ʻo ia ka mea antiperspirant mua i ʻike ʻia no kona pono, haʻahaʻa haʻahaʻa, a me ka palekana. Eia kekahi, he pipiʻi ka ACH a no laila ʻaʻole i hoʻohana ʻia ma ke ʻano he flocculant i ka wai inu a me ka mālama ʻana i ka wai ʻino. Hōʻike pū ʻo ACH i ka condensation maikaʻi ma luna o kahi kikoʻī pH ākea ma mua o nā paʻakai metala maʻamau a me nā chlorides polyaluminum haʻahaʻa haʻahaʻa.