Pūhaumāota PolyaluminiumKo te (PAC) he pūhui ngota ngota teitei, ko tōna tauira matū whānui ko Al2(OH)nCl6-nm. Nā ōna āhuatanga matū ahurei, he whānuitia ōna whakamahinga i roto i ngā mara maha. Ka haria koe e tēnei tuhinga ki roto i te mara kia ako i ngā whakamahinga motuhake o tēnei pūhui.
Tuatahi, ka arotakehia whānuitia e te PAC te maimoatanga wai. Ka taea e ia te tango pai i ngā totoka iri, ngā matū colloidal, ngā mea rauropi kore e rewa, tae atu ki ngā matūriki tino nui i roto i te wai. Ka tutuki tēnei mā te tukanga e kiia nei ko te coagulant, ka mahi te PAC hei coagulant. Ka whakakorea e ia ngā pourewa o runga, ka meinga kia huihui hei matūriki nui ake ka taea te wehe ngāwari mai i te wai. Ko te hua he wai mārama ake, he wai haumaru ake e tutuki ana i ngā paerewa kounga mō ngā momo tono e hiahiatia ana, tae atu ki te wai ahumahi. Ka whakamahia hoki te PAC i roto i ngā tukanga purenga wai hei whakakore i ngā totoka iri me te whakapai ake i te kounga o te wai mā te whakaiti i te pōuri. He maha ngā wā ka whakamahia ngātahitia me ētahi atu matū maimoatanga wai, pērā i te PAM, me ētahi atu, kia tutuki ai ngā hua pai rawa atu.
Ka taea te whakamahi i te polyaluminium chloride (PAC) hei mea whakapūkara i roto i te umanga hanga pepa hei rongoā i te paru me te wai ma. He pai ake te mahi a te PAC, he iti hoki te utu, ā, e paingia ana e ngā kaihanga pepa. Hei tāpiri, he mea whakapūkara, he mea pupuri me te āwhina tātari mō te rahinga rosin-kore, ka taea te whakapai ake i te pānga rahinga me te ārai i te poke o ngā papanga mīhini pepa, ngā paru hanga pepa me ngā pūnaha wai ma e ngā hua hydrolyzate.
He pai hoki te mahi a ngā whakarewa polyaluminium chloride i roto i te umanga keri. E whakamahia ana i roto i te horoinga o ngā konganuku, ā, he mahi nui tana i roto i te tukanga wehenga kohuke. I tetahi taha, ka wehea paitia te wai mai i te gangue hei whakahaere i te whakamahinga anō o te wai; i tetahi atu taha, ka whakamarokehia hoki te paru i puta mai.
I roto i te umanga hinu, he tūranga matua anō hoki tā te PAC. Ka whakamahia hei tango i ngā poke o te hinu i te wā e tangohia ana, e whakamahia ana hoki hei whakamahine i te hinu. Ehara i te mea ka taea e ia te tango i ngā mea rauropi kore-rewa, ngā konganuku me ētahi atu matū kino i roto i te wai para, engari ka whakakorea hoki e ia ngā pata hinu kua taurite mai i te wai. I te wā e keri ana i ngā puna hinu, ka āwhina hoki te PAC ki te whakau i te poka me te ārai i te kino o te hanganga. Mā te werohanga ki roto i te poka, ka ārai i te pēhanga hanganga, ka whakaiti i ngā kino ka puta. Nā ngā āhuatanga o te PAC hei kaiwhakapūmau me te whakakaha i te hanganga.
He mea nui anō hoki te ahumahi tā me te tae kakahu mō te PAC. Nā te mea he nui te rahinga o te wai para e puta mai ana i tēnei ahumahi, he hohonu te tae, he nui hoki ngā poke rauropi, ka uaua ake te rongoā. Heoi, nā te mahi a te PAC, ka kaha, ka nui hoki ngā pua konumohe i te wā o te tukanga rongoā wai para, ka tere te tau, ā, he mea whakamiharo te pānga o te rongoā.
Haunga ngā mara o runga ake nei, he mahi anō tā te PAC i roto i te umanga matū o ia rā, te ahuwhenua, te mahi ika me ētahi atu mara. Ko te whakamahinga whānui o te PAC ka taea te kī ko ōna āhuatanga matū ahurei me te maha o ngā whakamahinga. Ko tōna kaha ki te mahi hei whakapūmau, hei whakaū, hei whakapūmau hoki, ka waiho hei taputapu whai hua i roto i ngā momo ahumahi. I te whanaketanga tonu o te hangarau me ngā hiahia o te ahumahi, ko te mahi a te PAC ki te whakatutuki i ēnei hiahia ka whakaū ake i tōna tūranga hei wāhanga nui i roto i ngā tukanga ahumahi maha.
Wā tuku: Hepetema-19-2024