Ko te alumina whakahohe me te tātari ngota, he āhua rite tonu (he porowhita iti te āhua o ngā mea e rua), he rite tonu te tukanga e mahia ana e rāua (ka mimiti i te rauemi i te taumata ngota), ā, he āhuatanga whakaora anō kei a rāua (ka taea e koe te whakamahi anō i te rauemi ina eke te kaha o te whakamaroke) engari he tino rerekē ngā hua e rua. Nō reira, ko te pātai, me te maha o ngā āhuatanga ōrite, he aha te rerekētanga o rāua?
He tīmatanga pai te hanga o ēnei mea. Ko te alumina whakahohe he mea hanga mai i te waikura konumohe he tino porous, ko te tātari ngota ia he mea hanga mai i ngā konganuku tioata alumino-silicates. Ko te tikanga o tēnei, ka taea te hanga i ngā pūwero i runga i te tātari ngota ki ngā rahi motuhake e kitea whānuitia ana ko te 3A, 4A, 5A, me te 13X, engari kāore he rahi ine motuhake o ngā pūwero o te alumina whakahohe. Ko te tikanga o tēnei, ka taea te whakamahi i te tātari ngota hei wehewehe i ētahi ngota o ngā rahi motuhake mai i a rātou anō, hei tauira, te tango i te haukini mai i ngā awa hau māori.
Mai i te tirohanga tono, anei ngā rerekētanga. He tino kaha te kaha mimiti wai o te alumina whakahohe, he nui ake te wai ka taea te mimiti i te tātari ngota, nā reira he rauemi tino whai hua i roto i ngā pūwero hau, i ētahi tono tukatuka hau māori rānei. Nā te pakari o te rauemi ka taea e ia te tu atu i te nui o te pēhanga me te nui o te haumākū.
Kāore e taea e te alumina whakahohe te mimiti i te tini o ngā rauemi, te wehewehe rānei i ētahi ngota mai i a rātou anō pērā i ngā tātari ngota, ā, kāore e whai hua i roto i tētahi tukanga pēnei i te whakamaroketanga etanoru. Nā te mea ka taea e te alumina whakahohe te mimiti i ngā ngota etanoru me te wai, ā, kāore e puta he wehenga.
Kāore pea e taea e te tātari ngota te mimiti i te nui o te wai, engari ki te hiahia koe ki te whakaiti i te nui o te wai, tae atu ki te 0.1ppm, ko te tātari ngota te mea mimiti pai māu nā te mea he mea tēnei kāore i taea e ētahi atu mea mimiti i tua atu i te tātari ngota.
Ka taea hoki te whakamahi i te tātari ngota hei wehewehe i ngā ngota motuhake tetahi i tetahi, nā te whakaritenga o ō rātou pūwero. Hei tauira, ka taea e koe te wehewehe i te wai mai i te etanoru, me te hauhā waro, te haukini, me ngā hauwaiwai nui ake mai i ngā awa hau māori, he mea kāore e taea e te alumina whakahohe te mahi, kāore rānei e mahi me te pai o te mahi.
Wā tuku: Akuhata-05-2019