Polyacrylamide: He Pūmua Maha-mahi i roto i te Ahumahi Hou
Ko te Polyacrylamide (PAM), he pūmua ngota ngota teitei wairewa-wai, he mea nui ki ngā momo ahumahi. He pūmua i ahu mai i ngā monomer acrylamide, ā, i roto i te ahumahi, ko ngā pūmua kei roto neke atu i te 50% o ngā wae hanganga monomer acrylamide e kiia ana ko te polyacrylamide.
Ka taea te whakarōpū i te PAM ki ngā momo kore-ionic, anionic, cationic, me te amphoteric i runga i ōna āhuatanga ionic. Kāore he rōpū ka taea te ionize o te PAM kore-ionic i roto i tōna mekameka ngota, he rōpū utu kino tō te PAM anionic, he rōpū utu pai tō te PAM cationic, ā, he rōpū utu kino, he rōpū utu pai hoki tō te PAM amphoteric.
Ko ngā tikanga whakaputa o te PAM ko te whakapūhuitanga wai, te whakapūhuitanga whakahurihuri, me te whakapūhuitanga i tīmatahia e te hihi. Ko te whakapūhuitanga wai te tikanga tawhito rawa atu, ā, ko te tikanga e whakamahia whānuitia ana nā te mea he haumaru, he iti hoki te utu. Ko te whakapūhuitanga whakahurihuri te mea e pai ake ana mō ngā tono mahi teitei, ā, ko te whakapūhuitanga i tīmatahia e te hihi he tikanga hou e taea ai te whakaputa PAM i te pāmahana taiao me te kore he matū whakaoho.
PAMHe tino pai ngā āhuatanga ā-tinana, ā-matū hoki. He pai te wairewa ki te wai, ā, ka taea te whakarewa ki te wai matao hei hanga i tētahi otinga matotoru. Ka taea e ōna mekameka taumaha-ngota te hanga "piriti" i waenga i ngā matūriki kua mimitihia, ka taea ai te pupuhi me te whakatō o ngā matūriki kua whakatarewahia ki te wai. Hei tāpiri, he āhuatanga matotoru, he āhuatanga piri, he āhuatanga tōia hoki a PAM.
Mō ngā whakamahinga, he whānuitia te whakamahinga o te PAM i roto i te maimoatanga wai, te keri hinu, te hanga pepa, me ētahi atu ahumahi. I roto i te maimoatanga wai, ka taea te whakamahi hei whakapūkara hei mahi tahi me ngā matū whakapūkara pēnei i te PAC hei whakamārama i te paru o te tāone, te paru o ngā ahumahi, me te paru horoi waro. I roto i te ahumahi hinu, ka whakamahia hei matū waipuke hei whakapai ake i te whakaora hinu. I roto i te ahumahi hanga pepa, ka taea e ia te whakapai ake i te tere pupuri o ngā whakakī me ngā tae, me te whakarei ake i te kaha o te pepa.
Heoi, me āta tupato te whakamahi i te PAM. Hei tauira, me whakarewa ki te wai ma, ā, kaua e tere rawa te whakaoho kia kore ai e whati te mekameka ngota. Me whakatau te horopeta mā roto i ngā whakamātautau iti, nā te mea ka matotoru te wai i te nui o te whakamahinga, ā, ka pā ki te whakatōtō.
I te nuinga o te wā, he pūhui maha ngā whakamahinga o te PAM, ā, he mea nui hoki. I te whanaketanga tonu o te ahumahi, ka whānui ake ngā huarahi whakamahi, engari i te wā anō, me aro atu tātou ki tōna whakamahinga haumaru me ōna pānga ki te taiao.
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