Ngā Pātai Auau mō te miihini whakaputa mirumiru nano iti.

1. He tika te whakaaro ko te nano Kaihanga Mirumiru he wāhanga tāpiri hei whakaiti i te pūngao, i te mea kei te pupuri tonu tātou i te pūnaha hau (pūwero + kaiwhakarerekē)?

Āe, tino tika.

Ka mahi tahi te miihini whakaputa mirumiru nano me tō pūnaha pupuhi/whakawhitiwhiti o nāianei – ehara i te mea hei whakakapinga. Ka whakaratohia e te pūnaha o nāianei: Te whakawhiti hāora nui me te whakaranu matawhānui (te pupuri i te paru i roto i te whakatārewatanga)

Ka tāpirihia e te kaihanga mirumiru nano te ultra-Mirumiru Paingā (100 nm – 2 μm) e noho ana i roto i te wai mō ngā hāora, kaua mō ngā hēkona. Ka tino whakapai ake tēnei i te pai o te whakawhiti hāora, kia taea ai e koe te whakapoto i te wā whakapūhau katoa, te whakaiti rānei i te mana o te pupuhi me te tutuki tonu i te kounga parahanga ōrite.

2. He aha e kore ai e taea te whakamahi ko te kaihanga mirumiru nano anake?

Nā te mea kāore e puta he ranunga nui mai i ngā mirumiru moroiti-nano. I roto i ngā tukanga paru whakahohe, he rite tonu te hiranga o te whakaranu ki te whakarato hāora.

Ki te kore e ranea te whakaranu, ka tau te paru ki raro i roto i ngā meneti.

Ka ngaro te pānga o te paru tau ki te hāora me ngā poke → ka heke te mahi a ngā moroiti → ka kore e angitu te maimoatanga.

Ka tukuna e ngā mīhini whakarara noa ngā mirumiru nui e tere piki ake ana, e hanga ana i te rere pōrearea – mā taua pōrearea ka noho te paru ki roto i te ranunga. He tino iti ngā mirumiru nano, ā, ka rite ki te "kapua" te āhua, ā, kāore e puta he pānga hiki, whakaoho rānei.

Nō reira, mā te whakamahi noa i tētahi miihini mirumiru nano ka nui te putunga paru, ahakoa te āhua pai o ngā taumata hāora rewa i roto i te pou wai.

3. Ka taea e tātou te whakamahi i tētahi mīhini whakaranu ruku hei whakaoti rapanga whakaranu?

Ae rawa - he otinga tino pai, he otinga ngaio hoki tēnā.

Ina hoki, he maha ngā whakaurunga angitu e whakakotahi ana i: Ngā kaihanga mirumiru nano mō te whakawhiti hāora tino whai hua. Ngā whakaranu ruku (ngā whakaoho tere iti rānei) hei pupuri i te paru kia iri, hei tohatoha hoki i ngā mirumiru nano puta noa i te tāke.

Mā tēnei huinga ka taea e koe te whakaiti, te whakakore rānei i te pūnaha pupuhi/whakawhiti, i runga i te āhua o tō tāke me te kukū o te paru. Heoi, mō te nuinga o ngā WWTP ā-tāone, ka tūtohu tonu mātou kia mau tonu te pūnaha whakapūngao o nāianei hei tārua, kia whakahaere rānei i te aratau wā poto rawa.

4. Me pēhea te whakarite i te mīhini whakaranu ruku me tā mātou mīhini whakaputa mirumiru nano?

Anei ngā whakatakotoranga whai hua e rua:

Kōwhiringa A (kore pokapū) – Whakatakotoria ētahi mīhini whakaranu iti ki raro i te wai tata ki ia pūwāhi tuku mirumiru nano. Ka tere tonu te rere kaha o te mīhini whakaranu ki te pupuhi i ngā mirumiru nano hou ki roto i ngā para paru.

Kōwhiringa B (porowhita pokapū) – Tāutahia tētahi, kia rua rānei ngā mīhini whakaranu ruku nui ake hei waihanga i te rere o te wai puta noa i te tāke katoa. Kātahi ka whakanoho i ngā putanga tuku mirumiru nano ki te taha momi o ngā mīhini whakaranu. Ka kukume mai ngā mīhini whakaranu i te wai kapi i te mirumiru nano, ā, ka tohatoha ōrite.

Kua whakamātauhia ngā huarahi e rua i roto i ngā tipu wai para nui.

5. Ka taea e tātou te hoahoa i tētahi pūnaha e whakamahi ana i ngā mīhini whakaranu ruku me te whakaputa mirumiru nano anake (kāore he pupuhi)?

Ae, he mea hangarau pea tēnei mō ētahi whakamahinga (hei tauira, ngā peihana whakaōrite, ngā roto whakakanapa, ngā wai para iti te kaha rānei). Engari mō ngā tukanga paru whakahohe matua, ka tūtohu mātou i tētahi hoahoa ranu:

Kia iti noa ngā mea whakarara mirumiru, whakahaerehia rānei te pupuhi me te iti rawa o te kaha (hei tauira, 20‑30%) kia pai ai te whakaranu anō.

Tukua kia tutuki i te miihini mirumiru nano me ngā mīhini whakaranu ruku te >70% o te hiahia hāora.

Mā tēnei huarahi ranu ka taea e koe te penapena pūngao mōrahi me te kore e tūpono ki te rahunga o te tukanga.