He aha ngā Pūoko ISE Nitrate Wā-Tūturu e Whakakapi ana i te Tauira Hopu ā-Hauwhā i ngā Rohe Tiaki Wai Whenua o Ūropi

Anei te āhua o te mahi a te kohikohinga tauira hauwhā mō te nitrate i raro i te wai whenua. Ka tae mai tētahi tohunga hangarau mai i te poari wai ki tētahi puna aroturuki i te 15 o Poutū-te-rangi, ka tuku iho i tētahi kaikohi tauira, ka kohi i tētahi tauira 500-miririta, ka tukuna ki tētahi taiwhanga whaimana. Ka tae mai te pūrongo taiwhanga i te 22 o Poutū-te-rangi. Ko te kukū nitrate i taua puna, i taua rā kotahi o Poutū-te-rangi, he 48 mg/L — 2 mg/L i raro iho i te rohenga EU Nitrates Directive o te 50 mg/L. Ka tukuna te pūrongo hauwhā. Kei te mahi tonu te papa puna.

Ko ngā mea kāore i roto i te pūrongo: nā te ua nui i te 19 o Poutū-te-rangi i ringihia te hauota mai i tētahi māra kānga kua whakatōkia ki roto i te wai papaku. I te 24 o Poutū-te-rangi, ko te kukū o te hauota i taua puna aroturuki anō he 71 mg/L. Kua whakaritea te tauira hauwhā e whai ake nei mō te 15 o Hune. Mō ngā rā 83, i tangohia, i tukatukahia, ā, i tohatohahia ki ngā whare te wai inu he nui ake te hauota i te rohe ture. Kāore tetahi i mōhio. Ko te kaupapa tauira hauwhā, i tino tutuki ki te whakaritenga aroturuki ture, i hopu i tētahi tohu raraunga kotahi i taka i waenga i ngā haerenga e rua.

Te Pūoko: Te Tikanga Tuturu o te "Irahiko Whiriwhiri-Āiona" mō te Wai Whenua

Kāore te pūoko ISE nitrate e ine i te nitrate mā te tirohanga whatu. Kāore e whakamahia te mimiti UV pērā i te pūoko COD wai mata. Ka whakamahia he kiriuhi polymer kua pania ki te ionophore — he ngota e herea ana ngā katote nitrate — hei whakaputa i te pūmanawa ngaohiko e rite ana ki te mahi nitrate i roto i te wai e karapoti ana. Ko taua ngaohiko, e inehia ana ki te hiko tohutoro, ā, ka utua mō te pāmahana, ka hurihia ki te pānui kukū i roto i te mg/L mā te whārite Nernst.

He mea nui te whiriwhiringa nā te mea ehara te wai whenua i te otinga nitrate parakore. Kei roto ko te chloride, te paikāpōnate, te sulfate, me te waro waro rewa, ā, ka taea e ēnei katoa te whakararuraru i te ine mena kāore te kiriuhi i te tino whiriwhiri. Ko te tauwehenga whiriwhiringa nitrate o te kiriuhi o te pūoko Honde he tata ki te 0.001 ki te chloride — ko te tikanga he 1,000 ngā wā ka kaha ake tana urupare ki te nitrate i te chloride i ngā kukū ōrite. I roto i te wai whenua Tatimana, ko te nuinga o te wā ko te kukū chloride i roto i ngā puna onepu mai i te 20 ki te 80 mg/L, ko te tikanga he iti iho i te 0.1 mg/L o te nitrate kitea te takoha o te pokanoa chloride — he iti noa iho ki te paepae ture 50 mg/L.

Ka whakakorea e te putanga matihiko RS485 Modbus-RTU te whakahekenga tohu anaro i runga i te 30 ki te 100 mita o te taura i waenga i te pūoko ruku o te puna aroturuki me te kairūri raraunga pane puna. I roto i te porowhita anaro 4-20mA e whakahaere ana i te 80 mita o te taura mā roto i te anga puna mākū, ka taea e te tohu te nekeneke mā te 2-3% nā te pokanoa o te porowhita whenua me te urunga mai o te makuku i te pouaka hononga. He rerekētanga te matihiko RS485 — ka ine i te rerekētanga ngaohiko i waenga i ngā waea tohu e rua, ā, ka whakakorea te haruru aratau-noa. He ōrite te pānui i te pane puna ki te pānui i te pūoko.

Kua hangaia te whakaōrite pāmahana aunoa ki roto i te pane o te pūoko. Ka rerekē te pāmahana o te wai whenua i ngā puna wai pāpaku o Hōrana i ia wā mai i te 8°C i te marama o Poutū-te-rangi ki te 14°C i te marama o Hepetema. Kei roto i te whārite Nernst he tauwehenga pikinga e whakawhirinaki ana ki te pāmahana e whakaputa ana i te hapa 2% mō ia nekehanga Celsius mēnā kāore i whakaōritea. Ka whakatikahia tēnei e te thermistor whakauru i te wā tūturu.

He aha te take o Hōrana, he aha ināianei

Kei raro i te mana whakahaere o te Ture Whakatakoto Nitrates te mana whakahaere o Hōrana — he whakaaetanga motuhake ki te whakamahi i te paru kararehe kia nui ake i te rohe paerewa o te EU o te 170 kg hauota ia heketea ia tau — nā te mea he nui te hua o te ahuwhenua tarutaru o te whenua. I whakahoutia te mana whakahaere, kātahi ka whakakahangia, ā, i roto i te reta a te Komihana Pākehā i te marama o Tīhema 2025 ki te Minita Ahuwhenua o Hōrana, ki a Femke Wiersma, i whakahuatia mārama te hiahia mō te "aroturukitanga pai ake" o te nitrate wai whenua i ngā rohe oneone. I whakapumautia e te aromatawai a te Komihana i te marama o Hūrae 2026 ko te Ture Whakatakoto "kei te noho tonu te mea e tika ana, e tika ana, e whai hua ana" hei tiaki i ngā wai o te EU.

I te marama o Āperira 2026, i whakatūria he whakamātautau mō ngā pūoko Honde RS485 nitrate ISE puta noa i ngā puna aroturuki e 25 i ngā rohe tiaki wai whenua o Groningen me Drenthe, e whakahaerehia ana e te kamupene wai inu a Vitens.

Te Mahi a te Whatunga puta noa i ngā Puna Aroturuki e 25

Kei waenga i te 15 ki te 45 mita te hohonu o ngā puna 25, kei roto katoa i ngā puna wai onepu o te Pleistocene me te kawe wai teitei - ko te tikanga ka tere te urupare ki te utaina o te hauota o te mata, ā, ka tere te ora anō ina tangohia te pūtake hauota. E rua ngā huarahi o te urupare tere: ka piki te wai i roto i te puna mai i te 30 ki te 70 mg/L i roto i ngā rā e toru i muri i te ua nui, ā, ka heke anō ki te 35 mg/L i te wiki i muri mai ina pahemo te ua. Ka ngaro pea i te tauira hauwhā te pikinga me te ora anō, ka puta he 42 mg/L me te mea kāore he mea i tupu.

Ka whakatūria ia pūoko hauota Honde i te wā kua tirotirohia o te puna aroturuki, e iri ana i runga i te taura kowiri tira i te hohonutanga o te wai whenua e tomo ana ki te anga o te puna. Ka rere te taura RS485 ki tētahi pūoko raraunga kua whakanohoia ki roto i te pouaka o te puna. Mō ngā puna 18 o ngā puna 25, ka hono te pūoko raraunga ki tētahi waeine 4G e tuku ana i ngā pānui hauota 15-meneti i roto i te MQTT Json ki te tūāpapa kounga wai matua a Vitens. Mō ngā puna e 7 e toe ana — kei roto i ngā rahui taiao tawhiti e kore e kapi te waea pūkoro — ko te waeine ko LoRaWAN, e tuku ana i ngā raraunga ki tētahi kuwaha i te teihana papu tata rawa atu, 8 ki te 14 kiromita te tawhiti.

I te pūtake o te puna, ka whakaatuhia e te Pūrakau Raraunga me te mata te kukū nitrate o nāianei, te ia o ngā hāora 24, me te hītori 30-rā. I roto i ngā tirotiro whakatikatika o ia marama, ka whakamahia e te tohunga hangarau o te mara he Ringa Mita hei manatoko i te pūoko kua tāutahia ki te tauira hopu i tātarihia e te taiwhanga i kohia i te wā kotahi mai i te puna kotahi. Mena kua neke atu te pūoko i te ±2 mg/L, ka whakakapia ki te papa i roto i te iti iho i te 20 meneti ka whakatikatikaina anō ki te taiwhanga matua o Vitens.

Ka whakakotahi te tūmau Kapua me te pūmanawa i ngā puna e 25 katoa ki roto i te papatohu kotahi. Ka taea e te kaiwhakahaere mahi te kite i ngā raraunga wā-tūturu me ngā raraunga hītori mō te papa puna katoa. Engari ehara te papatohu i te tikanga haumaru matua.

Ko te pūnaha tuku whakaoho tēnei. E rua ngā paepae kua whirihorahia mō ia puna. Ko te paepae tuatahi, i te 40 mg/L, ka whakaoho i tētahi whakamōhiotanga whakatūpato wawe ki te tīma kounga wai — he tohu kei te tata te puna ki te rohe ture 50 mg/L, ā, me whakarerekē pea te ranunga i te tipu maimoatanga. Ko te paepae tuarua, i te 50 mg/L, ka whakaoho i tētahi tuku ā-tinana ka taea te kati aunoa i te papu puna, te whakahohe rānei i tētahi atu puna tango, ka huri i te puna i mua i te taenga o te wai poke ki te wāhi tango maimoatanga.

Ngā Hua o te Marae: Ngā Rohe Tiaki Wai Whenua o Groningen-Drenthe, Paenga-whāwhā–Hōngongoi 2026

Ngā hua o te mahi i muri i ngā rā 100:

• I kitea e ngā pūoko tonu e 31 ngā pikinga hauota neke atu i te 50 mg/L i taka katoa ki roto i ngā matapihi i waenga i ngā rā tauira hauwhā. Ko ēnei kaupapa 31, e tohu ana i te tapeke o te 1,800 hāora o te pānga hauota neke atu i te rohe, kāore e kitea e te kaupapa tauira hauwhā o nāianei.
• I ngā puna e 6, i whakaoho te pūnaha tuku whakaoho i ngā kati papu aunoa ina neke atu te nitrate i te 50 mg/L. I ia o ēnei puna e 6, kua heke te kukū nitrate ki raro iho i te 40 mg/L i te wā i kohia ai he tauira hauwhā - ko te tikanga kua kore rawa te haerenga e tuhia i raro i te tikanga aroturuki o mua.
• Ko te tika o te pūoko ISE, i whakamanahia ki te tātari taiwhanga o ngā tauira hopunga o ia marama, ko te toharite he ±1.8 mg/L puta noa i ngā pūoko 25 katoa i roto i te wā 100-rā. Kotahi te pūoko i neke atu i te ātete ±2 mg/L i te marama tuarua — i kitea te nekenga e te manatoko Ringa-ringa o ia marama, ā, i whakakapia te pūoko.
• I whakamahia e te tīma kounga wai a Vitens ngā raraunga whakatūpato wawe mai i te paepae 40 mg/L hei whakarerekē i ngā ōwehenga whakaranu i ngā tipu maimoatanga e toru, hei ārai i te 12 ngā pikinga pea i mua i te taenga ki te paepae kati 50 mg/L.
• I runga i ngā raraunga whakamātautau, kua tūtohu a Vitens kia whakawhānui ake i te aroturukitanga tonu o te hauota ki ētahi atu puna aroturuki e 60 i roto i ōna rohe tangohanga o Gelderland me Overijssel i te tau 2027.