Ko te parahanga o te hau me te wai kei roto tonu i ngā take nui rawa atu o te ao, e whakararu ana i ngā pūnaha rauropi nui, i ngā mekameka kai, me te taiao e tika ana mō te oranga o te tangata.
Ko ngā parahanga wai e ahu mai ana i ngā katote konganuku taumaha, i ngā parahanga rauropi ātete-wai, me ngā huakita—he parahanga paitini, kino mai i ngā tukanga ahumahi me ngā tukanga waipara kāore e pirau noa. Ka nui haere te raruraru nā te whakatōtōtanga o ngā wai o te wai, ka hua ake he āhuatanga pai mō te tini o ngā huakita ki te whakaputa uri, ka whakapokea ake, ka pā kino hoki ki te kounga o te wai.
Ko te parahanga o te hau te nuinga o ngā matū waro mimiti (VOC), ngā waikura hauota (NOx), ngā waikura whanariki (SOx), me te hauhā waro (CO2) – ngā poke e ahu mai ana i te tahunga o ngā wahie pūmua. Te pānga o te CO2hei hau kati kōtuhi kua whānuitia te tuhi, me te nui o te CO2he pānga nui ki te āhuarangi o Papatūānuku.
He whānuitanga o ngā hangarau me ngā huarahi kua whakawhanakehia hei whakautu i ēnei take, tae atu ki te mimiti waro whakahohe, te tātaritanga ultra, me ngā tukanga waikura matatau (AOP) e whai ana ki te whakatau i ngā take parahanga wai.
Mai i te pūnaha mimiti VOC, ka kitea e koe he wāhanga nui te waro whakahohe poutū, ā, he mea rongonui te whakamahi i roto i ngā pūnaha maimoatanga VOC hei rauemi mimiti utu-pai.
Ko te waro whakahohe, i whakamahia whānuitia i ngā ahumahi mai i te mutunga o te Pakanga Tuatahi o te Ao, i waenganui o te tekau tau atu i 1970, ko te mea i pai ake mō te whakahaere i te parahanga o te hau o ngā VOC nā te mea he kaha ki te tango i ngā kohu waro mai i ngā awa hau ahakoa kei te aroaro o te wai.
Ko te pūnaha mimiti waro-moenga tuku iho—tētahi e whakawhirinaki ana ki te whakahoutanga rōpū—he tikanga whai hua pea mō te whakahoki mai i ngā whakarewa mō tō rātou uara ōhanga. Ka puta te mimiti ina pa te kohu whakarewa ki te moenga waro, ā, ka kohia ki runga i te mata o te waro whakahohe porous.
He whai hua te mimiti waro-moenga i roto i ngā mahi whakaora-whakarewa i ngā kukū whakarewa neke atu i te 700 ppmv. Nā ngā whakaritenga hauhautanga me ngā ture ahi, ko te mahi noa ko te pupuri i ngā kukū whakarewa i raro i te 25% o te rohe pahūtanga o raro (LEL).
Wā tuku: Hanuere-20-2022