Kua noho ngā RW Maha hei wae tino nui i roto i ngā pūrere hiko o nāianei. I te haerenga o ngā hangarau hiko, kei te whiwhi ngā pūrere i te āhuatanga nui ake me te hiahia ki te kōpaka, kia nui ake te arawhiti hei tautoko i ngā taumahinga matatini. Me hōpara tātou i ngā huanga o ngā PCBs maha me tō rātou hiranga whakawhānui puta noa i te umanga.
E tohutoro ana ngā PCBs maha ki ngā papa arawhiti tā me ngā apa kapa tāpae maha e wehea ana e ngā rauemi hiko. I whakatauritetia ki ngā papa apa kotahi, taurua rānei, ka whakahohe ngā PCBs maha i te kiato ararere teitei ake me ngā tahora ara iahiko matatini ake i roto i tētahi hoahoa kiato mā te whakakā i te PCB maha. Mā tēnei e āhei ai te whakarite i ētahi atu arawhiti i roto i tētahi tapuwae iti iho kia taea ai te whakaiti. Mā te whakakāwai PCB maha hoki e taea ai te wehenga o ngā ara iahiko i runga anō i ngā momo tohu hei whakamōkito i te turituri me te kōrero whakawhiti.
Ko te whakakā PCB maha ko te tīaroaro tōtika me te whakahaeretanga o ngā apa whanonga maha me ngā apa whakaroto hei hanga i tētahi papa whakahoahoa. I roto i te tukanga whakanao o ngā PCBs apa-maha, ka whakamahia ngā tukanga kōaro pēnei i te wiri me te whiri i te wā o te whakakā PCB maha hei waihanga i ngā tūhononga interlayer. Mā te whakamātau rigorous e whakarite te whaikikotanga o ngā tūhononga me ngā hua tiketike. Mai i te apa-4 ki tua atu i te apa 32, ka homai e te whakakā PCB maha te ngāwari ake o te hoahoa kia tutuki ai ngā whakaritenga whakauru maha.
Mā te pikinga ake o te matatinitanga o ngā hiko, kua hangaia ngā RW maha i hangaia mā ngā tukanga papa maha tōtika puta noa i ngā taupānga mai i te āhua ātea ki te rongoā. Ka whakaaetia e rātau te mahinga wera arotau mā te whakakore i te wera i runga i nga apa maha. Ka wetemaukati te whakakā PCB maha i te taumahinga nui ake, te whaikiko me te whakamōkitotanga mō te mahi hou hua.
Tērā anō, ka kawea mai e te whakakā PCB maha nga tauine tauine mo te hanganga hiko tiketike. Nā te matutanga hangarau i whakahekea ai ngā utu o ngā rauemi taketake me ngā tukanga whakakā mō ngā PCBs maha. Ka arotau anō te hanganga ā- Paewhiri i te tōtika o te whakaputa PCB maha. Nā reira, kua noho tika te utu o ngā PCBs maha ahakoa mō ngā hoahoa matatini iti iho mā te whakakā i te pūru maha.
Hei whakarāpopototanga, ka whakangāwari te whakakā PCB maha i ngā hoahoa ara iahiko matatini, kiato hoki e tino nui ana mō te mahi hou ā-hiko o nāianei. Kei te whakahohe te PCB papamaha i ētahi atu whakapainga pūrere, taumahinga me ngā whakapainga mahinga. Ka tipu tonu te tohunga whakakā PCB maha mō ngā hiko whakatupuranga panuku.
