Poari PCB e whakamahia nuitia ana i roto i te hikohiko, rorohiko, taputapu hiko, taputapu miihini me etahi atu ahumahi. Ko te tautoko o nga waahanga ka whakamahia te nuinga ki te hono i nga waahanga ki te whakarato hiko. I roto ia ratou, ko nga papa taiawhio 4-papa me te 6-papa te mea tino noa me te whakamahi whanui. , Ka taea te whiriwhiri i nga taumata rereke o nga papahanga PCB kia rite ki nga tono ahumahi.

Te tukanga waikura o te papa iahiko PCB:

I te nuinga o te wa ka oti te mahi tarai o te papa taiawhio i roto i te tank waikura. Ko te mea hangai he ferric chloride. Ko te otinga (FeCL3 kukū 30% -40%) he iti, he puhoi te tere o te tauhohenga o te waikura, he ngawari te whakahaere i te tukanga, a he mea e tika ana.

I te nuinga o te wa ka mahia te wairewa haupapa ki te ferric chloride me te wai. Ko te ferric chloride he totoka kowhai, he ngawari ki te tango i te makuku i te rangi, no reira me hiri me te rongoa. I te wa e whakarite ana i te wairewa ferric chloride, 40% ferric chloride me te 60% wai e whakamahia ana, o te akoranga, he nui ake te ferric chloride, he wai mahana ranei (ehara i te wai wera hei aukati i te peita kia taka atu) ka tere ake te tauhohenga Kia mahara ko te ferric chloride. he pirau. Ngana kia kaua e pa ki to kiri me o kakahu. Whakamahia he ipu kirihou iti mo te oko tauhohenga, me uru noa ki te papa taiawhio.

Tīmata ki te waikura i te papa iahiko PCB mai i te taha. I te wa e waikuratia ai te pepa parahi kare i peitahia, me tango te papa taiawhio i te wa tika kia kore ai te peita e horo i nga iahiko whaihua. I tenei wa, horoia ki te wai ma, ka waruhia te peita ki te maramara bamboo i te ara (i tenei wa, ka puta mai te peita i te wai, ka ngawari ake te tango). Ki te kore e ngawari ki te rakuraku, horoia noa ki te wai wera. Katahi ka horoia kia maroke, ka whakaoapahia ki te pepa kirikiri, ka kitea te kopa parahi kanapa, ka reri he papa taiawhio.

I muri i te waikura o te papa taiawhio kua taia, me mahi nga maimoatanga e whai ake nei i muri i te waikura o te papa taiawhio.

1. I muri i te tangohanga o te kiriata, ka rukuhia te papa taiawhio kua oti te horoi ki te wai ma ki roto i te wai wera mo etahi wa, katahi ka taea te tihorea te kiriata pania (whakapiri). Ko te waahi kaore i horoia ka taea te horoi ki te angiangi kia ma.

2. Tangohia te kiriata waikura. Ina tihorea te kiriata pania (whakapiri), i muri i te whakamaroketanga o te papa taiawhio kua taia, me horoi tonu te papa ki te kakahu i toua ki te paura whakakino hei muru i te kiriata waikura i runga i te pepa parahi, kia pai ai te taiawhio me te whakapiringa. ka kitea te tae o te parahi ki runga i te kōpae.

Me tohuhia i te wa e muru ana i te pepa parahi ki te kakahu, me muru ki te huarahi kua whakaritea kia rite ai te ahua o te pepa parahi, he ahua ataahua atu. Horoia te papa taiawhio kua orohia ki te wai ka whakamaroke.

3. Te whakamahi i te rewharewha Kia pai ai te whakakorikori, me whakarite te kawe o te papa taiawhio me te aukati i te pirau, i muri i te otinga o te papa taiawhio, me tono he papa o te rere ki te pepa parahi o te papa taiawhio kia kore ai te hāora.