Papa wairere kirihou
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Te Poari Whakawai Kirihou
He mea hanga te papa wairere kirihou ki te polystyrene (HIPS) te polyethylene (HDPE) hei rauemi mata. I roto i te tukanga whakaputa, ka tohua te pepa kirihou ki te hanga i tetahi papaa tuwhera. Ma tenei ara ka mahia he papa whakaheke wai.
Kei te kiia hoki he pereti wairere concave-convex, pereti whakamarumaru wai, pereti whakamarumaru o te tuanui o te karati, pereti wairere, me etahi atu. Kia rite ki te whakarite kia tukuna te taikaha o te wai i runga i te tuanui o te karati i muri i te whakakii. Ka taea hoki te whakamahi mo te whakaheke wai.