I kēia mau lā, ua hōʻike ʻia kahi haʻawina mai ke Kulanui ʻo McGill ma Kanada e hoʻokuʻu ana nā ʻeke kī i nā ʻumi piliona o nā ʻāpana plastik i nā wela kiʻekiʻe. Ua manaʻo ʻia ʻo kēlā me kēia kīʻaha kī i brewed mai kēlā me kēia ʻeke kī he 11.6 billion microplastics a me 3.1 billion nanoplastic particles. Ua paʻi ʻia ke aʻo ʻana ma ka American Journal of Environmental Science and Technology ma Kepakemapa 25.
Ua koho malū lākou i ʻehā ʻeke kīʻaha: ʻelua ʻeke nylon a me ʻelua ʻeke PET. ʻO ka mea kūikawā, hiki ke hoʻohana ʻia ka PET i ka pae wela o 55-60 ℃ no ka manawa lōʻihi, a hiki ke kū i ka wela kiʻekiʻe o 65 ℃ a me ka mahana haʻahaʻa o - 70 ℃ no ka manawa pōkole, a he liʻiliʻi ka hopena i kona mau waiwai mechanical. kiʻekiʻe a haʻahaʻa wela. E kiola i ke kī, holoi i ka ʻeke me ka wai hoʻomaʻemaʻe, a laila e hoʻohālikelike i ke kaʻina hana o ka brewing kī, a hoʻoinu i ka ʻeke ʻole me ka wai wela 95 ℃ no 5 mau minuke. ʻIke ʻia ʻo ka wai a mākou e hana ai i ke kī he wai paila, a ʻoi aku ka kiʻekiʻe o ka mahana ma mua o ka hoʻohana ʻana o PET.
Hōʻike ka ʻike o McGill e hoʻokuʻu mua ʻia ka nui o nā ʻāpana plastik. Hiki i ke kīʻaha kīʻaha ke hoʻokuʻu ma kahi o 11.6 biliona microns a me 3.1 biliona nanometer o nā ʻāpana plastik! Eia kekahi, inā he mea ʻawaʻawa kēia mau mea palaka i hoʻokuʻu ʻia i nā meaola. No ka hoʻomaopopo ʻana i ke ʻano o ke kino, ua hoʻohana ka poʻe noiʻi i nā ʻauʻau wai, he invertebrate, ʻo ia ke ʻano mea hoʻohālike i hoʻohana ʻia e loiloi i nā toxins i ke kaiapuni. ʻO ke kiʻekiʻe o ka ʻeke kī, ʻoi aku ka liʻiliʻi o ka ʻauʻau ʻauʻau wai. ʻOiaʻiʻo, ʻoi aku ka maikaʻi o ka metala kaumaha + plastik ma mua o nā ʻāpana plastik maʻemaʻe. ʻO ka hope, ʻaʻole i make ka peʻa wai, akā ua ʻino. Ua hoʻoholo ka haʻawina inā pili ka ʻeke kī i nā ʻāpana plastik i ke olakino kanaka pono e noiʻi hou aku.
Ka manawa hoʻouna: Feb-14-2023