Imifuka y'icyayi idafite pulasitiki? Yego, wabyumvise neza…

Uruganda rwa Tonchant rukora impapuro ziyungurura za pulasitiki 100% zikoreshwa mu gusya amasashe y'icyayi,MENYA BYINSHI HANO

Igikombe cyawe cy'icyayi gishobora kuba kirimo ibice bya mikorosike miliyari 11 kandi ibi biterwa n'uburyo agafuka k'icyayi gakozwe mu buryo bwa ikoranabuhanga.

Dukurikije ubushakashatsi buherutse gukorwa muri Kaminuza ya McGill muri Kanada, gushyira agashashi k'icyayi ka pulasitiki ku bushyuhe bwa dogere selisiyusi 95 bisohora uduce duto twa pulasitiki tugera kuri miliyari 11.6 - uduce duto twa pulasitiki turi hagati ya nanometero 100 na milimetero 5 - mu gikombe kimwe. Urugero, ugereranije n'umunyu, wagaragaye ko urimo pulasitiki, buri gikombe kirimo uburemere bwa pulasitiki inshuro ibihumbi, kuri mikorogarama 16 kuri buri gikombe.

Kuba hari plastike ntoya n’iziciriritse mu bidukikije no mu ruhererekane rw’ibiribwa bikomeje gutera impungenge. Nubwo abaguzi b’abahanga barimo guteza imbere kugabanya plastike zikoreshwa rimwe, bamwe mu bakora ibikoresho birimo gukora paki nshya za plastike kugira ngo zisimbuze ikoreshwa rya gakondo ry’impapuro, nk’udufuka twa plastike. Intego y’ubu bushakashatsi kwari ukumenya niba udufuka twa plastike dushobora kurekura plastike ntoya cyangwa nanoplastike mu gihe cyo guteka. Tugaragaza ko guteka agafuka kamwe ka plastike ku bushyuhe busanzwe (95 °C) bisohora plastike ntoya miliyari 11.6 na nanoplastike miliyari 3.1 mu gikombe kimwe cy’ikinyobwa. Imiterere y’uduce twarekuwe ihuye n’udufuka twa plastike tw’umwimerere (nylon na polyethylene terephthalate) hakoreshejwe Fourier-transform infrared spectroscopy (FTIR) na X-ray photoelectron spectroscopy (XPS). Ingano y’uduce twa plastike twa nylon na polyethylene terephthalate twarekuwe mu dufuka twa plastike ni nini cyane kuruta ubwinshi bwa plastike bwavuzwe mbere mu bindi biribwa. Isuzuma rya mbere ry’uburozi bw’inyamaswa zitagira urutirigongo ryerekana ko kwibasirwa n’uduce duto gusa twakuwe mu mifuka y’icyayi byateje ingaruka ku myitwarire n’iterambere ry’inyamaswa bitewe n’umuti.