Icya mbere: Umuyoboro w'icyuma urinda umuriro gukwirakwira kurusha umuyoboro wa pulasitiki kuko icyuma kidashya. Ntabwo ushyigikira umuriro cyangwa ngo utwike, ugasiga umwobo ucamo umwotsi n'umuriro bishobora kwinjira mu nyubako. Ku rundi ruhande, umuyoboro utwika nka PVC na ABS, ushobora gushya, Guhagarika umuriro uva mu muyoboro utwika bisaba imbaraga nyinshi, kandi ibikoresho birahenze, ariko guhagarika umuriro ku muyoboro utwika, umuyoboro udashobora gushya, biroroshye gushyiraho kandi bihendutse.
Icya kabiri: Kimwe mu bintu bitangaje ku miyoboro y'icyuma gikozwe mu cyuma ni uko iramba. Kubera ko imiyoboro ya pulasitiki yashyizweho ku bwinshi kuva mu ntangiriro za 1970, igihe cyo kuyikoresha ntikiramenyekana. Ariko, imiyoboro y'icyuma yakoreshejwe kuva mu myaka ya 1500 mu Burayi. Mu by'ukuri, imiyoboro y'icyuma imaze imyaka irenga 300 itanga amasoko ya Versailles mu Bufaransa.
Icya gatatu: Imiyoboro y'icyuma gishongeshejwe n'imiyoboro ya pulasitiki byombi bishobora kwangirika bitewe n'ibikoresho byangirika. Umuyoboro w'icyuma gishongeshejwe uhura n'ingese iyo urwego rwa pH ruri mu muyoboro rugabanutse rukagera munsi ya 4.3 mu gihe kirekire, ariko nta karere k'imyanda y'amazi meza muri Amerika kemerera ikintu cyose gifite pH iri munsi ya 5 kujugunywa mu buryo bwo gukusanya imyanda y'amazi. 5% gusa by'ubutaka muri Amerika ni bwo bwangiza ibyuma, kandi iyo bushyizwe muri ubwo butaka, umuyoboro w'icyuma urashobora kurindwa byoroshye kandi bihendutse. Ku rundi ruhande, umuyoboro wa pulasitiki ushobora kwangirika kubera aside nyinshi n'ibintu bishongesha kandi bishobora kwangizwa n'ibikomoka kuri peteroli. Byongeye kandi, amazi ashyushye arenze dogere 160 ashobora kwangiza sisitemu z'imiyoboro ya PVC cyangwa ABS, ariko nta kibazo biteza imiyoboro y'icyuma gishongeshejwe.
Igihe cyo kohereza: Ugushyingo-25-2020
