Yini oke wayizwa ngepulasitiki ongakaze uyizwe?
Izinto zepulasitiki ezivumelana nemvelo nezemvelo ezifana nemikhiqizo yephepha nemikhiqizo yoqalo ziye zadonsa ukunaka kwabantu.Ngakho-ke ngaphezu kwalokhu, yiziphi izinto ezintsha zemvelo ezihlukile ezikhona?
1) Ukhula lwasolwandle: impendulo yenkinga yepulasitiki?
Ngokuthuthukiswa kwe-bioplastics, ukhula lwasolwandle luye lwaba ngenye yezindawo ezihamba phambili zokupakisha zendabuko zepulasitiki.
Njengoba ukutshala kwawo akusekelwe ezintweni ezisekelwe emhlabathini, ngeke kunikeze noma iyiphi impahla yezingxabano ezivamile zokukhishwa kwekhabhoni.Ngaphezu kwalokho, izimila zasolwandle azidingi ukusebenzisa umanyolo.Kuyasiza ukubuyisela impilo ye-ecosystem yayo yasolwandle eqondile.Akuyona nje kuphela i-biodegradable, kodwa futhi i-compostable ekhaya, okusho ukuthi ayidingi ukubola ukusabela kwamakhemikhali ezindaweni zezimboni.
I-Evoware, isiqalo sokupakisha esimeme sase-Indonesia, sidale amaphakheji e-algae angokwezifiso angahlala iminyaka emibili futhi angadliwa.Kuze kube manje, izinkampani ezingama-200 ezimbonini zokudla, izimonyo nezindwangu beziwuhlola lo mkhiqizo.
I-notpla yaseBrithani yokuqala iphinde yasungula uchungechunge lokupakishwa kokudla okusekelwe olwandle nesiphuzo, njengezikhwama ze-ketchup ezinganciphisa ukukhishwa kwe-carbon dioxide ngo-68%.
Ibizwa ngokuthi oohos, isetshenziselwa ukupakisha okuthambile kweziphuzo namasoso, umthamo osukela ku-10 kuye ku-100 ml.Lawa maphakheji angadliwa futhi alahlwe kumfucumfucu wasekhaya ojwayelekile futhi wonakaliswe endaweni yemvelo emasontweni ayisi-6.
2) Ingabe i-coconut fiber ingenza izimbiza zezimbali?
I-Foli8, umthengisi we-electronics wezitshalo waseBrithani, wethule izinhlobonhlobo zezimbiza zezimbali ezibolayo ezenziwe nge-coconut fiber ne-latex yemvelo.
Lesi sitsha esisekelwe esitshalweni asisizi nje kuphela ukunciphisa indawo yemvelo, kodwa futhi siyazuzisa ngokombono we-horticultural.Njengoba sonke sazi, izimbiza ze-fiber shell zikakhukhunathi zingakhuthaza ukukhula okuqinile kwezimpande.Lokhu kusungula futhi kugwema isidingo sokubunjwa kabusha, njengoba izibumbi ezindala zingafakwa kalula kwezikhudlwana kuyilapho zinciphisa ingozi yokulimala kwezimpande.
I-Foli8 iphinde ihlinzeke ngezixazululo zokutshala zebhizinisi zezindawo ezidumile zase-London njenge-Savoy, kanye nezinye zezindawo zokusebenza eziphezulu zomhlaba wonke zase-UK.
3) I-Popcorn njengento yokupakisha
Ukusebenzisa ama-popcorn njengento yokupakisha kuzwakala njengelinye ihlaya elidala.Kodwa-ke, muva nje, abacwaningi eNyuvesi yaseGottingen baye basungula izinto ezinjalo ezisekelwe esitshalweni ezihambisana nemvelo njengendlela ehlukile yemvelo kune-polystyrene noma ipulasitiki.Inyuvesi isayine isivumelwano selayisense ne-nordgetreide sokusetshenziswa kwezentengiselwano kwezinqubo nemikhiqizo embonini yokupakisha.
UStefan Schult, umqondisi ophethe we-nordgetreide, uthe lokhu kufakwa kwezitshalo kuyindlela enhle esimeme.Yenziwe ngemikhiqizo engenakudliwa ekhiqizwa ngama-cornflakes.Ngemuva kokusetshenziswa, ingafakwa umquba ngaphandle kwezinsalela.
"Le nqubo entsha isekelwe kubuchwepheshe obuthuthukiswe imboni yepulasitiki futhi ingakhiqiza izingxenye ezihlukahlukene ezibunjiwe," kuchaza uprofesa u-Alireza kharazipour, inhloko yethimba labacwaningi.“Lokhu kubaluleke kakhulu uma ucabanga ukupakisha ngoba kuqinisekisa ukuthuthwa kwemikhiqizo ngendlela ephephile futhi kunciphisa nokumosha.Konke lokhu kufezwa ngokusebenzisa into engakwazi ukubola ngemva kwalokho.”
4) I-Starbucks yethula "ipayipi le-slag"
Njengesitolo sekhofi esikhulu kunazo zonke emhlabeni, i-Starbucks ibilokhu iphambili kunezimboni eziningi zokudla emgwaqeni wokuvikela imvelo.I-tableware elahlayo eyenziwe ngezinto ezonakalisayo njenge-PLA nephepha ingabonakala esitolo.Ngo-Ephreli kulo nyaka, i-Starbucks yethula ngokusemthethweni utshani obungaboli owenziwe nge-PLA nezindawo zekhofi.Kuthiwa izinga le-biodegradation yotshani lingafinyelela ngaphezu kuka-90% phakathi nezinyanga ezine.
Kusukela ngomhlaka-22 Ephreli, izitolo ezingaphezu kuka-850 eShanghai ziye zahola ekuhlinzekeni ngale “payipi le-slag” futhi zihlela ukumboza kancane kancane izitolo ezweni lonke phakathi nonyaka.
5) Ibhodlela lephepha elihlanganisiwe le-Coca Cola
Kulo nyaka, i-Coca Cola iphinde yethula ukupakishwa kwebhodlela lephepha.Umzimba webhodlela lephepha wenziwe ngephepha le-Nordic wood pulp, elingasebenza kabusha ngo-100%.Kukhona ifilimu yokuvikela yezinto eziphilayo ezingaboli odongeni lwangaphakathi lomzimba webhodlela, futhi isivalo sebhodlela senziwa ngepulasitiki ebolayo.Umzimba webhodlela usebenzisa i-inki eqhubekayo noma umbhalo we-laser, ophinde wehlise inani lezinto ezibonakalayo futhi unobungani bemvelo.
Umklamo ohlanganisiwe uqinisa amandla ebhodlela, futhi umklamo wokuthungwa oshwabene wengezwa engxenyeni engezansi yebhodlela ukuze ubambe kangcono.Lesi siphuzo sizothengiswa ngendlela yokuhlola emakethe yaseHungary, i-250 ml, futhi iqoqo lokuqala lizokhawulelwa kumabhodlela angu-2000.
I-Coca Cola ithembise ukuzuza u-100% wokusebenzisa kabusha ukupakisha ngo-2025 futhi ihlela ukusungula uhlelo ngo-2030 lokuqinisekisa ukuthi ukupakishwa kwebhodlela ngalinye noma ithini kuzogaywa kabusha.
Nakuba amapulasitiki awonakele ane “halo yemvelo” yawo siqu, abelokhu ephikisana embonini.Amapulasitiki awonakele asephenduke “intandokazi entsha” yokushintsha amapulasitiki ajwayelekile.Kodwa-ke, ukuze kuthuthukiswe ngempela amapulasitiki awonakalayo isikhathi eside, indlela yokubhekana nenkinga yokulahlwa kwemfucuza yesayensi ekhiqizwa ngemva kokusetshenziswa okukhulu kwamapulasitiki awonakele kuyoba iphuzu eliyinhloko elivimbela ukuthuthukiswa okunempilo nokuqhubekayo kwamapulasitiki awonakele.Ngakho-ke, ukukhuthazwa kwamapulasitiki awonakalayo kunendlela ende okufanele ihambe.
Isikhathi sokuthumela: Mar-12-2022