Abantu abaningi bakhathazeka ngokuthi njengoba isikhwama sokuvikela imvelo esonakalisayo sinokusebenza okuhle kwemvelo futhi singacekelwa phansi ngokushesha, kusho ukuthi ukutshalwa kwezindleko kwaso kuphezulu kakhulu futhi izindleko zocwaningo nentuthuko ziphezulu uma kuqhathaniswa.Ukusetshenziswa kommbila nezinye izitshalo zokudla kuyavutshelwa ukukhiqiza i-lactic acid.Umphumela wezitshalo zokusanhlamvu uthintwa izinto eziningi ezifana nezimo zokuvuna kanye nemakethe yamazwe ngamazwe.Umthombo ungase ube nokuguquguquka okukhulu, ngakho intengo yawo yokuthengisa izobiza kakhulu.Namuhla, ifekthri yezikhwama zokuvikela imvelo ebolayo izogxila kulokhu okungenhla.Isihloko sihlaziywa njengesibonelo.
Isizathu esenza ukuthi izitolo ezinkulu eziningi manje zinikeze izikhwama ezikhokhelwayo eziwohlokayo ukuze wonke umuntu agcine izinto, esikhundleni sokukhetha izikhwama zepulasitiki zamahhala, ikakhulukazi ngoba ziyazi ukuthi izikhwama ezonakaliswayo zinesici sokuphepha esisezingeni eliphakeme, isici esiphakeme kakhulu sokuvikela imvelo, futhi singasetshenziswa kabusha ngokuphindaphindiwe. ., okungcono kakhulu.
Ngakho-ke, yini impahla yesikhwama sokuchithwa?Ngokuvamile, izikhwama ezivamile ezibolayo zisekelwe ku-polyolefin resin engeyona enobuthi, bese wengeza isitashi esithile, isitashi esishintshiwe, i-cellulose, i-agent ye-biodegradation kanye nezinye izinto zokusetshenziswa.Yingoba ukukhethwa kwayo kwempahla eluhlaza kuvame ukuqhathaniswa Kuhlukile ngezikhwama zepulasitiki, ngakho-ke kunezici zokuwohloka.Siyazi ukuthi ngenxa yenani elikhulu lokukhishwa kwegesi kanye nokuthuthukiswa kwezinsiza, umhlaba uya ukufudumala kancane, futhi umonakalo emvelweni mkhulu kakhulu.Ngakho-ke, amadolobha amaningi aseqalile ukwethula ukusetshenziswa kwezikhwama ze-biodegradable, futhi sincoma ukuhamba okuluhlaza kanye nokugibela ugesi.Ukuhamba ngezimoto, ukuze kugwenywe inkinga yokushisa komhlaba ukuba ibe yimbi kakhulu.Ukukubeka ngokungagwegwesi, kuyafaneleka ngempela ukutuswa ukusebenzisa isikhwama sokufundisa ukuze wenze indawo ezungezile yomhlaba wonke ibe ngcono.Abantu abaningi bacabanga ukuthi kuyinto encane ukushintsha izikhwama zepulasitiki ngezikhwama ezonakalayo ngokwabo, futhi akwanele ukushintsha noma yini, kodwa inqobo nje uma abantu abaningi bebona ubuhle bezikhwama ezonakaliswayo, indawo yonke yomhlaba izoba nezinguquko ezinhle futhi abe nomthelela omuhle esikhathini esizayo.
Ngokwabelana ngengxenye engenhla yokuqukethwe, wonke umuntu uyaqonda futhi ukuthi impahla ekhethelwe isikhwama esonakele i-polyolefin resin eyonakalayo nezinye izinto eziningi.Kungenxa yokuthi kungenxa yokusebenza kwayo okuhle okonakele okwenza amazwe amaningi athakaselwe.
Isikhathi sokuthumela: Feb-21-2022