Izindaba - Uyini umehluko phakathi kwemikhiqizo yokupakishwa kokudla yamahhala ye-PFAS kanye nemikhiqizo ejwayelekile yokupakishwa kokudla?

Isizinda esifanelekile: Ii-PFAS ethile yokusetshenziswa kuzinhlelo zokusebenza ezithile zokuxhumana nokudla

Kusukela ngawo-1960, i-FDA igunyaze i-PFAS ethile ukuthi isetshenziswe ezicelweni ezithile zokuxhumana nokudla. Amanye ama-PFAS asetshenziswa ezitsheni zokupheka, ukupakishwa kokudla,kanye nasekucubungulweni kokudla ngenxa yezakhiwo zazo ezinganamatheli futhi ezinamafutha, uwoyela, kanye nezingangeni manzi. Ukuqinisekisa ukuthi izinto ezithinta ukudla ziphephile ekusetshenzisweni kwazo okuhlosiwe, i-FDA yenza ukubuyekezwa kwesayensi okuqinile ngaphambi kokuba zigunyazwe emakethe.

Ukupakisha ukudla okusephepheni/ebhodini: I-PFAS ingasetshenziswa njengezinto zokuvimbela amafutha ezingxobeni zokudla okusheshayo, ezikhwameni ze-popcorn ze-microwave, ezitsheni zebhodini lokukhipha, kanye nasezikhwameni zokudla zezilwane ezifuywayo ukuvimbela uwoyela namafutha ekudleni ukuthi angaphumi ngephaketheni.

Izinketho ezingenayo i-PFAS emakethekokupakishwa kokudla

Njengoba abantu benaka kakhulu ukusetshenziswa kwe-PFAS ekupakisheni ukudla, i-PFAS iyiqembu lamakhemikhali enziwe ngabantu ahlotshaniswa nezinkinga ezahlukene zezempilo. Ngenxa yalokho, abathengi baya ngokuya beqaphela izinhlobo zezinto ezisetshenziswa ekupakisheni ukudla futhi bafuna ezinye izindlela.

Enye indlela enjalo yi-bagasse, into yemvelo etholakala ku-fiber kamoba. I-bagasse iyindlela enhle yokupakisha ukudla ngoba ingu-100%iyabola futhi ikwazi ukubolaNgaphezu kwalokho, inikeza isithiyo esihle kakhulu ekumelaneni nomswakama, amafutha, kanye noketshezi, okwenza kube inketho efanelekile yezinhlobo ezahlukene zokudla.

Kodwa uma kukhulunywa ngezitsha zokudla ezifakwe ama-bagasse, okunye okubalulekile kubathengi ukuthi azinayo yini i-PFAS. I-PFAS ivame ukusetshenziswa ekupakisheni ukudla ukwenza izinto ziqine futhi zingangeni kumabala namanzi. Kodwa-ke, njengoba kushiwo ngaphambili, la makhemikhali ahlotshaniswa nezinkinga ezahlukene zempilo.

Ngenhlanhla, kunezinketho ezingenayo i-PFAS emakethe uma kukhulunywa ukupakishwa kokudla kwe-bagasse imikhiqizo. Zenziwa ngaphandle kokusebenzisa amakhemikhali ayingozi futhi zisakwazi ukunikeza izinga elifanayo lekhwalithi nokusebenza njengezitsha zendabuko.

Ngakho-ke, ukukhetha izinketho ezingenayo i-PFAS kuyisinqumo esibalulekile uma kukhulunywa ngemikhiqizo yokupakisha ukudla. I-Bagasse iyinto etholakala ku-pulp kamoba, okwenza kubeenobungani nemvelokanye nenye indlela eqhubekayo esikhundleni sezitsha zepulasitiki. Kodwa akuyona yonke imikhiqizo yokupakisha ukudla edalwe ngendlela efanayo.

Kuyini umehluko phakathi kwemikhiqizo yokupakishwa kokudla okungenayo i-PFAS kanye nemikhiqizo evamile yokupakishwa kokudla?

Ngokwesibonelo, cabanga ngesitsha sokudla se-bagasse.

Izitsha zokudla ze-bagasse ezivamile zingase zibe ne-PFAS, okusho ukuthi zingangena ekudleni ezikuqukethe. Ngakolunye uhlangothi, izitsha zokudla ze-bagasse ezingenayo i-PFAS azinawo la makhemikhali ayingozi, okwenza kube ukukhetha okuphephile kokubili emvelweni nakubathengi.

Ngaphandle kokuqukethwe yi-PFAS, kuneminye imehluko phakathi kweziqukathi ezingenayo i-PFAS neziqukathi ezivamile ze-bagasse. Esinye yikhono lazo lokubekezelela amazinga okushisa ahlukene:

Izitsha ze-bagasse ezivamile zilungele ukudla okushisayo, kodwa izitsha ze-bagasse ezingenayo i-PFAS zilungele ukumelana namanzi ashisayo (45℃ noma 65 ℃, izinketho ezimbili zingakhethwa).

Omunye umehluko izinga lokuqina kwazo. Nakuba zombili izinhlobo zezitsha ziqinile.iyabola futhi ikwazi ukubola, Izitsha ze-bagasse ezingenayo i-PFAS zivame ukwenziwa ngodonga olujiyile, okungazenza ziqine futhi zimelane nokuvuza nokuchitheka.

Ngaphezu kwakho konke, uma ufuna inketho enobungani nemvelo futhi ephephile yezidingo zakho zezitsha zokudla, khona-ke kusobala ukuthi izitsha ze-bagasse ezingenayo i-PFAS ziyindlela engcono kakhulu. Azivikeli nje kuphela kumakhemikhali ayingozi, kodwa futhi zingamelana nobubanzi bokushisa.

Yini esingayisekela ngemikhiqizo yokupakishwa kokudla ye-Bagasse yamahhala ye-PFAS?

Imikhiqizo yethu yokuPakisha Ukudla yama-Bagasse yamahhala ye-FAS imboza izitsha zokudla,amathileyi okudla, amapuleti okudla, igobolondo le-clam njll.

Ngemibala: emhlophe kanye nemvelo zombili ziyatholakala.

Ukushintshela ezinkethweni ezingenayo i-PFAS kungaba yisinyathelo esincane esiya ekusaseni elinempilo nelizinzile, kodwa kubalulekile. Njengoba abathengi beqaphela kakhulu izingozi ze-PFAS, cishe sizobona izinkampani eziningi zinikeza ezinye izindlela ezingenayo i-PFAS emikhiqizweni eyahlukahlukene. Okwamanje, ukukhetha isitsha se-bagasse esingenayo i-PFAS kuyisinqumo esihle kakhulu kunoma ubani ofuna ukuba nomthelela omuhle kubo.impilo kanye nemvelo.

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