Baningi ngempela abantu abakhuluma ngezikhwama zikadoti ezihambisana nemvelo.Abantu abahlukene banezidingo ezihlukene zezikhwama zikadoti ezihambisana nemvelo: abanye bakholelwa ukuthi inqobo nje uma kusetshenziswa izinto ezinhle zokusetshenziswa ukukhiqiza izikhwama zikadoti, kuhambisana nemvelo, kanti abanye bakholelwa ukuthi ukufaka izinto ezivikela imvelo ezikhwameni zikadoti kuyimvelo.Yebo, futhi abanye abantu bacabanga ukuthi inqobo nje uma bebona umbiko wokuhlola ofanele, izikhwama zikadoti zinobungani bemvelo.Namuhla, iSayensi Nobuchwepheshe bazoxoxa ngokuthi hlobo luni lwezikhwama zikadoti ezinobungani bemvelo ngempela.
Izikhwama zepulasitiki “ezinobungani bemvelo” emakethe ikakhulukazi zihlanganisa lezi zinhlobo: izikhwama zepulasitiki ezibolile, izikhwama zepulasitiki ezibolayo, kanye nezikhwama zepulasitiki ezivundiswayo.
Isikhwama sepulasitiki esonakaliswayo: I-polymer esesikhwameni sepulasitiki ilimele kancane noma ngokuphelele ngenxa yemisebe ye-ultraviolet, ukugqwala kwe-oxidation, nokugqwala kwezinto eziphilayo.Lokhu kusho izinguquko ezakhiweni ezifana nokufiphala, ukuqhekeka kwendawo kanye nokuhlukana.
Izikhwama zepulasitiki ezibolayo: Inqubo ye-biochemical lapho i-organic matter esezikhwameni zepulasitiki iguqulwa ngokuphelele noma ingxenye ibe amanzi kanye ne-carbon dioxide, amandla kanye ne-biomass entsha ngaphansi kwesenzo samagciwane (amagciwane kanye nesikhunta).
Izikhwama zepulasitiki ezivundile: Izikhwama zepulasitiki zingakwazi ukubola ngaphansi kwezimo ezikhethekile zenhlabathi enezinga lokushisa eliphezulu, futhi ngokuvamile zidinga ukuvundisa kwezimboni ukuze kuzuzwe ukusebenza kahle kokuwohloka.
Izikhwama zikadoti ezonakaliswe ngokuphelele kuphela ziyizikhwama zikadoti ezinobungani bemvelo ngempela.Zenziwe ngezinto zekhabhoni ezikhishwe ezitshalweni ezinjengommbila nomoba.Zingacekelwa phansi zibe amanzi kanye ne-carbon dioxide ngaphandle kokungcolisa umoya nomhlabathi.Njengoba ukucekelwa phansi kwezithombe kanye nokucekelwa phansi kwamanzi kudinga ukucekelwa phansi endaweni ethile, izikhwama zepulasitiki emakethe ngokuvamile “ziyabola.”
Njengamanje, izindleko zezikhwama zemfucumfucu ezonakaliswa izikhathi ezingu-3-5 zezikhwama ezijwayelekile zemfucumfucu, futhi izindleko zokusetshenziswa ziphakeme kakhulu kunezikhwama ezijwayelekile zemfucumfucu.Isabelo semakethe sisesigabeni esincane futhi akukho kusakazwa okuningi.Singakhetha ukuthenga Funda imiyalelo ngokucophelela futhi wenze ukukhetha uma unomgomo.
Isikhathi sokuthumela: Jan-07-2022