Kodi ndudu za e-fodya ndizochepa kwambiri kuposa ndudu?

Inde, ndudu za e-fodya ndizochepa kwambiri kuposa ndudu. Nthawi zambiri timakhala ndi kusamvetsetsana kokhudza ndudu. Timaganiza kuti chikonga chimawononga thanzi lathu. Ndipotu si choncho. Ndi zinthu zina zoyambitsa khansa monga phula ndi formaldehyde zomwe zimapangidwa powotcha ndudu. Zinthu zoyambitsa khansa zomwe zili mu ndudu zamagetsi ndizochepa kwambiri kuposa ndudu. Kodi phula ndi chiyani? Phula lochuluka kwambiri limapangidwa panthawi yosuta, ndipo kupanga kwake, kulemeretsa, ndi kuonjezera mtengo wake kumagwirizana kwambiri ndi kutentha kwa ndudu komweko. Panthawi yosuta, kutentha kwa ndudu komweko kumatha kufika 600-900 ° C. ,

Kutentha kwa gawo lofiira kumatha kufika 980-1050 ℃, ndipo pakadutsa pakati pa kusuta kuwiri, kutentha kumatsika pafupifupi 100-150 ℃. Panthawi yosuta fodya, kupatulapo mbali yakunja ya ndudu, imatenthedwa ndi mpweya wosakwanira, womwe umangotulutsa mpweya wambiri wa carbon monoxide, komanso umapanga mitundu yambiri ya polycyclic onunkhira hydrocarbons, monga benzene. , pamene kutentha kwa kuphika kumawonjezeka. Ma carcinogens monga fenugreek, tiyi, pyrene, ndi phenol nthawi zambiri amapangidwa pa 700-900 ° C, pamene ma carcinogens monga phenols ndi fumaric acid amapangidwa pa kutentha kochepa kwa 500-700 ° C. Zipsera zakuda pa zala za wosuta komanso zakuda pa mano ndi phula losiyidwa ndi kusuta kwa nthawi yayitali. Bambo wamakono wa kuleka kusuta, katswiri wa zamaganizo wa ku Britain Michael Russelljiu anati: Anthu amasuta chifukwa cha chikonga, koma amafa ndi phula.