Cov khoom lag luam biodegradable, raws li lub npe qhia, uas yog, cov khoom lag luam degradable tuaj yeem hloov pauv mus ua cov pa roj carbon dioxide, dej thiab lwm yam me me molecular biomass nyob rau qee qhov xwm txheej, thiab yuav tsis nyob hauv ib puag ncig thiab ua rau muaj kuab paug dawb.
Qhov no yuav tsum pib nrog cov qauv ntawm cov khoom lag luam biodegradable. Cov yas ib txwm muaj, xws li polyethylene, cov khoom tseem ceeb ntawm cov hnab yas, yog cov polymers ntawm ethylene monomers, nrog lub cev hnyav thiab hnyav sib txuas ntawm cov khoom sib txuas molecular, uas nyuaj rau cov kab mob me me kom zom thiab nqus tau. Cov yas yas biodegradable feem ntau muaj heteroatoms nyiam los ntawm cov kab mob xws li N thiab O, uas tuaj yeem zom tau sai thiab nqus tau los ntawm cov kab mob me me. Tsis tas li ntawd, cov yas yas biodegradable feem ntau muaj cov qauv ester bond, uas yooj yim rau hydrolyze, uas tseem ua kom nrawm tag nrho kev puas tsuaj ntawm cov yas.
Raws li qhov kev ua ntawm cov kab mob me me thiab ib puag ncig ib puag ncig, lub cev ntawm cov khoom lag luam biodegradable hloov pauv los ntawm cov yas yas loj mus rau cov yas me me tawg, uas yog qhov muaj txiaj ntsig zoo rau kev txuas ntawm cov kab mob me me. , uas yooj yim dua rau cov kab mob me me kom zom tau.
Tom qab hydrolysis, cov kab mob me me tuaj yeem ua tau zoo dua&& quot; noj&& quot; cov yas me me ua rau cov tshuaj lwg me me.
Cov kab mob me me tso qee qhov kev puas tsuaj rau cov enzymes. Tom qab kev zom zaub mov, cov khoom tawg me me tau nqus thiab hloov pauv mus rau carbon dioxide, dej thiab biomass rau kev sib xyaw ntawm cov kab mob me me.
Nyob rau lub sijhawm no, cov yas uas tsis tuaj yeem ua tiav tau ua tiav tag nrho nws cov kev mus los, los ntawm cov roj lossis cov nroj tsuag mus rau cov tshuaj molecular, thiab tom qab ntawd ua cov polymerized los ntawm monomers rau hauv cov yas uas tuaj yeem ua kom puas thiab ua tiav rau ntau yam khoom yas. Thaum kawg, nyob rau hauv qhov kev txiav txim ntawm ib puag ncig microbial, lawv tau hloov pauv mus rau hauv dej, carbon dioxide thiab biomass thiab rov qab los rau ib puag ncig ib puag ncig hauv lwm daim ntawv tsis muaj kev phom sij.
Nws puas hnov tias lub hnab dev dev tag nrho yog qhov tsim nyog rau peb khaws cov tsiaj hauv tsev?
Aub ncuav mog qab zib yog kho los ntawm kev ua kom cov dev devstable hnab, thiab tom qab ntawd degraded rau hauv cov organic chiv los ntawm biodegradation txheej txheem. Vim li cas ho tsis kho cov ncuav mog qab zib dev thiab dhau los ua cov organic chiv.
