Cov ntaub ntawv nyoos thiab cov khoom siv rov ua dua tshiab yog ob hom khoom siv feem ntau siv hauv kev tsim cov yas, thiab lawv sib txawv ntawm cov hauv paus chiv keeb, cov khoom, ib puag ncig tus phooj ywg thiab kev siv.
1. Qhov chaw
Virgin Material: Cov ntaub ntawv nyoos xa mus rau cov khoom siv yas tshiab uas tau muab rho tawm ncaj qha los ntawm cov khoom siv ntuj tsim. Nws feem ntau yog hloov dua siab tshiab los ntawm cov roj los yog cov nkev ntuj los ntawm kev siv tshuaj lom neeg thiab cov txheej txheem ua haujlwm, xws li polyethylene (PE), polypropylene (PP), polystyrene (PS), thiab lwm yam.
Cov Khoom Siv Rov Siv: Cov khoom siv rov ua dua yog hais txog cov khoom tsim los ntawm kev rov ua dua thiab rov ua dua cov khoom siv yas lossis cov yas pov tseg. Cov khib nyiab yas no tau ua tiav los ntawm cov txheej txheem xws li tu, crushing, melting thiab re-granulation, thiab ces ua rau cov yas tshiab rau kev siv ntau lawm.
2. Nta thiab kev ua tau zoo
Raw khoom:
Zoo thiab Purity: Cov khoom xyaw feem ntau yog purity siab dua thiab tsis muaj kab mob nrog rau lwm yam tshuaj thiab yog li ntawd muaj cov tshuaj lom neeg thiab lub cev zoo ib yam.
Kev ua tau zoo: Txij li cov ntaub ntawv raw tsis tau ua dua, lawv cov qauv molecular tsis zoo, thiab lawv cov khoom siv kho tshuab (xws li lub zog tensile, cuam tshuam tsis kam, pob tshab, thiab lwm yam) feem ntau zoo dua li cov khoom siv dua tshiab.
Xim: Cov ntaub ntawv nyoos feem ntau yog pob tshab hauv cov xim lossis tuaj yeem pleev xim ntau dua vim lawv tsis cuam tshuam los ntawm impurities thiab cov kab mob.
Cov khoom siv rov ua dua tshiab:
Zoo thiab Purity: Cov khoom siv rov ua dua tshiab tuaj yeem ua tau zoo dua thiab purity thiab tej zaum yuav muaj impurities thiab cov kab mob, nyob ntawm tus txheej txheem thiab qhov chaw ntawm kev rov ua dua thiab rov ua dua. Kev sib xyaw cov khoom pov tseg los ntawm ntau qhov chaw tuaj yeem ua rau muaj kev hloov pauv ntawm cov khoom siv.
Khoom: Vim yog kev rov ua dua thiab cua sov ntawm cov khoom siv rov ua dua tshiab, cov saw hlau molecular yuav tawg, ua rau txo cov khoom siv xws li lub zog thiab tawv, tshwj xeeb tshaj yog nyob rau hauv kev siv zog siab.
Xim: Cov ntaub ntawv siv dua tshiab feem ntau muaj xim tsaus lossis xim tsis sib xws vim yog sib xyaw ntawm cov xim sib txawv thiab hom yas, thiab tej zaum kuj muaj xim tsawg dua li cov khoom siv raw.
3. Kev tiv thaiv ib puag ncig
Raw khoom:
Kev cuam tshuam ib puag ncig: Kev tsim cov khoom siv raw suav nrog kev noj ntau ntawm cov peev txheej ntuj, xws li roj lossis roj av, thiab ntau cov pa roj carbon dioxide thiab lwm cov pa phem raug tso tawm thaum lub sijhawm tsim khoom, yog li nws muaj kev cuam tshuam ntau dua rau ib puag ncig.
Non-renewable: Kev tsim cov ntaub ntawv raw cia siab rau cov peev txheej fossil tsawg, uas tsis tuaj yeem txuas ntxiv dua ib zaug, yog li lawv siv mus ntev yuav muaj kev cuam tshuam tsis zoo rau ib puag ncig thiab cov peev txheej.
Cov khoom siv rov ua dua tshiab:
Cov txiaj ntsig zoo ib puag ncig: Siv cov khoom siv rov ua dua tshiab pab txo qis kev cuam tshuam ib puag ncig ntawm cov pov tseg yas, txo cov ntim pov tseg thiab cov pa phem yas, thaum txo kev cia siab rau cov khoom siv tsis siv dua tshiab xws li roj av.
Kev lag luam ncig: Kev siv cov khoom siv rov ua dua tshiab yog ib feem tseem ceeb ntawm kev lag luam ncig, pab tsim kom muaj kev siv peev txheej ruaj khov thiab txo cov pa roj carbon hneev taw thiab kev siv hluav taws xob.
4. Lub hom phiaj thiab daim ntawv thov
Raw khoom:
Daim ntawv thov teb: Vim nws lub siab purity thiab superior mechanical zog, raw cov ntaub ntawv yog dav siv nyob rau hauv cov khoom uas muaj cov ntaub ntawv siab, xws li khoom noj khoom haus thiab kev kho mob ntim, haus fwj, high-kev ua tau zoo industrial cov khoom, thiab lwm yam.
Cov kev cai nruj: Nyob rau hauv daim ntawv thov scenarios uas yuav tsum tau siab transparency, tsis muaj tshuaj lom thiab nruj tu cev tej yam kev mob (xws li zaub mov tiv tauj cov ntaub ntawv thiab cov khoom siv kho mob), cov ntaub ntawv raw yog cov khoom nyiam.
Cov khoom siv rov ua dua tshiab:
Cov chaw siv: Cov khoom siv rov qab siv tau feem ntau siv rau hauv cov cheeb tsam uas cov khoom siv yuav tsum tau nruj me ntsis, xws li cov hnab khib nyiab, pallets, paj lauj kaub, cov khoom ntim tsis yog khoom noj, cov khoom siv, thiab lwm yam.
Nqe kom zoo dua: Vim yog tus nqi qis ntawm cov khoom siv rov ua dua tshiab, lawv tsim nyog rau kev tsim khoom loj ntawm cov khoom lag luam nrog kev lag luam siab, pab txo cov nqi tsim khoom thiab cov nqi khoom.
Muaj qhov sib txawv tseem ceeb ntawm cov khoom siv raw thiab cov khoom siv rov ua dua tshiab raws li keeb kwm, kev ua tau zoo, kev tiv thaiv ib puag ncig thiab kev siv. Cov ntaub ntawv nyoos muaj kev purity siab thiab kev ua tau zoo tshaj plaws rau kev thov rau cov ntawv thov, thaum cov khoom siv rov ua dua tshiab ua rau muaj kev tiv thaiv ib puag ncig thiab kev loj hlob ntawm kev lag luam ncig thiab tsim nyog rau cov khoom lag luam nrog kev ua haujlwm qis. Kev xaiv cov khoom siv twg feem ntau yog nyob ntawm qhov xav tau ntawm daim ntawv thov tshwj xeeb, kev xav txog tus nqi, thiab kev paub txog ib puag ncig.
