Recycling hlau khib nyiab yog ib qho tseem ceeb ntawm kev ruaj ntseg, pab txo qis kev siv cov khoom siv hluav taws xob, txo cov khoom pov tseg thiab txo qhov hnyav ntawm ib puag ncig. Nrog rau kev loj hlob ntawm industrialization thiab nce nyob rau hauv cov hlau ntau lawm, cov khoom siv rov ua dua tshiab yog qhov tseem ceeb. Hauv tsab xov xwm no, peb yuav saib cov kev cov nyom uas cov lag luam ntsib thaum rov ua dua cov khib nyiab hlau, nrog rau cov kev daws teeb meem thiab lub luag haujlwm ntawm kev lag luam ncig hauv cov txheej txheem no.
Teeb meem ntawm kev rov ua dua cov khoom siv hlau
Kev siv cov khib nyiab hlau rov ua dua tshiab muaj ntau qhov teeb meem tseem ceeb uas ua rau nws nyuaj rau siv cov khoom siv hlau kom zoo.
1.Tsawg degree ntawm pov tseg sorting
Ib qho ntawm cov teeb meem tseem ceeb yog qhov tsis muaj kev faib cov khib nyiab zoo. Cov khib nyiab hlau feem ntau muaj ntau hom hlau thiab alloys uas yuav tsum tau cais cov txheej txheem rov ua dua tshiab. Piv txwv li, txhuas, hlau thiab tooj liab pov tseg tuaj yeem sib cais tsis tas siv cov cuab yeej tshwj xeeb. Tsis muaj kev sib cais ua rau tsis zoo ntawm cov khoom siv rov ua dua tshiab thiab ua rau cov nqi rov ua dua tshiab.
2.Cov nqi ua haujlwm siab
Recycling scrap hlau yuav tsum tau kim technologies xws li smelting thiab cov khoom sib cais. Lub zog siab thiab cov nqi khiav lag luam tuaj yeem nce tus nqi ntawm kev ua haujlwm, ua rau nws tsis yooj yim rau qee cov lag luam, tshwj xeeb tshaj yog nyob rau hauv cov teb chaws uas tsis muaj kev tsim kho vaj tse.
3.Toxic emissions thiab muaj kuab paug
Cov txheej txheem hlau rov ua dua tshiab, tshwj xeeb tshaj yog smelting, tuaj yeem ua rau tso cov khoom tsis zoo rau hauv qhov chaw. Cov pa phem xws li oxides ntawm carbon, sulfur thiab nitrogen tuaj yeem cuam tshuam rau ib puag ncig thiab kev noj qab haus huv ntawm cov neeg ua haujlwm. Cov tuam txhab lag luam niaj hnub no yuav tsum coj mus rau hauv tus account thiab siv cov khoom siv pov tseg thiab rov ua dua tshiab.
4.Tsis muaj infrastructure
Ntau lub teb chaws, tshwj xeeb tshaj yog cov tsim, tsis muaj cov txheej txheem zoo rau kev sau, txheeb xyuas thiab rov ua dua cov khib nyiab hlau. Qhov no ua rau tsub zuj zuj ntawm hlau pov tseg nyob rau hauv landfills, exacerbating ib puag ncig muaj kuab paug teeb meem.
Kev lag luam ncig raws li kev daws teeb meem
Lub voj voog kev lag luam (CE) yog ib qho qauv uas siv cov khoom pov tseg thiab cov khoom siv thiab cov khoom siv rov qab siv dua, txo qis kev siv cov peev txheej tshiab thiab txo qis ib puag ncig hneev taw. Kev taw qhia ntawm CE cov hauv paus ntsiab lus hauv kev ua cov khoom pov tseg hlau tuaj yeem ua rau muaj txiaj ntsig zoo ntawm cov txheej txheem, txo cov nqi thiab txhim kho ib puag ncig kev ua haujlwm.
1.Kev sib cais thaum ntxov thiab kev txheeb xyuas
Txhawm rau txhim kho qhov zoo ntawm kev rov ua dua tshiab thiab txo cov nqi, nws yog ib qho tsim nyog yuav tsum siv cov tshuab uas ua kom muaj kev sib cais ntawm cov hlau khib nyiab hauv cov theem thaum ntxov ntawm nws cov khoom. Kev siv cov thev naus laus zis niaj hnub xws li kev sib nqus sib nqus, cov khoom siv kho qhov muag thiab cov tshuab neeg hlau ua kom cov txheej txheem nrawm dua thiab txhim kho nws cov txiaj ntsig.
2.Kev siv cov txheej txheem tshiab
Kev siv thev naus laus zis tshiab xws li electrolysis thiab plasma processing tuaj yeem txo cov nqi rov ua dua tshiab thiab txo cov pa phem. Kev siv cov thev naus laus zis no tsis tsuas yog txuag lub zog xwb, tab sis kuj tseem txhim kho cov khoom siv rov ua dua tshiab, uas pab txo qhov xav tau ntawm cov hlau tseem ceeb.
3.Cov qauv kev lag luam ruaj khov
Kev siv lub voj voog kev lag luam yuav tsum tau tsim cov qauv kev lag luam kom ruaj khov uas cov tuam txhab lag luam tsis tsuas yog siv cov khoom pov tseg, tab sis kuj rov siv dua hauv kev tsim khoom. Piv txwv li, cov khoom siv hlau tuaj yeem siv los tsim cov khoom tshiab yam tsis muaj kev poob loj hauv qhov zoo. Qhov no tso cai rau peb txo qis kev siv cov peev txheej ntuj thiab txo qis cov pa roj carbon hneev taw ntawm kev tsim khoom.
4.Recycling thiab rov siv dua
Lub hauv paus ntsiab lus tseem ceeb ntawm kev lag luam ncig yog kom siv cov khoom siv ua ntej lawv hnav tag nrho. Nyob rau hauv cov ntaub ntawv ntawm cov hlau, qhov no tuaj yeem yog qhov rov siv cov khoom seem rau hauv kev tsim cov qauv tshiab, cov khoom thiab cov khoom siv. Nws yog ib qho tseem ceeb uas cov lag luam siv cov txheej txheem uas tsis tsuas yog tso cai rau cov hlau rov ua dua tshiab, tab sis kuj tseem yuav rov siv dua hauv cov khoom tshiab.
Piv txwv ntawm kev ua tiav cov khoom pov tseg hlau
Ntau lub tuam txhab tsim khoom loj twb tau ua raws li cov hauv paus ntsiab lus ntawm kev lag luam ncig thiab ua kom muaj kev vam meej hauv kev rov ua dua cov khoom siv hlau.
1.ArcelorMittal
ArcelorMittal yog ib lub tuam txhab loj tshaj plaws hauv ntiaj teb, siv cov khoom siv hlau rov ua dua tshiab los tsim cov hlau tshiab. Lub tuam txhab siv txog li 25% cov khoom siv rov ua dua tshiab hauv nws cov nroj tsuag metallurgical, uas txo cov kev siv cov khoom siv nkauj xwb thiab txo cov pa roj carbon dioxide.
2.Mercedes-Benz
Mercedes-Benz siv cov hlau rov ua dua tshiab hauv kev tsim nws cov tsheb. Txoj hauv kev no tsis yog tsuas yog txo cov kev cuam tshuam ib puag ncig, tab sis kuj txuag cov peev txheej, ua rau kev tsim khoom ruaj khov thiab ua haujlwm tau zoo.
3.Kev kho emissions technologies
Cov thev naus laus zis tu niaj hnub, xws li cov tshuab lim dej thiab cov catalytic converters, pab txo qis cov pa phem rau hauv cov huab cua, uas pab txhim kho qhov xwm txheej ib puag ncig. Cov thev naus laus zis no tau ua haujlwm zoo ntawm cov tuam txhab ua hlau.
Redexpartnquag txhawb nqa cov hauv paus ntsiab lus ntawm kev lag luam ncig thiab muab cov kev daws teeb meem tshiab rau kev rov ua dua cov khoom seem. Peb ua haujlwm nrog cov lag luam thoob ntiaj teb los pab lawv txhim kho lawv cov txheej txheem rov ua dua tshiab thiab txo lawv cov pa roj carbon monoxide. Tiv tauj peb los ua kom koj cov khoom lag luam ruaj khov thiab muaj txiaj ntsig!
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