Niaj hnub no, yas yog ib qho ntawm cov ntaub ntawv uas peb siv feem ntau niaj hnub https://www.tgtextrusion.com/news/plastic-recycle-machine/lives. Nws siv ntau yam uas nws yog ib qho ntawm cov khoom uas tsim cov khoom pov tseg ntau tshaj plaws. Ib yam dab tsi uas tau dhau los ua teeb meem loj thiab kev txhawj xeeb ntawm thoob ntiaj teb.
Peb siv nws thiab tham txog kev rov xav txog nws txoj kev siv, tab sis peb puas paub nws zoo? Hauv tsab xov xwm no, peb npog qee qhov yooj yim ntawm plastics.
Cov lej sib txawv rau cov yas
Nws yog nyob rau hauv lub raj mis, ntim, qhwv, thiab lwm yam khoom siv niaj hnub. Yas yog ntau yam raws li nws yog recyclable. Los ntawm kev rov ua dua cov yas uas koj siv txhua hnub, koj tuaj yeem txo koj qhov cuam tshuam rau ib puag ncig thiab pab cov lag luam txiav nqi. Txawm li cas los xij, tsis yog txhua hom plastics raug tsim sib npaug. Tus lej nyob rau hauv lub cim rov ua dua tshiab ntawm cov thawv yas, hu ua SPI Code, muab cov ntaub ntawv muaj txiaj ntsig txog kev nyab xeeb thiab biodegradability ntawm txhua hom yas. Kev nkag siab txog cov lej no yuav pab koj paub txheeb xyuas cov ntaub ntawv siv los rov ua dua tshiab. Rau kev siv ceev, ntawm no yog saib ceev ntawm cov lej sib txawv:
Polyethylene Terephthalate (PETE lossis PET)
High Density Polyethylene (HDPE)
Polyvinyl Chloride (P lossis PVC)
Tsawg-Density Polyethylene (LDPE)
Polypropylene (PP)
Polystyrene (PS)
Lwm yam Plastics
Ø PETE lossis PET (Polyethylene Terephthalate): Thawj zaug siv hauv xyoo 1940, PET plastics feem ntau pom muaj nyob rau hauv lub raj mis haus, cov thawv ntim khoom noj tsis zoo thiab cov tshuaj ntxuav qhov ncauj. Clear PET plastics feem ntau suav hais tias muaj kev nyab xeeb, tab sis tuaj yeem nqus cov ntxhiab thiab tsw ntawm cov khoom noj thiab kua hauv lawv. Lawv kuj tuaj yeem ua rau muaj kev phom sij yog tias raug tshav kub, xws li yog lub raj mis dej tso rau hauv lub tsheb kub. Sij hawm dhau mus, qhov no tuaj yeem ua rau Antimony tawm ntawm cov yas thiab rau hauv cov kua. Hmoov zoo, cov yas no tau yooj yim rov ua dua, thiab feem ntau cov nroj tsuag rov ua dua tau txais lawv, yog li kev pov tseg kom zoo yog yooj yim. PET yas yog siv rau hauv cov ntaub pua plag, rooj tog, thiab fiber ntau rau cov khaub ncaws caij ntuj no.
Ø HDPE (High Density Polyethylene): Ib yam tshiab ntawm cov yas, HDPE yog thawj zaug tsim nyob rau xyoo 1950 los ntawm Karl Ziegler thiab Erhard Holzkamp. HDPE yog cov yas uas feem ntau siv dua tshiab thiab feem ntau pom tias muaj kev nyab xeeb rau zaub mov tiv tauj los ntawm FDA. Vim tias nws cov qauv sab hauv, HDPE muaj zog dua li PET, thiab tuaj yeem rov qab siv tau zoo. Nws kuj tseem siv tau rau cov khoom uas yuav muab khaws cia lossis siv sab nraum zoov, vim tias nws ua haujlwm zoo nyob rau hauv qhov kub thiab txias. HDPE cov khoom muaj kev pheej hmoo tsawg heev ntawm kev nkag mus rau hauv cov zaub mov lossis dej. Koj yuav pom cov yas no nyob rau hauv cov mis nyuj jugs, yogurt tubs, ntxuav cov khoom ntim, lub raj mis ntxuav lub cev thiab cov khoom zoo sib xws. Ntau cov menyuam yaus cov khoom ua si, cov chaw ua si, cov lauj kaub cog, thiab cov kav dej kuj yog tsim los ntawm HDPE. HDPE Recycled yog tsim rau hauv cov cwj mem, yas lumber, yas fencing, picnic tables thiab fwj.
Ø V los yog PVC (Polyvinyl Chloride): Thawj zaug pom nyob rau hauv 1838, nws yog ib qho ntawm cov yas qub tshaj plaws. Kuj tseem hu ua Vinyl, PVC yog ib hom yas uas pib tsis nruj, tab sis hloov tau yooj yim thaum cov yas ntxiv. Pom muaj nyob rau hauv daim npav rho nyiaj, qhwv zaub mov, kav dej, vuas, qhov rais thiab cov khoom siv kho mob, PVC tsis tshua muaj siv dua. PVC plastics muaj cov tshuaj tsis zoo uas cuam tshuam rau ntau yam kab mob, suav nrog cov kab mob hauv pob txha thiab daim siab thiab cov teeb meem kev loj hlob ntawm cov menyuam yaus thiab cov menyuam mos. Khaws cov khoom PVC kom deb ntawm cov khoom noj thiab dej haus. Cov kev pabcuam tshwjxeeb rov ua dua PVC rau hauv pem teb, vaj huam sib luag thiab txoj kev gutters rau npe rau ob peb tug.
Ø LDPE (Low-Density Polyethylene): LDPE muaj cov qauv yooj yim tshaj plaws ntawm tag nrho cov yas, ua rau nws yooj yim los tsim. Tias yog vim li cas nws feem ntau yog siv rau ntau hom hnab. Cov yas huv thiab nyab xeeb heev, LDPE kuj pom muaj nyob hauv cov khoom siv hauv tsev xws li cov hnab yas, cov thawv ntim khoom noj khov thiab cov fwj uas siv tau. Ntau cov kev pabcuam rov ua dua tshiab tau pib txais LDPE plastics, tab sis nws tseem nyuaj rau rov ua dua tshiab. Recycled LDPE yog tsim rau hauv cov khoom xws li cov thoob khib nyiab, vaj huam sib luag, rooj tog zaum, pem teb thiab npuas qhwv.
Ø PP (Polypropylene): Tshawb pom ntawm lub tuam txhab roj av hauv xyoo 1951, PP yog tawv, ruaj khov thiab tuaj yeem tiv taus qhov kub thiab txias. Nws kuj tseem suav tias yog cov yas muaj kev nyab xeeb, thiab vim li ntawd, nws tau pom nyob rau hauv tupperware, tsheb qhov chaw, thermal vests, yogurt ntim, thiab txawm tias cov pawm pov tseg. Thaum nws tuaj yeem rov ua dua tshiab, nws tau muab pov tseg ntau zaus. Thaum rov ua dua, nws tau hloov mus rau hauv cov khoom hnyav xws li pallets, ice scrapers, rakes thiab roj teeb cables. Ntau qhov kev siv rov ua dua tshiab txais PP.
Ø PS (Polystyrene): PS, los yog Styrofoam, tau tshawb pom los ntawm kev sib tsoo hauv lub teb chaws Yelemees xyoo 1839. Ib qho yooj yim recognizable yas, PS muaj nyob rau hauv khob haus, rwb thaiv tsev, packing cov ntaub ntawv, qe cartons thiab pov tseg noj hmo. Nws yog pheej yig thiab yooj yim los tsim, thiab yog li pom nyob txhua qhov chaw. Txawm li cas los xij, nws tsis muaj kev nyab xeeb vim tias Styrofoam tsis zoo rau ob qho tib si rau leaching cov tshuaj phem, tshwj xeeb tshaj yog thaum cua sov, thiab rau cov khoom siv tsis zoo. Zoo li PP, nws feem ntau yog muab pov tseg, txawm hais tias qee qhov kev siv dua tshiab tuaj yeem lees txais nws. PS yog siv rau hauv ntau yam khoom xws li rwb thaiv tsev, khoom siv hauv tsev kawm ntawv thiab daim ntawv tso cai daim ntawv tso cai.
Ø Lwm yam Plastics: SPI code 7 yog siv rau tag nrho cov yas tsis yog ib feem ntawm lwm 6 hom. Txawm hais tias lawv suav nrog hauv cov khoom nrov xws li looj tsom iav dub, lub computer casing, nylon, compact discs thiab lub raj mis me me, cov yas no muaj cov tshuaj lom bisphenol A lossis BPA. Tsis tsuas yog lawv txaus ntshai, tab sis cov hom yas no tseem nyuaj heev rau rov siv dua vim lawv tsis tawg yooj yim. Thaum cov nroj tsuag rov ua dua tau txais nws, Yas #7 feem ntau yog siv rau hauv cov ntoo yas thiab cov khoom tshwj xeeb.
Dab tsi ntawm cov yas tuaj yeem rov ua dua?
Ib yam li cov cai tau siv los sib txawv ntawm cov yas vim lawv qhov sib txawv ntawm cov khoom sib txawv thiab, yog li ntawd, hauv cov hom phiaj, muaj qhov sib txawv ntawm cov khoom siv rov ua dua tshiab.
Qhov tseeb, muaj ib hom, tus lej 7, uas tsis tuaj yeem rov ua dua. Tsis tas li ntawd, cov khoom uas ua los ntawm cov khoom uas nyuaj rau kev sib cais, pigmented heev los yog degraded los ntawm atmospheric tej yam kev mob tsis haum rau recycling.
Muaj kev faib tawm ntawm qhov yooj yim ntawm kev rov ua dua los ntawm hom uas tsim plaub "labels" hauv qhov no: "yooj yim", "ua tau", "nyuaj" thiab "nyuaj heev".
Cov hom yas yuav raug faib raws li hauv qab no:
Ib qho yooj yim: PET, HDPE
Ua tau: LDPE, PP
Nyuaj: PS
Yooj yim heev: PVC
Yuav Cov Khoom Siv Yas Recycling Los Ntawm Peb
Muaj lub tshuab siv yas rov siv dua yog qhov tseem ceeb hauv kev siv cov yas xws li polyethylene, polypropylene thiab PVC. Ua siab zoo ncav tes rau lub tshuab ua haujlwm zoo thiab ua haujlwm tau zoo.
Post lub sij hawm: Sep-26-2022
