Qhov cuam tshuam ntawm cov ntaub ntawv ntim khoom rau ib puag ncig thiab cov peev txheej
Cov ntaub ntawv yog lub hauv paus thiab tus thawj coj ntawm kev lag luam thiab kev sib raug zoo hauv tebchaws. Thaum sau cov ntaub ntawv, rho tawm, npaj, tsim khoom, ua tiav, thauj mus los, siv thiab pov tseg, ntawm ib sab, nws txhawb nqa kev txhim kho kev sib raug zoo thiab kev lag luam thiab kev vam meej ntawm tib neeg, ntawm qhov tod tes. Nws kuj siv zog thiab cov peev txheej ntau, thiab tso tawm ntau cov pa roj pov tseg, dej pov tseg thiab cov khib nyiab pov tseg, ua rau muaj kuab paug rau ib puag ncig ntawm tib neeg. Ntau cov ntaub ntawv qhia tau tias, los ntawm kev tshuaj xyuas qhov sib piv ntawm kev siv zog thiab cov peev txheej thiab lub hauv paus ntawm kev ua qias tuaj rau ib puag ncig, cov ntaub ntawv thiab lawv cov khoom tsim tawm yog ib qho ntawm cov luag haujlwm tseem ceeb uas ua rau muaj kev tsis txaus zog, kev siv khoom ntau dhau thiab txawm tias poob qis. Nrog kev vam meej ntawm cov khoom lag luam thiab kev nce qib sai ntawm kev lag luam ntim khoom, cov ntaub ntawv ntim khoom kuj ntsib tib qho teeb meem. Raws li cov ntaub ntawv tsis tiav, tam sim no kev siv cov ntaub ntawv ntim khoom ib tus neeg hauv ntiaj teb yog 145kg ib xyoos. Ntawm 600 lab tons ntawm cov kua thiab cov khib nyiab khov tsim tawm hauv ntiaj teb txhua xyoo, cov khib nyiab ntim khoom yog kwv yees li 16 lab tons, suav txog 25% ntawm tag nrho cov khib nyiab hauv nroog. 15% ntawm qhov hnyav. Nws muaj peev xwm xav tias tus lej zoo kawg li no yuav ua rau muaj kev ua qias tuaj rau ib puag ncig thiab pov tseg cov peev txheej hauv lub sijhawm ntev. Tshwj xeeb, "kev ua qias tuaj dawb" los ntawm cov yas ntim khoom pov tseg uas tsis tuaj yeem lwj mus rau 200 txog 400 xyoo yog qhov pom tseeb thiab txhawj xeeb.
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Qhov cuam tshuam ntawm cov ntaub ntawv ntim khoom rau ib puag ncig thiab cov peev txheej tau pom tseeb hauv peb yam.
(1) Kev ua qias tuaj los ntawm cov txheej txheem tsim cov ntaub ntawv ntim khoom
Thaum tsim cov ntaub ntawv ntim khoom, qee cov khoom siv raw raug ua tiav los ua cov ntaub ntawv ntim khoom, thiab qee cov ntaub ntawv raw ua rau muaj kuab paug thiab raug tso tawm mus rau hauv ib puag ncig. Piv txwv li, cov pa roj pov tseg, dej pov tseg, cov khib nyiab seem thiab cov tshuaj lom neeg, nrog rau cov khoom khov uas tsis tuaj yeem rov ua dua tshiab, ua rau muaj kev puas tsuaj rau ib puag ncig ib puag ncig.
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(2) Qhov xwm txheej tsis ntsuab ntawm cov khoom ntim khoom nws tus kheej ua rau muaj kuab paug
Cov ntaub ntawv ntim khoom (xws li cov khoom siv ntxiv) yuav ua rau cov ntsiab lus lossis ib puag ncig tsis huv vim muaj kev hloov pauv ntawm lawv cov khoom siv tshuaj lom neeg. Piv txwv li, polyvinyl chloride (PVC) tsis muaj kev ruaj khov thermal zoo. Ntawm qee qhov kub (kwv yees li 14 ° C), hydrogen thiab cov tshuaj lom chlorine yuav lwj, uas yuav ua rau cov ntsiab lus tsis huv (ntau lub tebchaws txwv tsis pub PVC ua cov khoom noj ntim). Thaum hlawv, hydrogen chloride (HCI) raug tsim tawm, ua rau muaj nag acid. Yog tias cov nplaum siv rau kev ntim khoom yog cov kuab tshuaj, nws kuj tseem yuav ua rau muaj kuab tshuaj vim nws muaj tshuaj lom. Cov tshuaj chlorofluorocarbon (CFC) siv hauv kev lag luam ntim khoom ua cov neeg sawv cev ua npuas dej los tsim ntau yam yas ua npuas dej yog cov neeg ua txhaum tseem ceeb hauv kev rhuav tshem cov huab cua ozone txheej ntawm lub ntiaj teb, coj kev puas tsuaj loj heev rau tib neeg.
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(3) Cov pov tseg ntawm cov ntaub ntawv ntim khoom ua rau muaj kuab paug
Kev ntim khoom feem ntau yog siv ib zaug xwb, thiab kwv yees li 80% ntawm cov khoom ntim khoom loj heev dhau los ua cov khib nyiab ntim khoom. Los ntawm kev pom thoob ntiaj teb, cov khib nyiab khov uas tsim los ntawm cov khib nyiab ntim khoom suav txog li 1/3 ntawm qhov zoo ntawm cov khib nyiab khov hauv nroog. Cov ntaub ntawv ntim khoom sib xws ua rau muaj kev pov tseg ntau ntawm cov peev txheej, thiab ntau cov ntaub ntawv uas tsis lwj lossis tsis rov ua dua tshiab yog qhov tseem ceeb tshaj plaws thiab tseem ceeb ntawm kev ua qias tuaj ib puag ncig, tshwj xeeb tshaj yog cov khoom siv yas ua npuas ncauj pov tseg thiab cov yas pov tseg. "Kev ua qias tuaj dawb" uas tsim los ntawm cov hnab khw yog qhov ua qias tuaj loj tshaj plaws rau ib puag ncig.
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Lub sijhawm tshaj tawm: Kaum Ib Hlis-14-2022
