Taw qhia
Chlorinated cov kuab tshuaj yog ib pawg ntawm cov tshuaj uas tau siv dav ua cov kuab tshuaj thiab tshuaj ntxuav. Txawm li cas los xij, vim lawv cov khoom muaj kuab lom, ntau lub tebchaws tau txwv tsis pub siv rau xyoo tas los no. Hauv tsab xov xwm no, peb yuav tshawb txog cov laj thawj tom qab kev txwv tsis pub chlorinated cov kuab tshuaj thiab lawv cov txiaj ntsig kev noj qab haus huv thiab ib puag ncig.
Chlorinated Solvents yog dab tsi?
Chlorinated solvents yog cov organic tebchaw uas muaj chlorine atoms hauv lawv cov qauv molecular. Qee cov tshuaj chlorinated feem ntau siv xws li trichlorethylene (TCE), perchlorethylene (PCE), chloroform, thiab carbon tetrachloride. Cov tshuaj no muaj cov kuab tshuaj zoo heev thiab muaj txiaj ntsig zoo hauv kev tawg roj, roj, thiab lwm yam kab mob, ua rau lawv zoo tagnrho rau kev ua haujlwm tu thiab degreasing.
Kev noj qab haus huv los ntawm Chlorinated Solvents
Txawm hais tias lawv cov txiaj ntsig zoo li cov kuab tshuaj, cov kuab tshuaj chlorinated tau txuas nrog ntau yam teeb meem kev noj qab haus huv. Kev raug cov tshuaj no ntev ntev tuaj yeem ua rau muaj kev puas tsuaj rau lub paj hlwb, lub siab, thiab ob lub raum. Lawv kuj tau pom tias yog carcinogenic, txhais tau tias lawv tuaj yeem ua rau mob qog noj ntshav rau tib neeg.
Ib qho ntawm cov kuab tshuaj chlorinated uas paub zoo tshaj plaws, TCE, tau raug cais raws li cov neeg muaj peev xwm carcinogen los ntawm International Agency for Research on Cancer. Kev raug rau cov tshuaj no tau cuam tshuam nrog kev pheej hmoo ntawm leukemia, mob qog noj ntshav raum, thiab lymphoma. Ib yam li ntawd, PCE, lwm qhov uas siv cov tshuaj chlorinated hnyav, tau txuas rau qhov muaj feem yuav mob qog noj ntshav thiab mob qog noj ntshav.
Environmental Impacts ntawm Chlorinated Solvents
Chlorinated cov kuab tshuaj kuj ua rau muaj kev hem thawj rau ib puag ncig. Thaum cov tshuaj no tso rau hauv cov huab cua, lawv tuaj yeem ua rau tsim cov ozone hauv av, cov pa phem uas tuaj yeem ua rau muaj teeb meem ua pa. Lawv kuj tuaj yeem ua rau cov dej hauv av thiab av, ua rau kev puas tsuaj rau ib puag ncig mus ntev.
Tsis tas li ntawd, cov kuab tshuaj chlorinated yog cov kuab tshuaj tsis tu ncua, txhais tau tias lawv tsis tawg yooj yim hauv ib puag ncig. Qhov no txhais tau hais tias txawm tias me me ntawm cov tshuaj no tuaj yeem ua rau muaj kev cuam tshuam ntev rau ecosystems thiab tsiaj qus.
Kev Tswj Xyuas Kev Ua Haujlwm Tawm tsam Chlorinated Solvents
Vim muaj kev phom sij loj rau kev noj qab haus huv thiab ib puag ncig cuam tshuam nrog cov kuab tshuaj chlorinated, ntau lub tebchaws tau ua cov kauj ruam los txwv lossis txwv tsis pub siv. Hauv Tebchaws Meskas, Lub Chaw Saib Xyuas Kev Tiv Thaiv Ib Cheeb Tsam (EPA) tau tshaj tawm cov cai txwv kev siv TCE thiab PCE hauv qee qhov kev lag luam, xws li kev tu kom qhuav.
Ib yam li ntawd, European Union tau txwv tsis pub siv ntau cov kuab tshuaj chlorinated hauv kev lag luam. Qhov kev txwv no tau pib siv txij li xyoo 2016 thiab siv rau cov tshuaj xws li TCE, PCE, thiab carbon tetrachloride.
Lwm txoj rau Chlorinated Solvents
Hmoov zoo, muaj ntau txoj hauv kev rau cov kuab tshuaj chlorinated uas muaj kev nyab xeeb dua thiab tsis zoo rau tib neeg kev noj qab haus huv thiab ib puag ncig. Qee qhov kev xaiv no suav nrog:
1. Cov kuab tshuaj hydrocarbon, uas yog tsim los ntawm cov khoom siv hluav taws xob, rov ua dua tshiab xws li Pine roj thiab d-limonene.
2. Cov khoom ntxuav ntsuab, uas yog tsim los ntawm cov khoom xyaw ntuj, biodegradable thiab tsis muaj tshuaj lom.
3. Cov tshuaj ntxuav dej hauv dej, uas muaj txiaj ntsig zoo ntawm kev tshem cov roj thiab cov roj yam tsis tas yuav tsum muaj cov kuab tshuaj.
4. Ultrasonic tu, uas siv lub suab nthwv dej kom tshem tawm cov kab mob thiab tsis tas yuav siv cov kuab tshuaj.
Xaus
Hauv kev xaus, chlorinated cov kuab tshuaj yog ib pawg ntawm cov tshuaj uas tau siv dav los ua cov kuab tshuaj thiab tshuaj ntxuav. Txawm li cas los xij, vim lawv cov khoom muaj kuab lom thiab muaj peev xwm noj qab haus huv thiab ib puag ncig, ntau lub tebchaws tau txwv tsis pub siv. Muaj lwm txoj hauv kev rau cov kuab tshuaj chlorinated, uas muaj kev nyab xeeb dua thiab tsis muaj teeb meem rau tib neeg kev noj qab haus huv thiab ib puag ncig. Raws li cov pej xeem muaj lub luag haujlwm, nws yog peb lub luag haujlwm los xaiv thiab txhawb nqa lwm txoj hauv kev los tiv thaiv peb tus kheej thiab lub ntiaj teb nyob ib puag ncig peb.