Raws li EPA (Lub Chaw Saib Xyuas Kev Tiv Thaiv Ib puag ncig hauv Tebchaws Meskas) Cov pa roj carbon activated yog tib lub tshuab lim dej pom zoo kom tshem tawm.
- tag nrho 32 tau txheeb xyuas cov kab mob organic xws li THMs (cov khoom lag luam los ntawm cov tshuaj chlorine).
- tag nrho 14 cov tshuaj tua kab (qhov no suav nrog nitrates nrog rau cov tshuaj tua kab xws li glyphosate kuj hu ua roundup)
- cov 12 feem ntau herbicides.
Cov no yog cov kab mob tshwj xeeb thiab lwm yam tshuaj uas cov lim dej tshem tawm.
Chlorine (Cl)
Feem ntau cov kais dej rau pej xeem hauv Tebchaws Europe thiab North America tau tswj hwm, sim thiab tau lees paub rau haus.Txawm li cas los xij, txhawm rau ua kom muaj kev nyab xeeb, chlorine ntxiv uas yuav ua rau nws saj thiab tsw phem.Activated Carbon lim yog zoo heev ntawm kev tshem tawm cov tshuaj chlorine thiab lwm yam tsis zoo saj thiab tsw.Cov lim dej ua kom zoo siab tuaj yeem tshem tawm95% lossis ntau dua ntawm cov tshuaj dawb chlorine.
Yog xav paub ntxiv txog qhov no nyeem txogtag nrho thiab dawb chlorine.
Chlorine yuav tsum tsis txhob totaub nrog Chloride uas yog cov ntxhia ua ke los ntawm sodium thiab calcium.Chloride tuaj yeem nce me ntsis thaum cov dej lim nrog cov pa roj carbon activated.
Chlorine bi-cov khoom
Qhov kev txhawj xeeb tshaj plaws txog cov dej kais dej yog cov khoom siv los ntawm cov khoom siv (VOCs) los ntawm cov tshuaj chlorine xws li THMs uas tau txheeb xyuas tias muaj feem yuav mob qog noj ntshav.Cov pa roj carbon activated muaj txiaj ntsig zoo dua li lwm cov tshuab lim hauv kev tshem tawm cov no.Raws li EPA nws tshem tawm 32 feem ntau cov tshuaj chlorine los ntawm cov khoom.Qhov kev ntsuas tshaj plaws hauv cov ntawv qhia txog dej yog tag nrho THMs.
Chloride (Cl-)
Chloride yog cov ntxhia hauv ntuj uas pab tswj cov ntshav ntim kom zoo, ntshav siab, thiab pH ntawm lub cev.Txawm li cas los xij, chloride ntau dhau hauv dej tuaj yeem ua rau muaj qab ntsev.Chloride yog ib yam khoom ntuj tsim ntawm cov kais dej uas tsis muaj kev noj qab haus huv tsis zoo.Nws yog ib feem ntawm cov txheej txheem chlorination ntawm cov dej haus los ntawm cov kab mob phem thiab kab mob.Nws tsis tas yuav lim lossis tshem tawm tab sis cov pa roj carbon activated feem ntau txo cov tshuaj chloride los ntawm 50-70%.Hauv qhov tshwj xeeb, chloride tuaj yeem nce ntxiv.
Tshuaj tua kab
Cov tshuaj tua kab yog cov khoom siv los tswj cov kab tsuag, suav nrog cov nroj tsuag uas xaus rau hauv av, pas dej, dej ntws, dej hiav txwv thiab qee zaum kais dej txawm tias kho.Activated Carbon yog kuaj kom tshem tawm 14 cov tshuaj tua kab ntau tshaj plaws suav nrog Chlordane, Chlordecone (CLD / Kepone), Glyphosate (Round-up), Heptachlor, thiab Lindane.Qhov no kuj suav nrog nitrate (saib hauv qab).
Tshuaj tua kab mob
Herbicides kuj feem ntau hu ua weedkillers, yog cov khoom siv los tswj cov nroj tsuag tsis xav tau.Activated Carbon yog kuaj kom tshem tawm 12 ntawm cov tshuaj tua kab ntau tshaj plaws suav nrog 2,4-D thiab Atrazine.
Nitrates (NO32-)
Nitrate yog ib qho tseem ceeb tshaj plaws rau cov nroj tsuag.Nws yog ib qho chaw nplua nuj ntawm Nitrogen, uas yog qhov tseem ceeb rau kev loj hlob ntawm cov nroj tsuag.Nitrate tsis muaj kev phom sij rau cov neeg laus tshwj tsis yog tias nws muaj ntau heev.Txawm li cas los xij, Nitrate ntau dhau hauv dej tuaj yeem ua rau Methemoglobinemia, lossis "tus menyuam xiav" kab mob (Tsis muaj oxygen).
Nitrate nyob rau hauv kais dej feem ntau yog los ntawm chiv, septic systems, thiab quav cia los yog kis ua hauj lwm.Cov pa roj carbon activated feem ntau txo cov nitrate los ntawm 50-70% nyob ntawm qhov zoo ntawm cov lim.
PFOS
PFOS yog cov khoom siv hluavtaws siv hauv cov khoom siv hluav taws xob tua hluav taws, hlau plating thiab stain repellent.Tau ntau xyoo nws tau xaus rau hauv ib puag ncig thiab cov dej haus nrog ob peb qhov xwm txheej loj hauv North America thiab Europe.Raws li kev tshawb fawb xyoo 2002 los ntawm Environmental Directorate ntawm OECD "PFOS tsis tu ncua, bioaccumulative thiab lom rau hom tsiaj."Activated Carbon tau pom tias muaj txiaj ntsig zootshem tawm PFOS suav nrog PFAS, PFOA thiab PFNA.
Phosphate (PO43-)
Phosphate, zoo li nitrate, yog qhov tseem ceeb rau kev loj hlob ntawm cov nroj tsuag.Phosphate yog ib qho muaj zog corrosion inhibitor.Cov ntsiab lus siab ntawm Phosphate tsis tau qhia tias muaj kev phom sij rau tib neeg.Public water systems (PWSs) feem ntau ntxiv phosphates rau cov dej haus los tiv thaiv cov leaching ntawm txhuas thiab tooj liab los ntawm cov kav dej thiab fixtures.Cov khoom siv hluav taws xob zoo tshaj plaws feem ntau tshem tawm 70-90% ntawm phosphates.
Lithium (Li +)
Lithium tshwm sim nyob rau hauv cov dej haus.Txawm hais tias nws muaj nyob ntawm tus nqi qis heev, Lithium yog ib qho tshuaj tiv thaiv kev nyuaj siab.Nws tau qhia tias tsis muaj kev phom sij rau tib neeg lub cev.Lithium tuaj yeem pom nyob rau hauv cov dej hiav txwv continental brine, dej hiav txwv geothermal, thiab roj av brine.Charcoal lim xws li TAPP Dej txo 70-90% ntawm cov khoom no.
Pharmaceuticals
Kev siv cov tshuaj ubiquitous tau ua rau muaj kev cuam tshuam tsis tu ncua ntawm cov tshuaj thiab lawv cov metabolites rau hauv dej khib nyiab.Cov kev soj ntsuam tam sim no qhia tau hais tias nws tsis zoo li qhov raug rau cov tshuaj qis heev hauv cov dej haus yuav ua rau muaj kev phom sij txaus ntshai rau tib neeg kev noj qab haus huv, vim tias qhov ntau ntawm cov tshuaj tau pom hauv cov dej haus muaj ntau qhov kev txiav txim siab qis dua li qhov tsawg kawg nkaus kev kho mob. .Pharmaceuticals tej zaum yuav raug tso tawm rau hauv cov dej hauv cov dej ntws los ntawm kev tswj tsis tau zoo lossis cov chaw tsim khoom, feem ntau cuam tshuam nrog cov tshuaj generic.Cov pa roj carbon zoo lim lim xws li EcoPro tshem tawm 95% ntawm cov tshuaj.
Microplastics
Microplastics yog qhov tshwm sim ntawm cov pov tseg yas hauv ntau hom.Cov nyhuv meej ntawm microplastics rau tib neeg kev noj qab haus huv yog qhov nyuaj rau kev txiav txim siab rau ntau yam laj thawj.Muaj ntau ntau hom yas, nrog rau cov khoom siv tshuaj sib txawv uas tej zaum yuav muaj los yog tsis muaj.Thaum cov khib nyiab yas nkag
waterways, nws tsis degrade li tej yam ntuj tso khoom ua.Xwb, raug rau lub hnub rays, tshuaj tiv thaiv rau oxygen, thiab degradation ntawm lub cev yam xws li nthwv dej thiab xuab zeb ua rau cov khib nyiab yas tawg mus rau hauv me me pieces.Cov microplastics tsawg tshaj plaws uas tau txheeb xyuas hauv cov ntawv tshaj tawm pej xeem yog 2.6 micron.A 2 micron carbon thaiv xws li EcoPro tshem tawm tag nrho cov microplastics loj dua 2-microns.
Post lub sij hawm: May-27-2022