Video: Dab tsi yog suav tias yog qib hlau siab hauv cov dej zoo?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hlau theem hauv dej zoo feem ntau tsawg dua 10 milligrams / liter. Lub EPA qib ntawm 0.3 mg / L tau tsim los rau kev zoo nkauj xws li saj, xim thiab staining. North Carolina tau teeb tsa kev noj qab haus huv-tiv thaiv qib rau Cov neeg raug mob ntawm 2.5 mg / L.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi suav tias yog cov hlau siab hauv dej?
Point of reference: Dej nrog ib hlau qib siab tshaj 0.3 milligrams ib liter (mg/L) feem ntau yog xav txog tawm tsam. Hlau qib feem ntau yog qis dua 10 mg / L hauv dej.
Ib yam li ntawd, nws puas muaj kev nyab xeeb rau haus dej nrog cov ntsiab lus hlau siab? Txawm tias ib theem qis ntawm hlau tsis tuaj yeem ua kev puas tsuaj ntau, hlau hauv dej raug suav hais tias yog cov kab mob sib kis vim nws kuj muaj cov kab mob uas pub tawm ntawm nws. Hauv ntxiv rau qhov no, cov ntsiab lus hlau siab ua rau ib qho overload uas tuaj yeem ua rau mob ntshav qab zib, hemochromatosis, teeb meem plab, xeev siab, thiab ntuav.
Ib yam li ntawd, tib neeg nug, dab tsi yog qhov kev nyab xeeb ntawm cov hlau hauv dej haus?
Raws li Department of Natural Resources (DNR) cov cai, hlau yog suav hais tias yog cov kab mob thib ob lossis "zoo nkauj" cov kab mob. Tam sim no pom zoo txwv rau hlau hauv dej , 0.3 mg / l (ppm), yog nyob ntawm saj thiab tsos es tsis muaj kev cuam tshuam kev noj qab haus huv.
Yuav ua li cas tshem tawm cov hlau siab ntawm cov dej zoo?
Birm. Birm yog lwm hom oxidizing media siv los rho tawm yaj hlau tawm ntawm dej zoo khoom siv. Tsis zoo li manganese greensand, birm tsis xav tau tshuaj oxidizing tus neeg sawv cev rau tshem tawm tus hlau . Txawm li cas los xij, birm tsuas yog ua haujlwm hauv dej nrog rau qib pH siab.
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