Kodi Udindo Wa Sodium Metabisulfite Ndi Chiyani Pochiza Madzi Otayidwa Amafakitale

1. Sodium metabisulfite ndi mankhwala ochepetsera, omwe amagwiritsidwa ntchito pochiza madzi otayira omwe ali ndi chromium muzitsulo zonyansa.
2. Madzi otayira okhala ndi chromium amayenera kusanjidwa mosiyana malinga ndi miyezo ya dziko, ndipo sangatulutsidwe ku dziwe lophatikizika ndipo kuchuluka kwa chromium kwa hexavalent sikuyenera kupitilira 0.1
3. Chifukwa chake, pogwetsera sodium metabisulfite ndi m'madzi aiwisi okhala ndi chromium kuti achepetse chromium ya hexavalent kukhala trivalent chromium ndiyeno kunyezimira.