Oneoption is to use ferroussulfate to reduce the hexavalent chromium to aless toxic,trivalentchromiumformthat wills precipitate out of thesolution. Trivalentchromiumcan then be reducedbysodium hydroxide.
Oneoption is to use ferroussulfate to reduce the hexavalent chromium to aless toxic,trivalentchromiumformthat wills precipitate out of thesolution. Trivalentchromiumcan then be reducedbysodium hydroxide.