Role of ozone and granular activated carbon in the removal of mutagenic compounds.

Abstract:

:The identification of certain organic compounds in drinking water has led water treatment specialists to be increasingly concerned about the eventual risks of such pollutants to the health of consumers. Our experiments focused on the role of ozone and granular activated carbon in removing mutagenic compounds and precursors that become toxic after chlorination. We found that if a sufficient dose of ozone is applied, its use does not lead to the creation of mutagenic compounds in drinking water and can even eliminate the initial mutagenicity of the water. The formation of new mutagenic compounds seems to be induced by ozonation that is too weak, although these mutagens can be removed by GAC filtration. Ozone used with activated carbon can be one of the best means for eliminating the compounds contributing to the mutagenicity of water. A combined treatment of ozone and activated carbon also decreases the chlorine consumption of the treated water and consequently reduces the formation of chlorinated organic compounds.

authors

Bourbigot MM,Hascoet MC,Levi Y,Erb F,Pommery N

doi

10.1289/ehp.8669159

subject

Has Abstract

pub_date

1986-11-01 00:00:00

pages

159-63

eissn

0091-6765

issn

1552-9924

journal_volume

69

pub_type

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