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.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Caskey C. T., Kruh G. D. The HPRT locus. Cell. 1979 Jan;16(1):1–9. doi: 10.1016/0092-8674(79)90182-x. [DOI] [PubMed] [Google Scholar]
- Gruener N., Lockwood M. P. Mutagenic activity in drinking water. Am J Public Health. 1980 Mar;70(3):276–278. doi: 10.2105/ajph.70.3.276. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gruener N. Mutagenicity of ozonated, recycled water. Bull Environ Contam Toxicol. 1978 Oct;20(4):522–526. doi: 10.1007/BF01683558. [DOI] [PubMed] [Google Scholar]
- Kuroki T., Abbondandolo A., Drevon C., Huberman E., Laval F. Mutagenesis assays with mammalian cells. IARC Monogr Eval Carcinog Risk Chem Hum Suppl. 1980;(2 Suppl):107–133. [PubMed] [Google Scholar]
- Lankas G. R., Jr, Baxter S., Christian R. T. Effect of tumor promoting agents on mutation frequencies in cultured V79 Chinese hamster cells. Mutat Res. 1977 Oct;45(1):153–156. doi: 10.1016/0027-5107(77)90053-7. [DOI] [PubMed] [Google Scholar]