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REVISTA DE CHIMIE
Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

OSIM Nr. R102355
ISSN Online 2668-8212
ISSN Print: 1582-9049
ISSN-L: 1582-9049

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Revista de Chimie (Rev. Chim.), Year 2015, Volume 66, Issue 9,





Maria COHL, Liliana LAZAR, Igor CRETESCU, Ion BALASANIAN
Trihalomethanes Issues Drinking Water After Chlorination Treatment

Abstract:

Water disinfection, using oxidants bases-chlorine in order to diminish or to eliminate in totality the microbial charge in drinking water, presents the disadvantage of the formation of trihalomethanes (THMs), which are toxic and carcinogens compounds. The studies of THMs in water during the disinfection process and the possibilities for diminishing their content in drinking water were carried out in the municipal water treatment plant of Iasi, using gaseous chlorine and chlorine dioxide, respectively. Comparative analysis of the obtained results after the water disinfection by chlorination using the above mentioned disinfection agents, indicated that chlorine dioxide leads to lower concentrations of trihalomethanes and provides better quality drinking water in terms of the main water quality indicators. These results, based on seven years (2006 - 2013) of monitoring for THMs and for the main water quality indicators, recommended the use of chlorine dioxide for water disinfection, when the water is provided from the surface source, such as the Prut River. Key words: chlorine, chlorine dioxide, chlorination, chlorinated by-products (CBPs), disinfection, monitoring, water treatment plant of Iasi

Issue: 2015, Volume 66, Issue 9
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