Trihalomethane, chlorite and bromate formation in drinking water oxidation of Italian surface waters

Research Article| May 01 2004 Trihalomethane, chlorite and bromate formation in drinking water oxidation of Italian surface waters Carlo Collivignarelli; Carlo Collivignarelli 1Department of Civil Engineering, University of Brescia, via Branze 38, 25123 Brescia, Italy Search for other works by this author on: This Site PubMed Google Scholar Sabrina Sorlini Sabrina Sorlini 1Department of Civil Engineering, University of Brescia, via Branze 38, 25123 Brescia, Italy Tel: +39 030.3715.826 Fax: +39 030.3715.503; E-mail: sorlini@ing.unibs.it Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2004) 53 (3): 159–168. https://doi.org/10.2166/aqua.2004.0014 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Twitter LinkedIn Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Carlo Collivignarelli, Sabrina Sorlini; Trihalomethane, chlorite and bromate formation in drinking water oxidation of Italian surface waters. Journal of Water Supply: Research and Technology-Aqua 1 May 2004; 53 (3): 159–168. doi: https://doi.org/10.2166/aqua.2004.0014 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Recent regulations on drinking water have introduced very restrictive limits for oxidation/disinfection by-products (DBPs), particularly total trihalomethane concentrations (TTHMs), chlorite and bromate. Consequently many utilities are closely optimizing their disinfection practices in order to meet the regulation standards. This study evaluates DBPs formation and suggests some applicability criteria for chlorine, chlorine dioxide and ozone for different waters.Different oxidation batch tests with chlorine, chlorine dioxide and ozone were performed on some raw water samples coming from ten representative sources in Italy: seven artificial lakes and three rivers. TTHMs, chlorite and bromate increase with increasing chlorine, chlorine dioxide and ozone dose, respectively. The Italian standard for TTHMs (30 µg l−1) is fulfilled by 50% of the waters for chlorine doses of 1.1–1.2 mg l−1. Because chlorite concentration is about 60% of chlorine dioxide dose, the Italian standard for chlorite (200 µg l−1) is fulfilled for chlorine dioxide doses lower than 0.3–0.4 mg l−1. The maximum concentration of 10 µg l−1 for bromate can be respected only for waters with very low bromide concentration (lower than 20 µg l−1) (von Gunten 2003). bromate, chlorine, chlorine dioxide, chlorite, ozone, trihalomethane This content is only available as a PDF. © IWA Publishing 2004 You do not currently have access to this content.