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Effectiveness in chlorite removal by two activated carbons under different working conditions: a laboratory study

2015; UWA Publishing; Volume: 64; Issue: 4 Linguagem: Inglês

10.2166/aqua.2015.132

1365-2087

Sabrina Sorlini, Maria Cristina Collivignarelli, Matteo Canato,

Membrane Separation Technologies

Research Article| February 23 2015 Effectiveness in chlorite removal by two activated carbons under different working conditions: a laboratory study Sabrina Sorlini; Sabrina Sorlini 1University of Brescia – DICATAM, via Branze, 43 - 25123 Brescia (BS), Italy E-mail: sabrina.sorlini@ing.unibs.it Search for other works by this author on: This Site PubMed Google Scholar Maria Cristina Collivignarelli; Maria Cristina Collivignarelli 1University of Brescia – DICATAM, via Branze, 43 - 25123 Brescia (BS), Italy Search for other works by this author on: This Site PubMed Google Scholar Matteo Canato Matteo Canato 1University of Brescia – DICATAM, via Branze, 43 - 25123 Brescia (BS), Italy Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2015) 64 (4): 450–461. https://doi.org/10.2166/aqua.2015.132 Article history Received: September 16 2014 Accepted: January 15 2015 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn Email 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 Sabrina Sorlini, Maria Cristina Collivignarelli, Matteo Canato; Effectiveness in chlorite removal by two activated carbons under different working conditions: a laboratory study. Journal of Water Supply: Research and Technology-Aqua 1 June 2015; 64 (4): 450–461. doi: https://doi.org/10.2166/aqua.2015.132 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Activated carbon is used in many drinking water facilities because it can remove a broad spectrum of contaminants (e.g., herbicides, pesticides, heavy metals, etc.) or to replace anthracite coal in dual media filters. In recent years, liquid chlorine has been substituted by chlorine dioxide (ClO2) because, for instance, it can remove natural organic matter in raw water without formation of harmful disinfection by-products. Interest in chlorine dioxide is due to formation of chlorite (ClO−2), which can be potentially toxic for humans. In this study, the authors investigated the applicability of two activated carbons coming from different matrices (coconuts and bituminous) as technology for chlorite removal. The activated carbons were tested at different conditions (virgin and pre-loaded with some substances) in order to simulate full-scale working situations, and their Freundlich isotherms were determined. The results show a good affinity of virgin carbons in chlorite removal (about 80%), but the pre-loading significantly affected the efficiency of the chlorite removal process, reducing it to only 19%. An investigation into the main removal mechanism used by the carbons for chlorite removal was also done. Results show that activated carbons used both reduction and adsorption processes. activated carbon, carbon pre-loading, chlorite, Freundlich isotherm © IWA Publishing 2015 You do not currently have access to this content.