Reduction of chlorinous odor by the combination of oxidation and ion-exchange treatments

Abstract

Research Article| November 04 2013 Reduction of chlorinous odor by the combination of oxidation and ion-exchange treatments S. Echigo; S. Echigo 1Graduate School of Engineering, Kyoto University, C1, Nishikyo, Kyoto 615-8540, Japan E-mail: echigo@urban.env.kyoto-u.ac.jp Search for other works by this author on: This Site PubMed Google Scholar S. Itoh; S. Itoh 1Graduate School of Engineering, Kyoto University, C1, Nishikyo, Kyoto 615-8540, Japan Search for other works by this author on: This Site PubMed Google Scholar S. Ishihara; S. Ishihara 2Kobelco Eco-Solutions Co., Ltd, 1-4-78, Wakihama-cho, Chuo, Kobe 651-0072, Japan Search for other works by this author on: This Site PubMed Google Scholar Y. Aoki; Y. Aoki 3Ajinomoto Co., Inc., 1-1, Suzuki, Kawasaki, Kanagawa 210-8681, Japan Search for other works by this author on: This Site PubMed Google Scholar Y. Hisamoto Y. Hisamoto 4METAWATR Co. Ltd., 1, Fuji-cho, Hino, Tokyo 191-8502, Japan Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2014) 63 (2): 106–113. https://doi.org/10.2166/aqua.2013.205 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo 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 S. Echigo, S. Itoh, S. Ishihara, Y. Aoki, Y. Hisamoto; Reduction of chlorinous odor by the combination of oxidation and ion-exchange treatments. Journal of Water Supply: Research and Technology-Aqua 1 March 2014; 63 (2): 106–113. doi: https://doi.org/10.2166/aqua.2013.205 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex To better control chlorinous odor in tap water, we assessed the performance of the combination of oxidation (ozonation or advanced oxidation processes, AOP) and ion-exchange treatment. In this process, the hydrophilic neutral fraction (a major dissolved organic matter (DOM) fraction) is converted to ionic species, and these ions and ammonium ion are effectively removed during ion-exchange processes. We found that each treatment process (e.g., oxidation alone or ion exchange alone) was effective for the reduction of chlorinous odor to some extent, but the chlorinous odor formation potential was lower when the oxidation process and ion exchange were applied in series. The combination of AOP (ozone/vacuum ultraviolet treatment) at a high ozone dose and ion exchange (both cation and anion) was most effective, and the chlorinous odor formation potential was reduced to approximately 30 TON (threshold odor number) from more than 100 TON. Also, dissolved organic carbon and ammonium ion were effectively removed with this process. Compared with ozonation, AOP was more effective at a higher ozone dose. The effectiveness of this process was also confirmed in continuous mode by pilot-scale experiment. advanced oxidation, ammonium ion, chlorinous odor, dissolved organic matter, ion exchange, trichloramine This content is only available as a PDF. © IWA Publishing 2014 You do not currently have access to this content.