Low-temperature effects on the removal of soluble manganese in MnOx(s)-coated media systems

Research Article| November 07 2016 Low-temperature effects on the removal of soluble manganese in MnOx(s)-coated media systems Racheal Cooley; Racheal Cooley 1Via Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24061, USA Search for other works by this author on: This Site PubMed Google Scholar William R. Knocke William R. Knocke 1Via Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24061, USA E-mail: knocke@vt.edu Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2016) 65 (8): 626–634. https://doi.org/10.2166/aqua.2016.077 Article history Received: July 22 2016 Accepted: October 03 2016 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 Racheal Cooley, William R. Knocke; Low-temperature effects on the removal of soluble manganese in MnOx(s)-coated media systems. Journal of Water Supply: Research and Technology-Aqua 15 December 2016; 65 (8): 626–634. doi: https://doi.org/10.2166/aqua.2016.077 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex The purpose of this study was to investigate the role of low-temperature conditions in potentially impacting soluble Mn2+ removal in MnOx(s)-coated media systems. The study involved an extensive examination of water quality and process data for a 10-year period (2005–2014) from the Harwood's Mill Water Treatment Plant in Newport News, VA. Additionally, laboratory-scale shallow depth column studies were performed employing MnOx(s)-coated media for soluble Mn2+ removal. Data were evaluated for the impacts of low temperature conditions, water pH, soluble Mn2+ concentration, and free chlorine concentration on the ability of MnOx(s)-coated media to promote effective soluble Mn2+ removal. The results show that the uptake of soluble Mn2+ onto MnOx(s)-coated filter media is significantly impacted by water temperatures below 15 °C, with impacts being very substantial under lower temperature (T < 10 °C) conditions. Also, the adverse effects of low temperature on MnOx(s)-coated treatment processes can be at least partially mitigated by an increase in solution pH. Mn control, pH impacts, temperature impacts © IWA Publishing 2016 You do not currently have access to this content.