Chemical reduction of nitrate by metallic iron

Abstract

Research Article| February 01 2004 Chemical reduction of nitrate by metallic iron Jie Chi; Jie Chi 1College of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China Search for other works by this author on: This Site PubMed Google Scholar Shu-Ting Zhang; Shu-Ting Zhang 1College of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China E-mail: shuting_zhang@eyou.com Search for other works by this author on: This Site PubMed Google Scholar Xin Lu; Xin Lu 1College of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China Search for other works by this author on: This Site PubMed Google Scholar Li-Hua Dong; Li-Hua Dong 1College of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China Search for other works by this author on: This Site PubMed Google Scholar Sui-Liang Yao Sui-Liang Yao 2Research Institute of Innovative Technology for the Earth, 9-2, Kizugawadai, Kizu-cho, Soraku-gun, Kyoto 619-0292, Japan Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2004) 53 (1): 37–41. https://doi.org/10.2166/aqua.2004.0004 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 nav search search input Search input auto suggest search filter All ContentAll JournalsThis Journal Search Advanced Search Citation Jie Chi, Shu-Ting Zhang, Xin Lu, Li-Hua Dong, Sui-Liang Yao; Chemical reduction of nitrate by metallic iron. Journal of Water Supply: Research and Technology-Aqua 1 February 2004; 53 (1): 37–41. doi: https://doi.org/10.2166/aqua.2004.0004 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex The reduction reaction of nitrate by metallic iron under aerobic conditions was investigated in the pH range of 2.0–8.5. The concentration of nitrate, nitrite, ammonia/ammonium and total nitrogen in the reduction solution were monitored. The reduction products of nitrate were ammonia/ammonium remaining in the reduction solution and gaseous nitrogen emitted from the reduction solution. Nitrate predominantly reduced to gaseous nitrogen at the beginning of the reduction reaction, and ammonia/ammonium at the end of the reduction reaction. pH value was an important parameter affecting the reduction of nitrate by metallic iron. At a low pH values, ammonium was the main reduction product, while gaseous nitrogen was the dominant reduction product at high pH values. In the reduction products, gaseous nitrogen was 40.1, 56.0, 68.0, 77.8 and 81.0% after 150-min reduction at pH=2.0, 3.5, 5.0, 7.0 and 8.5, respectively. ammonia, chemical reduction, contaminated water, denitrification, metallic iron, nitrate This content is only available as a PDF. © IWA Publishing 2004 You do not currently have access to this content.