Study on Treatment of Ammonium Nitrogen in Desulfurization and Denitrification Wastewater with Sodium Hypochlorite

Zhen Zhou; Da Long Hu; Chu Qiao Zhang; Xue Lian Shen; Chun Hua Wu; Ping Zhang; Luo Chun Wang

doi:10.4028/www.scientific.net/AMR.864-867.438

Paper Titles

Study of Removing Bacteria and Microcystis aeruginosa by Hydroxyl Radical
p.418

Characteristics of Phytoplankton Community Structure and Evaluation of Trophic State of Water Body in Bosten Lake
p.422

The Distribution of Microphytoplankton and Heavy Metal Content of Xiangshan Bay in Spring
p.428

Fundamental Research and Demonstration Project of Evaporation Treatment of Wastewater from FGD in Flue Gas Duct
p.434

Study on Treatment of Ammonium Nitrogen in Desulfurization and Denitrification Wastewater with Sodium Hypochlorite
p.438

CO Hydrogenation on Rh-Based Catalysts for Ethanol Production
p.442

Effect of Super-Hydrophobic Surface on the Corrosion Performance of Copper and Copper Alloys
p.447

Economic Feasibility of a Biogas Cogeneration Plant Fueled with Biogas from Animal Waste
p.451

Cinchona Alkaloid-Silyl Ether Derivatives as Organocatalysts for Asymmetric “Interrupted” Feist-Bénary Reaction
p.456

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867Study on Treatment of Ammonium Nitrogen in...

Study on Treatment of Ammonium Nitrogen in Desulfurization and Denitrification Wastewater with Sodium Hypochlorite

Abstract:

Based on the investigation of measurement method of ammonium nitrogen (NH₄-N) desulfurization and denitrification wastewater (DDW) by distillation method, effects of pH, Cl/N and the initial concentration of NH₄-N on the removal of NH₄-N in DDW by sodium hypochlorite were studied. Results of parallel test and standard recovery test demonstrated good reliability and accuracy of the distillation method for the measurement of NH₄-N in DDW. The NH₄-N removal efficiency increased with pH from 5.0 and 8.0, and then decreased with pH higher than 8.0. Therefore, the optimum pH value was 8.0 with NH₄-N removal efficiency of 74.7%. NH₄-N removal efficiency was increased from 16.9% to 84.1% with Cl/N molar ratio rose from 1 to 5. The initial concentration of NH₄-N showed insignificant effect on the removal amount of NH₄-N, and the removed NH₄-N was about 12~13mg/L with the addition of 4.86mmol/L sodium hypochlorite.