Journal of Civil and Environmental Engineering

Department of Civil Engineering, Wuhan University, Hubei, China

Publications

• Research Article   
  Study on the Removal of High Nitrate-nitrogen Concentration from Pig Farm Wastewater by Heterotrophic and Sulphur Autotrophic Synergistic Denitrification Filter Process
  Author(s): Qing Zhang*
  
  Following the anaerobic fermentation process in a lagoon, the effluent from pig wastewater exhibited elevated levels of total nitrogen and nitrate nitrogen. The utilization of simple sulphur-limestone autotrophic denitrification resulted in a sluggish reaction rate and relatively moderate removal load. To enhance the efficacy of the sulphur autotrophic denitrification process, a strategy was implemented involving the introduction of a limited quantity of corncobs as a slow-release carbon source. This addition was made to a sulphur-limestone autotrophic denitrification reactor that was being operated in a continuous and stable manner. Furthermore, the volume ratio of the corncobs added was progressively increased. This study examines the alterations in nitrate nitrogen, Chemical Oxygen Demand (COD), sulphate, and alkali consumption within the sulphur-limestone autotrophic denitrificati.. Read More»
  DOI: 10.37421/2165-784X.2023.13.519

  Abstract HTML PDF