FUEL & CHEMICAL PROCESSES ›› 2019, Vol. 50 ›› Issue (6): 57-59.

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Technical upgrading of total nitrogen removal from coking wastewater

Luo Ling1  Zou Jun1  Zhang Sheng1  Pang Cuiling2   

  1. 1.Coking Plant of Guangxi Liuzhou Iron and Steel Group Co.,Ltd.,Liuzhou 545002,China; 2.Baosteel Engineering & Technology Group Co.,Ltd.,Shanghai 201900,China
  • Online:2019-11-11 Published:2020-01-03

Abstract:

This paper introduces an additional biological denitrification unit to the coking wastewater treatment station, which can further reduce the total nitrogen content in the effluent of the coking wastewater treatment system.The total nitrogen removal efficiency can reach 88.04%.The total nitrogen content in the effluent of the coking wastewater treatment system can reach 15.78 mg/L,which is less than the limit of 20 mg/L in the Emission Standards of Pollutants for Coking Chemical Industry.

Key words: Coking wastewater, Biological denitrification, Denitrification

CLC Number: