Abstract:

Experiment and study are carried out with SH-A strengthened denitrogenation and carbon removal process for the wastewater from the coal based needle coke production. The operation conditions and treatment result at various sections are discussed in detail. After treatment with the process, the various indexes of the wastewater can meet the national grade I comprehensive effluent discharge standard (GB 8978—1996）, the removal rate of NH3-N is up to the range from 96.3% to 100% and removal rate of COD up to the range from 92.4% to 94.2%.