Abstract 1 716.2 mg/L high concentrations of ammonianitrogen wastewater from Ende coal gasification process of Tongliao Tongshun carbon factory was treated by homemade air stripping device.The influence of temperature, pH, throughput and air blowing off time were investigated. The experimental results show that the optimal conditions are: the temperature 25 ℃, pH 11, throughput 1 m3/h, reaction time 150 min. In that condition, the ammonia nitrogen removal rate of water can be 99.52%,concentration of ammonia nitrogen is 8.28 mg/L, which meet the integrated emission standard of discharge wastewater GB 8978-1996.
SUN Ye-Tao, GUO Wa-Li, DAN Yi, LV Hai-Li , SONG Yan.Treatment of High Concentrated Ammonia-Nitrogen Wastewater in Coal Gasification Process by Air Stripping[J] Chemcial Industry and Engineering, 2010,V27(6): 486-489
Copyright 2010 by Chemcial Industry and Engineering
2010, Vol. 27 
