摘要
采用二级吹脱加生化的方法处理高浓度氨氮废水，试验在工况Ⅰ（气、水温均为4℃）和工况Ⅱ（气温4℃，水温28℃，pH＝10．5）条件下分别进行静、动态试验，结果表明在工况Ⅱ条件下，氧化铁废水（浓氨水）的静、动态试验氨氮去除率分别为82．67％和84．19％；综合废水的静、动态试验氨氮去除率一级吹脱分别为62．仍％和74．16％，二级吹脱后氨氮浓度降至82．16mg／L和74．32mg／L。再接上后续的生化处理，该废水能达到规定的排放标准。
The high coarentration arnmonia nitrogen is treated by two stages blow - denitrogenation and bio - chmical method. Experimentsare carried out in two conditions with static and dynamic tests separately: Condition Ⅰ (Temperatures of gas and water are both at 4℃ ) andConditeon Ⅱ (Temperature of gas is 4℃, while tha of water is 28℃ with pH = 10. 5). Results indicate tha under Condition Ⅱ, theammonia nitrogen removal rates in the static and dynamic tests for iron ocide waste water (conentrated ammonia liquor) are 82.67% and84. 19% respectively. While the ammonia nitrogen remooval rates in the static and dynamic tests for comprehensive water with one stageblow - denitrogenation are 62 .03% and 74. 16% respectively, and the ammonia nitrogen concentrations are reduced to 82. 16 mg/L and 74.32mg/L two stages blow - denitrogenation. If bio - chemical treatment is the, the waste water can reach the stipulated discharge standard.
关键词
氨氮废水处理
二级吹脱
生化处理
Ammonia nitrogen waste water
Blow - denitrogenation
Bio - chemistry
