【摘要】 采用两种不同气源的曝气生物滤池对污水处理厂二级出水进行深度处理中试研究。结果表明,空气曝气和纯氧曝气生物滤池对CODMn的去除率相近,分别为30.5%和30.9%;以纯氧为气源的生物滤池硝化能力远强于空气曝气生物滤池,氨氮总去除率77.4%,出水氨氮为2.1～6.3 mg/L;纯氧曝气提高了滤池上部氨氮去除效果,维持滤池内溶解氧在6 mg/L以上,沿水流方向使pH逐渐下降。纯氧曝气生物滤池是污水深度处理中去除氨氮的有效工艺。更多还原

【Abstract】 A pilot test using biological aerated filter(BAF)with two different gas sources was carried out in the advanced study on secondary effluent of wastewater treatment plant.The results showed:the effects of CODMn removal by air BAF and oxygen BAF were similar with 30.5% and 30.9% respectively;the nitrification ability of oxygen BAF was far stronger than that of air BAF;the ammonia removal achieved 77.4% and its concentration in effluent ranged from 2.1 mg/L to 6.3 mg/L;oxygen aeration maintained the dissolved oxygen in filtration tank above 6 mg/L,improved the ammonia disposal efficiency in the upper portion of BAF,and decreased the pH along the current direction.Oxygen BAF was a effective ammonia removal process in advanced wastewater plant.更多还原