一、前言目前,国内外广泛应用活性污泥法处理城市综合污水,而且在工艺技术方面有了很大发展,但是控制分析还停留在测定COD或BOD_5,这样就难以有效地控制工艺过程,可能造成出水排放超标。在各种废水的生物降解性能试验中,主要采用标准稀释法或呼吸器测定生化过程耗氧量(BOD)。这些测定方法有以下缺 I. Introduction At present, the domestic and international extensive use of activated sludge treatment of urban sewage, and in the process technology has made great progress, but the control analysis is still in the determination of COD or BOD_5, so it is difficult to effectively control the process may Resulting in excessive discharge of water. In a variety of wastewater biodegradability test, the main standard dilution method or respirator biochemical process oxygen consumption (BOD). These methods have the following deficiencies