生物除磷体系中生物标志物的管理初探

通过研究MDA、电解质渗出量和Q2^-这3个损伤性指标，初步探讨了通过生物标志物来管理生物除磷体系的可行性。结果表明，MDA、电解质渗出量和Q．^-这3个指标中，利用SOD电极在线检测Q．^-的变化来管理除磷体系最为简便。从Q．^-的变化规律得出当体系由好氧交替到厌氧时。前90min对释放磷尤为重要，即受氧胁迫时，系统产生O2．^-浓度不能高于0．025mmol／g，否则磷的释放不会增加，进而影响系统的除磷效果。因此，可以通过在线监测O2．^-的浓度变化来动态管理除磷体系。

Study on the Management of Biological Markers in Biological Phosphorus Removal System

Through the three injury index such as MDA, electrolyte leakage and O2. - , the feasibility in using biological markers to manage biological phosphorus removal system was discussed preliminarily. The results showed that, in the three indicators, online detection of 02. - changes using SOD electrode, to manage the phosphorus removal system was simple. From the changes of O2. -, the system from aerobic to anaerobic, the first 90min on the release of phosphorus is particularly important, that is, with the oxygen stress, the system produced O2. - concentration could not be higher than 0.025 mmol/g, otherwise, the release of phosphorus would not increase, then phosphorus removal was affected. So, dynamic management of phosphorus removal system could be conducted through on-line monitoring the changes of O2.