以比耗氧速率作为丝状菌膨胀预警指标的研究

Using Specific Oxygen Uptake Rate as a Warning Index of Sludge Bulking

通过对4个不同运行条件的SBR反应器中活性污泥的SOUR与SVI的连续监测，研究了通过SOUR来预测丝状菌污泥膨胀风险的可行性。研究发现，SOUR出现峰值后的8～42d内往往会发生污泥膨胀事故。而针对这四组不同状态的污泥所进行的SOUR与SVI参数的监测与记录，显示这种SOUR与污泥膨胀对应出现的现象适用于状态各异的污泥。由于SOUR易于连续监测，使得该技术在污水厂易于实施，可以为技术人员提前应对污泥膨胀提供足够时间，从而帮助污水厂的运行与管理。

The feasibility of predicting sludge bulking risk through SOUR was investigated by con- tinuous monitoring of SOUR and SVI in the four different SBR reactors. The results showed that sludge bulking tended to occur SOUR and SVI data for adapted to various states from 8 to 42 days after the SOUR peaking time. Monitoring and recording of the four distinct kinds of sludge proved that this corresponding phenomenon was of sludge. This technology could be easily applied in WWTP due to convenient continuous monitoring of SOUR. Using this technology could offer enough time for technicians to take ac- tions before sludge bulking, which might help to operate and manage WWTP.