污水处理中影响因素及其最佳操作条件的确定

Determination of Influential Factors and Most Ideal Conditions for Sewage Water Treatment by Orthogonal Experiment Approach

采用正交试验设计法在厦门杏林污水处理厂进行试验 ,通过极差分析和方差分析确定污泥负荷和污泥龄是活性污泥法去除污水中有机污染物和磷的显著影响因素 ;其最佳操作条件为HRT =5h ,F/M>0 0 5kg (BOD5 ) /kg (MLSS) ;SRT =2 3-4 0d ,可生化比 >4 5,温度 =1 5-33℃。

The orthogonal experiment is used in Xinlin Sewage Water Treatment Plant.Through range and variance analysis,it is determined that the factor influencing the removal of organic pollutants in sewage water by active mire approach and phosphorus is the mire load and the age of mire.The most ideal condition is HRT=5h,F/M>0 05kg (BOD 5)/kg(MLSS),SRT=23-40d,biochemicalization rate>45,temperature=15-33℃.