And ORTT and OURO in the adhesive growth type of MBR was lower than that in the suspended growth type of MBR, but OURN was higher in the adhesive growth type of MBR than before.

胞外多聚物（ECP）是微生物代谢的重要产物，较高污泥浓度MBR中单位重量污泥产生的ECP要远远大于低污泥浓度MBR中的ECP，且较高的ECP含量易加重膜污染。