Concentration of MISS in aerobic membrane Bioreactor is increased when the HRT becomes longer. 好氧膜生物反應器內污泥濃度也隨著水力停留時間的增加而相應地增加。
It was also observed that the increase in sludge concentration resulted in the reduction of CFV along membrane surfaces which would influence the operation of the submerged MBR. 同時污泥濃度的上升會導致膜面錯流速度的降低，不利於控制膜污染。
