【摘要】 好氧颗粒污泥是近期发展起来的一种生物膜工艺,也是一种生物自固定过程。沉淀性能良好,具有高的容积负荷和很强的抗冲击负荷能力。微生物相丰富,因此具有很高的生物活性,对有机碳、氮和磷的去除效率很高。颗粒污泥的形状、尺寸、空隙率、密度等由污水的组成和操作参数决定。低水力停留时间,高的H D比值和较高的流体剪切力有利于颗粒污泥的形成。更多还原

【Abstract】 Aerobic Granular Sludge is a biofilm process and also is the self-immbilized sludge, which is recently founded under aerobic condition. It has good settalbility, high volumetric loading and a high flexibility with respect to fluctuating loading rates. It has rich microorganism, which makes it have a high activity . The efficiency of COD ,N and P removal is very high. Shape,size,porosity and density etc. are determined by the composition of wastewater and operating parameters. Low hydraulic retention time, high ratio of reactor height to diameter of reactor and higher hydrodynamic shear force benefit the granulation of sludge.更多还原