The effects of the three carbon sources glucose, sodium acetate, and sucrose on the transformation of nitrogen and phosphorous forms in an aerobic granular sludge (AGS) system were investigated. In addition, the microbial community in the sludge was analyzed. Dissolved organic nitrogen removal efficiency in the sodium acetate group remained good throughout the experimental period, with a removal rate of around 90%. The members of Paracoccus and Anaerorhabdus, could hardly use saccharides and therefore accounted for a small amount of the overall bacteria in the groups with glucose and sucrose. The proportion of membrane transport function genes was the largest in the sodium acetate group, with the value reaching to 14.05%. The gene abundance of Glycolysis in three groups were 1.12, 1.06 and 1.09%, respectively. Meanwhile, the genes nirK, norB/C, and nosZ, responsible for the conversion of nitrite to nitrogen in the sodium acetate group were higher than the glucose and sucrose groups. Gene abundance of Glycolysis was largest in the glucose group.

研究了三种碳源葡萄糖、醋酸钠和蔗糖对好氧颗粒污泥 (AGS) 系统中氮和磷形式转化的影响。此外，还分析了污泥中的微生物群落。醋酸钠组溶解有机氮去除率在整个实验期间保持良好，去除率​​在90%左右。成员副球菌和Anaerorhabdus, 几乎不能使用糖类，因此占葡萄糖和蔗糖组中细菌总数的一小部分。膜转运功能基因的比例在醋酸钠组中最大，达到14.05%。三组糖酵解基因丰度分别为1.12%、1.06%和1.09%。同时，乙酸钠组中负责亚硝酸盐向氮转化的基因nirK、norB/C和nosZ高于葡萄糖和蔗糖组。糖酵解的基因丰度在葡萄糖组中最大。