由實驗結果顯示，在各樣本的菌群結構方面，皆以相似於Proteobacteria的菌株所佔比例最大，最少的A2O為47.4 %，最多的TNCU-I活性污泥則有63.3 %。另外，在Proteobacteria的各分枝中，屬於alpha-subclass的菌株在四個樣本中均未出現，而屬於Beta-subclass的菌株，在營養鹽處理程序中為主要菌群，但在民生廠實廠中則明顯減少。Gamma-subclass在四個樣本中所在比例差異不大，均在14.6 %∼21.6 %之間。
而文獻中較少提及的Delta-subclass則僅在TNCU-I活性污泥中有發現，至於Epsilon-subclass在營養鹽處理程序中出現的比例並不高，但在民生廠活性污泥中卻多達23.4 %。至於CFB group，在民生廠則有21.5 %。
在菌種比較方面，除了在民生廠活性污泥外，其餘三個樣本皆可以發現Nitrospira group的存在，可見Nitrospira group確實較易在營養鹽處理程序中生長，另外在RBC生物膜上尚發現Nitrosomonas屬的存在，故推論RBC確實提供了硝化菌較多的生長空間。
在水質實驗的結果中顯示，A2O模廠除氮效率為63.2 %，TNCU-I則
為82.9 %，兩模廠的除磷效率更是高達100 %，而由菌相分析的結果亦顯示，在A2O污泥與TNCU-I污泥中，相關於除氮及除磷的真細菌皆佔有相當的比例。
另外，在TNCU-I活性污泥中，菌相分析的結果顯示有脫硝除磷菌的存在，且比例高達13.2 %，再配合水質分析的數據，可以發現，流經厭氧槽的PO4，有47 %會在缺氧槽中被攝取，證實了在TNCU-I的污泥中，確實存在著脫硝除磷菌。

The result showed that the Proteobacteria was the predominant bacteria in all samples, that is 47.4%, and 63.3% in A2O and TNCU-I process, respectively. The beta-subclass of Proteobacteria was the most predominant one in A2O and TNCU-I processes, but not in municipal wastewater treatment plant. The Gamma-subclass was predominant in all samples in a range of 14.6% to 21.6 %. No alpha-subclass was identified in all samples. The Delta-subclass was only observed in TNCU-I activated sludge. The epsilon-subclass was minor in the BNR process but was predominant in municipal wastewater treatment plant that is about 23.4 %. Furthermore, all the BNR samples could observe the genus Nitrospira and genus Nitrosospira. The genus Nitrosomonas was also observed in RBC biofilm.
As the nitrogen removal performance of A2O and TNCU-I was 63.2% and 82.9 % respectively, a certain bacteria were identified as nitrogen removal bacteria in both two processes. Additionally, lots of bacteria were identified as phosphate removal bacteria, corresponding to the phosphate removal efficiency of 100% in both processes.The result showed that the nitrifier, denitrifier and phosphate removal bacteria could be observed in TNCU-I process, corresponding to the excellent nitrogen and phosphate removal efficiencies.
Among the phosphate removal bacteria in TNCU-I process, 13.2% of total bacteria were identified as DNPAO-like bacteria, which could uptake phosphate under anoxic condition by using nitrate as electron acceptor.

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