Di Marzio W D
Departamento de Ciencias Básicas, Universidad Nacional de Luján, Argentina.
Water Sci Technol. 2002;46(1-2):119-22.
Activated sludge samples from municipal and industry plants were evaluated with the aim to recognise the mainly filamentous bacteria found. The routine tests recommended were performed: Gram, Neisser, PHB-Nilo blue epifluorescence reaction and S. The morphologic characteristics were determined. Correlation between environmental conditions and abundance of dominant bacteria were made. All plants were completely mixed configurations with anoxic reactor for denitrification ahead of main aerobic reactor. Also all systems were working at low F/M values or high sludge age (> ten days) and in some cases with low oxygen concentration. The dominant species were Type 021 N, Thiothrix I, Sphaerotilus natans, Microthrix parvicella, Nocardia sp, Type 1701, Type 1863, Type 0041 and Type 0092.
对来自市政和工业工厂的活性污泥样本进行了评估，目的是识别其中发现的主要丝状细菌。进行了推荐的常规测试：革兰氏染色、奈瑟氏染色、聚-β-羟基丁酸-尼罗蓝荧光反应和S染色。确定了形态特征。建立了环境条件与优势细菌丰度之间的相关性。所有工厂均为完全混合式配置，在主好氧反应器之前设有用于反硝化的缺氧反应器。此外，所有系统均在低F/M值或高污泥龄（>10天）下运行，在某些情况下氧气浓度较低。优势菌种为021N型、硫丝菌属I型、浮游球衣菌、微小丝菌、诺卡氏菌属、1701型、1863型、0041型和0092型。
