丝状细菌，特别是索氏甲烷丝菌类似菌在颗粒污泥中起着重要作用；
Filamentous bacteria, especially Methanothrix soehgenii-like organisms, play an important role in the granules.
研究了一种后生动物—颤蚓对丝状细菌引起的活性污泥膨胀的控制效果。
The tubificidae, one type of metazoa was chosen to control activated sludge bulking which was caused by filamentous bacteria.
球衣菌是一种具有典型鞘结构的丝状细菌，广泛存在于活性污泥以及受污染的水体中。
Sphaerotilus is a kind of filamentous bacterium with typical sheath forming. It occurs mainly in activated sludge and polluted water.
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