Sewage sludge which mainly comes from the primary settling tank and discharge of surplus sludge is the deposit produced in each operating unit in municipal wastewater treatment plant.

城市污泥是城市污水处理厂经各级处理净化污水而产生的沉积物，主要来自初沉池和剩余污泥的排放。

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An activated sludge system consists of an equalization basin, a settling tank, an aeration basin, a clarifier, and a sludge recycle line.

一个活性污泥系统包括一个均衡盆地，一个沉淀池，曝气盆地的，一个澄清和污泥回收线。

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The scraper of full-bridge type adopts automatic hinged arm structure, which can automatically adjust the inclination of tank caused by the accumulation or the uneven settling of the sludge.

全桥式刮臂采用铰支式可自动抬臂的新颖结构形式，对污泥堆积过厚或沉淀池不均匀沉降造成的池子倾斜有自动调节、逐层刮泥功能。

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