Sewage sludge which mainly comes from the primary settlingtank 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。
2
An activated sludge system consists of an equalization basin, a settlingtank, 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。
3
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.