The test shows the flow in the modified forebay is remarkably improved, the efficiency of the pump raised and the sludgedeposit reduced.
试验研究表明，改进后的前池水流流态明显改善，水泵运行效率得到提高，并有效减少了前池的泥沙淤积。
2
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。
3
The higher the sludge concentration and the flux were, the easier it was for the sludge particles to deposit on the membrane surface.